EMT Practice Test

1. Question Content...

A. Choice A

B. Choice B

C. Choice C

D. Choice D

E. Choice E

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Question List

Question1: As shown in the figure, in the IS-IS network, the RTA configuration commands are as follows, please complete them.
RTA]isis
RTA-isis-1]______
RTA-isis-1]interface serial 2/0
RTA-Serial2/0]isis enable 1

Question2: After executing the displaospf interface command on the MSR router RTA, the router output is as follows:

From the above output, it can be judged that ________.

Question3: The networking is shown in the figure. RTA, RTB, RTC, and RTD are located in the same AS 100, which runs OSPF and only publishes the loopback routes of each router.

Except the OSPF COST between RTB and RTC is 15, the OSPF COST of other interconnected links is 10.
At the same time, BGP protocol is running in the network, RTD is BGP route reflector of RTA, RTB, RTC, no iBGP neighbor is established between reflector clients, RTA and RTB will be directly connected to the network segment 1.0.0.0/24 Use the network command to import into BGP. Is the following statement correct?

Question4: The advantages of DR/BDR election in OSPF protocol include ______.

Question5: In the topology shown in the figure, the following configurations are performed on RTA, RTB, RTC and RTD respectively:
RTA-LoopBack0] ip address 1.1.1.1 255.255.255.255
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTA-ospf-1]import-route direct
RTB-LoopBack0] ip address 2.2.2.2 255.255.255.255
RTB]ospf 1
RTB-ospf-1]area 1
rtb-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
rtb-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTC-LoopBack0] ip address 3.3.3.3 255.255.255.255
rtc]ospf 1
RTC-ospf-1]area 0
RTC-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
rtc-ospf-1-area-0.0.0.0]area 2
RTC-ospf-1-area-0.0.0.2]stub no-summarRTC-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
rtc-ospf-1-area-0.0.0.2]network 3.3.3.3 0.0.0.0
RTD-LoopBack0] ip address 4.4.4.4 255.255.255.255
RTD]ospf 1
RTD-ospf-1]area 2
RTD-ospf-1-area-0.0.0.2]network 4.4.4.4 0.0.0.0
RTD-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
RTD-ospf-1-area-0.0.0.2]stub
Which of the following routes may exist in the RTD's routing table ______.

Question6: In the topology shown in the figure, perform the following configurations on RTA, RTB, and RTC respectively:
RTA-GigabitEthernet0/0] ip address 192.168.2.1 255.255.255.0
RTA] ospf 1 router-id 1.1.1.1
RTA-ospf-1] area 1
RTA-ospf-1-area-0.0.0.1] network 192.168.2.0 0.0.0.255
RTB-GigabitEthernet0/0] ip address 192.168.2.2 255.255.255.0
RTB-GigabitEthernet0/1] ip address 192.168.3.1 255.255.255.0
RTB] ospf 1 router-id 2.2.2.2
RTB-ospf-1] area 1
RTB-ospf-1-area-0.0.0.1] network 192.168.2.0 0.0.0.255
RTB-ospf-1] area 0
RTB-ospf-1-area-0.0.0.0] network 192.168.3.0 0.0.0.255
RTB-ospf-1]import-route direct
RTC-GigabitEthernet0/0] ip address 192.168.3.2 255.255.255.0
RTC] ospf 1 router-id 3.3.3.3
RTC-ospf-1] area 0
RTC-ospf-1-area-0.0.0.0] network 192.168.3.0 0.0.0.255
Then the LSA types generated by RTB in the OSPF area are _______

Question7: Which of the following statements about BGP load sharing is correct is ______.

Question8: Company XZ required to build its network according to a modular enterprise network architecture. XZ Company has 1 R&D base in Shenzhen and Xi'an each; one office building in Beijing and Shanghai; offices with more than 50 people in 23 provincial capital cities; small offices with no more than 8 people in 200 small and medium-sized cities; More than 200 marketing and technical staff are typically traveling at any one time. XZ Company strictly prohibits employees from using the company network to access non-work related websites. According to these circumstances, the network module that XZ company should have is ________.

Question9: Which of the following address prefix lists matches the default route?

Question10: In IPv6 stateless address auto-configuration, the information that a node can obtain is ________.

Question11: In the networking shown in the figure, if RTA is required to access the 2::/64 network segment of RTB, which of the following commands needs to be configured on RTA?

Question12: In the IS-IS network shown in the figure, each router is configured as follows.
RTA-isis-1]cost-ste compatible
RTB-isis-1] cost-ste wide-compatible
RTC-isis-1]cost-ste narrow-compatible
Then it is _______ that can correctly calculate the link cost between each other.

Question13: In the topology shown in the figure, execute the following command on the RTA router:
RTA-ospf-1] default-route-advertise alwa
RTA] ip route-static 0.0.0.0 0.0.0.0 192.168.0.2
The default route cannot be observed in the routing table of the RTC router, the possible reason is ______

Question14: As shown, PC1 and PC2 are connected to RTC using ISATAP tunnel. In order to successfully establish a tunnel and PCI can automatically obtain a Pv6 address, what commands do administrators need to configure on the Tunnel0 interface of RTC?

Question15: How to configure route-polic to import BGP route with MED value of 1000 in OSPF 100 process?

Question16: In the topology shown in the figure, the following configurations are performed on RTA and RTB respectively:
RTA-ospf-1-area-0.0.0.1]network 192.168.0.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.1.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.2.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.3.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.4.0 0.0.0.255
RTB] acl number 2000
RTB-acl-basic-2000] rule 0 permit source 192.168.1.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1] filter 2000 export
Then the routes that cannot exist in the routing table of RTC are _____

Question17: In the network shown in the figure, the default next hop of the PTA is RTC, and the PBR configuration on the PTA is as follows:
policy-based-route pbr_a permit node 10
if-match packet-length 64 100
applip-address next-hop 11.0.0.2
if-match packet-length 101 1000
applip-address next-hop 12.0.0.2
policy-based-route pbr_a dennode 20
Assuming the strategy has been successfully applied, the data flow on the RTA, which statement is false ?

Question18: In the topology shown in the figure, the following configurations are performed on RTA and RTB respectively:
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB]ospf 1
RTB-ospf-1]area 1
rtb-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
If area 2 needs to be configured as a TotalStub area, how should it be configured on RTC and RTD?

Question19: In the topology shown in the figure, perform the following configuration on the RTA:
RTA-ospf-1-area-0.0.0.1]network 192.168.0.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.1.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.2.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.3.0 0.0.0.255
Now it is required that the RTC cannot learn the routes configured in the above RTA. What configurations can be performed on the router?

Question20: The IS-IS process of a router has been configured with NET as 01.abcd.0001.0002.0003.00. Which of the following NET addresses can still be configured?

Question21: In the topology shown in the figure, the RTC, RTD, and RTE are configured as follows:
RTC]ospf 1 router-id 2.2.2.2
RTC-ospf-1]area 2
rtc-ospf-1-area-0.0.0.2]nssa
rtc-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
RTD]ospf 1 router-id 1.1.1.1
RTD-ospf-1]area 2
RTD-ospf-1-area-0.0.0.2]network 40.0.0.0 0.0.0.255
RTE-LoopBack0] ip address 5.5.5.5 255.255.255.255
RTE]ospf 1
RTE-ospf-1]area 2
RTE-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
RTE-ospf-1-area-0.0.0.2]network 40.0.0.0 0.0.0.255
RTE-ospf-1-area-0.0.0.2]nssa
RTE-ospf-1]import-route direct
but_________ .

Question22: Among the following types of LSAs, the ones allowed to exist in the backbone area are _________

Question23: In the OSPF protocol, the correct statement about ABR aggregation is ______

Question24: In the topology shown in the figure, the correct IP addresses have been configured on RTA, RTB and RTC, and the network layer is reachable.

If OSPF neighbors need to be established between routers and routes are transmitted correctly, which of the following configurations are feasible?

Question25: In the IS-IS network shown in the figure, RTB is configured with route aggregation.
So which of the following routes are included in the IS-IS routing table of RTC?

Question26: Level-2 routing exists in ________.

Question27: V In the network as shown, the correct IP addresses have been configured on RTA, RTB and RTC.
Execute the following commands on the RTA, RTB and RTC routers respectively:
RTA-Serial5/0] ospf dr-priorit100
RTA] ospf 1 router-id 1.1.1.1
RTA-ospf-1] area 0
RTA-ospf-1] peer 192.168.1.2
RTA-ospf-1] peer 192.168.1.3
RTA-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.2
RTB] ospf 1 router-id 2.2.2.2
RTB-ospf-1] area 0
RTB-ospf-1] peer 192.168.1.1
RTB-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
RTC] ospf 1 router-id 3.3.3.3
RTC-ospf-1] area 0
RTC-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
Judging from the above configuration, ________

Question28: OSPF protocol does not belong to the function of Hello packet, which is _________.

Question29: Running the command on the router and its display information is as follows:
<RTC>displisis lsdb level-2 verbose
Database information for ISIS(1)
--------------------------------
Level-2 Link State Database
LSPID Se Num Checksum Holdtime Length ATT/P/OL
-------------------------------------------------- -----------------------------
1111.1111.1111.00-00 0x00000084 0xb5cc 511 62 0/0/0
SOURCE 1111.1111.1111.00
NLPID IPV4
AREA ADDR 01
INTF ADDR 10.1.2.1
INTF ADDR 10.1.3.1
INTF ADDR 172.16.3.1
NBR ID 3333.3333.3333.00 COST: 10
1111.1111.1111.00-01 0x0000009f 0xd4f3 1195 101 0/0/0
SOURCE 1111.1111.1111.00
IP-Internal 10.2.4.0 255.255.255.252 COST: 20
IP-Internal 192.168.18.0 255.255.255.0 COST: 20
IP-Internal 10.1.2.0 255.255.255.252 COST: 10
IP-Internal 10.1.3.0 255.255.255.252 COST: 10
IP-Internal 172.16.3.1 255.255.255.255 COST: 0
IP-Internal 172.16.0.0 255.255.252.0 COST: 10
3333.3333.3333.00-00* 0x0000007c 0x2425 640 58 0/0/0
SOURCE 3333.3333.3333.00
NLPID IPV4
AREA ADDR 02
INTF ADDR 10.1.3.2
INTF ADDR 10.3.4.1
NBR ID 1111.1111.1111.00 COST: 10
3333.3333.3333.00-01* 0x00000099 0x342d 640 77 0/0/0
SOURCE 3333.3333.3333.00
IP-Internal 10.1.3.0 255.255.255.252 COST: 10
IP-Internal 10.3.4.0 255.255.255.252 COST: 10
IP-Internal 10.2.4.0 255.255.255.252 COST: 20
IP-Internal 172.16.4.1 255.255.255.255 COST: 10
*-Self LSP, +-Self LSP(Extended), ATT-Attached, P-Partition, OL-Overload
From the above information, we can know that __________.

Question30: For the IS-IS protocol message exchange process, the correct one of the following descriptions is ________.

Question32: Which of the following statements is true in the alliance deployment shown in the figure?

Question33: Surely not in the OSPF stub area? type of LSA

Question34: The following OSPF protocol packets are _______.

Question35: Two MSR routers MSR-1 and MSR-2 are interconnected through the 192.168.1.0/24 network segment.
Now it is necessary to configure OSPF protocol on router MSR-1 to establish an adjacency relationship with MSR-2. Which of the following configurations is feasible? (Select one or more)

Question36: Regarding the Stub area and TotalStub area of the OSPF protocol, the following statement is wrong is ______

Question37: In the IS-IS network shown in the figure, the adjacency relationship between routers is established normally, and routes can be learned from each other.
Which routers in the figure must be Level-1-2 routers?

Question38: There are a lot of static routes with tags 100 and 200 on the RTA. RTA and RTB run OSPF routing protocol, and RTB needs to learn all static routes on RTA. At the same time, it is required that on RTB, the priority of the route with tag 200 is 200.
If the above requirements are fulfilled, which of the following configurations is correct?

Question39: b In BGP protocol packets, the function of the Update message is to ______

Question40: In the topology shown in the figure, the following configurations are performed on RTA and RTB respectively:
RTA-ospf-1-area-0.0.0.1]network 192.168.0.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.1.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.2.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.3.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.4.0 0.0.0.255
RTB] acl number 2000
RTB-acl-basic-2000] rule 0 permit source 192.168.1.0 0.0.0.255
RTB-ospf-1] filter-polic2000 import
Then the possible routes in the RTC routing table are _____

Question41: As shown in the figure, RTB establishes EBGP neighbor relationship with RTA and RTD, and AS100 uses confederation to solve large-scale routing problems. If RTA advertises route 10.1.1.0/24 to RTB.
Then regarding the advertisement of the route on RTB, the following statement is correct is ______.

Question42: As shown in the figure, RTB, RTC and RTA establish IBGP peers, and RTA is the reflector of RTB and RTC. Currently RTA and RTC are egress routers connecting to the Internet.
In order to make RTB access the Internet through RTA or RTC, a default route is configured on RTA and RTC, and advertised using the network command. Which of the following statements is correct is _____.

Question43: What kinds of ICMPv6 messages are used in the duplicate address detection process of the ND protocol?

Question44: Regarding the default metric values for route import by different routing protocols, which of the following descriptions is __________

Question45: Regarding the LSDB in the OSPF protocol, the following statement is correct is ________.

Question46: In the IS-IS network as shown in the figure, in the case of stable routing, the link between RTB and RTD increases from the address network segment 192.168.224.0/24, then IS-IS topology ______, IP routing information ______.

Question47: In the topology shown in the figure, the following configurations are performed on RTA, RTB, and RTC respectively:
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB]ospf 1
RTB-ospf-1]area 1
rtb-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
rtc]ospf 1
RTC-ospf-1]area 0
RTC-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
rtc-ospf-1-area-0.0.0.0]area 2
RTC-ospf-1-area-0.0.0.2]stub
rtc-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
If RTD can learn the route 10.0.0.0/24, how to configure it?

Question48: In the topology shown in the figure, the following configurations are performed on RTA, RTB, RTC and RTD respectively:
RTA-LoopBack0] ip address 1.1.1.1 255.255.255.255
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTA-ospf-1]import-route direct
RTB-LoopBack0] ip address 2.2.2.2 255.255.255.255
RTB]ospf 1
RTB-ospf-1]area 1
rtb-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTB-ospf-1]import-route direct
RTC-LoopBack0] ip address 3.3.3.3 255.255.255.255
rtc]ospf 1
RTC-ospf-1]area 0
rtc-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
RTC-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
rtc-ospf-1-area-0.0.0.0]area 2
RTC-ospf-1-area-0.0.0.2]stub
rtc-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
RTD-LoopBack0] ip address 4.4.4.4 255.255.255.255
RTD]ospf 1
RTD-ospf-1]area 2
RTD-ospf-1-area-0.0.0.2]network 4.4.4.4 0.0.0.0
RTD-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
RTD-ospf-1-area-0.0.0.2]stub
Which of the following routes may exist in the RTD's routing table ______.

Question49: As shown in the figure, the MSR router of the headquarters is connected to the branch through the Ethernet interface E1/0, and the connection is backed up through the ISDN network.

Which of the following options are feasible at this time?

Question50: The PBR configuration on a router is as follows.
policy-based-route pbr_a permit node 10
if-match acl 3000
apploutput-interface serial 2/0
policy-based-route pbr_a dennode 20
if-match acl 3000
Assuming the policy has been successfully applied, how will traffic matching Acl 3000 be forwarded on this router?

Question51: For NSAP area addresses in IS-IS, which of the following statements is true ________.

Question52: Running the command on the router and its display information is as follows:

From the above information, we can know that RTB has ______ IS-IS Level-2 routes sent to neighbors through LSP.

Question53: Regarding the comparison between OSPF protocol and RIPv2 protocol, the following statement is correct is _______.

Question54: SOA-based network architecture divides enterprise IT systems into which of the following layers? (Select one or more)

Question55: On an Ethernet link, the PC at address 1::1 sends an NS message to the PC at address 1::2.
At this time, the source and destination addresses of the NS message are ________ respectively.

Question56: Which of the following statements about IS-IS and OSPF is true _______.

Question57: In the topology shown in the figure, the following configurations are performed on RTA, RTB, RTC, and RTD respectively:
RTA-LoopBack0] ip address 1.1.1.1 255.255.255.255
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTA-ospf-1]import-route direct
RTB-LoopBack0] ip address 2.2.2.2 255.255.255.255
RTB]ospf 1
RTB-ospf-1]area 1
RTB-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
RTB-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTC-LoopBack0] ip address 3.3.3.3 255.255.255.255
RTC]ospf 1
RTC-ospf-1]area 0
RTC-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTC-ospf-1-area-0.0.0.0]area 2
RTC-ospf-1-area-0.0.0.2]nssa no-import-route no-summarRTC-ospf-1-area-0.0.0.2]network 30.0.0.0
0.0.0.255
RTC-ospf-1]import-route direct
RTD-LoopBack0] ip address 4.4.4.4 255.255.255.255
RTD]ospf 1
RTD-ospf-1]area 2
RTD-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
RTD-ospf-1-area-0.0.0.2]network 4.4.4.4 0.0.0.0
RTD-ospf-1-area-0.0.0.2]nssa
Then _______ may be injected into the backbone area

Question58: In the topology shown in the figure, the following configurations are performed on RTA, RTB, RTC and RTD respectively:
RTA-LoopBack0] ip address 1.1.1.1 255.255.255.255
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTA-ospf-1]import-route direct
RTB-LoopBack0] ip address 2.2.2.2 255.255.255.255
RTB]ospf 1
RTB-ospf-1]area 1
rtb-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
rtb-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTC-LoopBack0] ip address 3.3.3.3 255.255.255.255
rtc]ospf 1
RTC-ospf-1]area 0
RTC-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
rtc-ospf-1-area-0.0.0.0]area 2
RTC-ospf-1-area-0.0.0.2]nssa default-route-advertise no-summarRTC-ospf-1-area-0.0.0.2]network
30.0.0.0 0.0.0.255
RTC-ospf-1]import-route direct
RTD-LoopBack0] ip address 4.4.4.4 255.255.255.255
RTD]ospf 1
RTD-ospf-1]area 2
RTD-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
RTD-ospf-1-area-0.0.0.2]network 4.4.4.4 0.0.0.0
rtd-ospf-1-area-0.0.0.2]nssa
then there may not be injected _____ in zone 2

Question59: In H3C devices, the default priority value of RIP protocol routing is ________.

Question60: In the three autonomous systems shown in the figure, AS200 is the filtering AS of AS100 and AS300, and AS100 internally generates routes
10.1.1.0/24 , 10.1.2.0/24 , 10.1.3.0/24 .
The main device configuration is shown below.
RTC:
bgp 100
aggregate 10.1.0.0 255.255.0.0
network 10.1.1.0 255.255.255.0
network 10.1.2.0 255.255.255.0
network 10.1.3.0 255.255.255.0
undo snchronization
peer 200.1.2.2 as-number 200
RTB :
bgp 200
aggregate 10.1.0.0 255.255.0.0 as-set detail-suppressed
undo snchronization
peer 200.1.2.1 as-number 100
peer 200.1.3.2 as-number 300
The following statement is correct about the routing learning on each device.

Question61: The content carried in the OPEN message of the BGP protocol includes __________

Question62: In the network shown in the figure, the BGP route learning among the routers is normal, and the BGP route attributes all take the default values.
After the route 9.0.0.0 is imported into BGP on RTD, if the next hop of route 9.0.0.0 on RTA is to point to RTB, the following adjustment methods are feasible: ______

Question63: The topology of a certain network is complex, and there are multiple paths between the core and the branch. In order to control the routing between the core and the branch, effectively use the bandwidth resources, and reduce the maintenance cost, which of the following measures is optimal?

Question64: Level-1 routes exist on ________.

Question65: In the IS-IS network shown in the figure, RTA is configured with route aggregation.
So which of the following routes are included in the IS-IS routing table of RTC?

Question66: In the following statement about PBR (polic-based-route, policy-based routing) load balancing application, the wrong one is ______________.

Question67: In the topology shown in the figure, the following configurations are performed on RTA, RTB, RTC and RTD respectively:
RTA] ospf 1 router-id 1.1.1.1
RTA-ospf-1] area 0
RTA-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
RTA-ospf-1-area-0.0.0.0] network 1.1.1.1 0.0.0.0
RTB] ospf 1 router-id 2.2.2.2
RTB-ospf-1] area 0
RTB-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
RTB-ospf-1-area-0.0.0.0] network 2.2.2.2 0.0.0.0
RTB-ospf-1] area 1
RTB-ospf-1-area-0.0.0.1] network 192.168.2.0 0.0.0.255
RTC] ospf 1 router-id 3.3.3.3
RTC-ospf-1] area 1
RTC-ospf-1-area-0.0.0.1] network 192.168.2.0 0.0.0.255
RTC-ospf-1] area 2
RTC-ospf-1-area-0.0.0.2] network 192.168.3.0 0.0.0.255
RTC-ospf-1-area-0.0.0.2] network 3.3.3.3 0.0.0.0
RTD] ospf 1 router-id 4.4.4.4
RTD-ospf-1] area 2
RTD-ospf-1-area-0.0.0.2] network 192.168.3.0 0.0.0.255
RTD-ospf-1-area-0.0.0.2] network 4.4.4.4 0.0.0.0
Then the routes that can be observed on the RTD are ________

Question68: After executing the displaospf peer command on the MSR router RTA, the router output is as follows:

From the above output, it can be judged that ________.

Question69: In the topology shown in the figure, the following configurations are performed on RTA and RTB respectively
RTA-ospf-1-area-0.0.0.1] network 192.168.0.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1] network 192.168.1.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1] network 192.168.2.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1] network 192.168.3.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1] network 192.168.4.0 0.0.0.255
Now it is required that the RTC cannot learn the routes configured in the above RTA. What configurations can be performed on the router?

Question70: Which of the following statements is true about running Integrated IS-IS over an IP network ______.

Question71: Which of the following commands is used to reset PBR statistics?

Question72: Which of the following elements are present in both the routing table and the FIB table?

Question74: In the network shown in the figure, the BGP route learning among the routers is normal, and the BGP route attributes all take the default values.
After importing route 8.0.0.0 into BGP on RTA, if the next hop of route 8.0.0.0 on RTD is to point to RTC, the following adjustment methods are feasible: ______

Question75: In H3C devices, the default priority value of OSPF internal routes is ________.

Question76: As shown, 4 routers are connected to one Ethernet link. The router interface is of broadcast network type. Then according to the information in the figure, it can be judged that there are ________ IS-IS adjacencies on the Ethernet link.

Question77: An MSR router has three interfaces whose IP addresses are Loopback0:192.168.1.1/32, Loopback1:192.168.2.1/32, and GE0/0:192.168.3.1/30.
Run OSPF protocol and enable OSPF on three interfaces at the same time, then the Router ID selected by this router is _______.

Question78: In the topology shown in the figure, the following configurations are performed on RTA , RTB , RTC and RTD respectively

then no injection into zone 2

Question79: In the topology shown in the figure, the following configurations are performed on RTA, RTB, RTC and RTD respectively:
RTA-LoopBack0] ip address 1.1.1.1 255.255.255.255
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTA-ospf-1]import-route direct
RTB-LoopBack0] ip address 2.2.2.2 255.255.255.255
RTB]ospf 1
RTB-ospf-1]area 1
rtb-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
rtb-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTC-LoopBack0] ip address 3.3.3.3 255.255.255.255
rtc]ospf 1
RTC-ospf-1]area 0
RTC-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
rtc-ospf-1-area-0.0.0.0]area 2
RTC-ospf-1-area-0.0.0.2]nssa default-route-advertise no-summarRTC-ospf-1-area-0.0.0.2]network
30.0.0.0 0.0.0.255
RTC-ospf-1]import-route direct
RTD-LoopBack0] ip address 4.4.4.4 255.255.255.255
RTD]ospf 1
RTD-ospf-1]area 2
RTD-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
rtd-ospf-1-area-0.0.0.2]nssa
RTD-ospf-1]import-route direct
Which of the following routes may exist in the RTD's routing table _______.

Question80: As shown in the figure, RTA configures the address of each interface and enables dynamic NAT-PT. The configuration is as follows: Then, the IPv6 destination address of the DNS request sent by the PC in the figure is ______, and the IPv4 destination address of the DNS response returned by the DNS server is _ _____.

Question81: After executing the displaospf routing command on the MSR router RTA, the router output is as follows:

From the above output it can be judged that ______.

Question82: z Regarding the NSSA area of the OSPF protocol, the following statements are incorrect: _______

Question83: In the network shown in the figure, the BGP route learning among the routers is normal, and the BGP route attributes all take the default values.
After importing route 8.0.0.0 into BGP on RTA, if the next hop of route 8.0.0.0 on RTD is to point to RTB, the following adjustment methods are feasible again ______.

Question84: The BGP protocol is carried by _________, and its port number is _________

Question85: Use the displabgp peer command on the router RTA to display the following information. In the past day, the RTA and its neighbor 1.1.1.10 have not exchanged _______ packets.
<RTA> displabgp peer
Peer AS-num Ver ueued-Tx Msg-Rx Msg-Tx Up/Down State
-------------------------------------------------- -------------------------------------------------- -------------------------------
1.1.1.10 300 4 0 3 5 46:00:10 Established
2.2.2.11 100 4 0 0 0 Never Idle

Question86: In the network shown in the figure, RTA, RTB, RTC, RTD are in the same AS, and the IBGP connection as shown in the figure is established.

Which of the following statements about BGP reflector settings is true?

Question87: A BGP connection is established between the routers RTA and RTB, and routes are learned from each other. Both RTA and RTB use default timers.
If the link between routers is congested, so that the RTA cannot receive the Keepalive message sent by the RTB, which of the following consequences will occur?

Question88: r Regarding the stub area in the OSPF protocol, which of the following statements is _______

Question89: The command to configure manual route aggregation of RIP protocol on MSR router is ___________.

Question90: The networking is as shown in the figure, eBGP runs between AS 100, AS 200, and AS 300, and the ATM link between RTC and RTA, RTC and RTB is connected, and ATM OAM is not enabled. If the ATM link between RTC and RTA is interrupted, RTC How long does it take for routes on AS 100 to switch over to the ATM link between RTC and RTB?

Question91: The correct description of the relationship between the domain ( Domain ) and the area ( Area ) in IS-IS is ______ .

Question92: L is a network design engineer. In a certain network project, in order to reduce the complexity, the small L design network adopts a two-layer architecture, and the functions of the access layer are incorporated into the aggregation layer. In the design, considering that the core layer needs to have a fast convergence function, the aggregation layer performs route aggregation to reduce the number of routes. Which of the following routing protocols should L should use as the core layer routing protocol? (Choose one or more)

Question93: In the topology shown in the figure, execute the following command on the RTA:
RTA-ospf-1] default-route-advertise
The default route cannot be observed in the routing table of the RTC router, the possible reason is ______

Question94: As shown in the figure, PCA and PCB should communicate with each other, so _______ technology can be used between RTA and RTB.

Question95: The function of the OSPF Hello packet is _________.

Question96: Which of the following statements is true about filter-polic filters?

Question97: In the IS-IS network shown in the figure, after the routes of each router are stable, the IS-IS Level-1 routes learned by RTB through neighbors are ______.

Question98: It is known that the configuration of a router's PBR is as follows:
policy-based-route pbr_a permit node 10
if-match acl 3000
if-match packet-length 101 1000
apploutput-interface serial 2/0
Assuming the policy is successfully applied, how will the relevant traffic on this router be forwarded?

Question99: Which of the following statements about Route-polic is correct ______?

Question100: Which of the following statements is true about the BGP aggregation function?

Question101: Which of the following commands is correct to enable fast forwarding on a router?

Question102: In the BGP prioritization process, each attribute has different priorities.
Which of the following permutations are correct regarding the priority of these properties?

Question103: The networking is shown in the figure. RTB and RTC each advertise a 10.1.1.0/24 BGP route to RTA. The LP of the route advertised by RTB is set to 200, and the MED of the route advertised by RTC is set to 200.

Which BGP route should RTA prefer?

Question104: As shown in the figure is an OSI routing network, the route between RTB and RTE in the figure should be _______ route.

Question105: In the NSAP address 06.2400.0001.0020.0300.01, which part is the area address?

Question106: As shown in the figure, if PCA and PCB want to communicate with each other, ________ needs to be configured on the E0/0 interface of RTA.

Question107: Which of the following methods for route filtering are feasible?

Question108: In the topology shown in the figure, by executing the import-route direct command on the RTA, 192.168.0.0/24, 192.168.1.0/24, 192.168.2.0/24, 192.168.3.0/24 and 192.168.4.0/24 are injected. Five routes, and perform the following configurations on RTA, RTB and RTC respectively:
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 1.1.1.1 0.0.0.0
RTA-ospf-1-area-0.0.0.1]nssa
RTA-ospf-1]asbr-summar192.168.0.0 255.255.224.0 not -advertise
RTB]ospf 1
RTB-ospf-1]area 1
rtb-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]nssa default-route-advertise
RTB-ospf-1-area-0.0.0.1]area 0
rtb-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
rtc]ospf 1
RTC-ospf-1]area 0
rtc-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
RTC-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
Then the routes that cannot exist in the routing table of RTC are _____

Question109: A local area network has been running for 2 years (17,520 hours) and has been shut down for 6 hours due to equipment failure. Later, after the network was expanded and new equipment was added, it ran for another year (8,760 hours), and was shut down for another 4 hours due to software failure. Which of the following statements is true about the availability of this network (Avalabilit)?

Question110: Regarding the OSPF protocol, the following statement is wrong is _______.

Question111: IS-IS protocol packets are divided into IIH, CSNP, PSNP and LSP. These four types of packets are identified by ______.

Question112: as the picture shows.

The figure is an OSI routing network, the route between RTC and RTE in the figure should be _______ route.

Question113: Which of the following commands can be used to view all configured and enabled PBR information?

Question114: In the network as shown in the figure, dynamic routing protocols are not enabled between all routers, and only static routes can be configured. Then the correct configuration on the RTE should be _________.

Question115: The following features that enhance OSPF security are _______

Question116: In the following NSAP, the NET address that can be used as an integrated IS-IS is _______.

Question117: In the IS-IS network shown in the figure, each router is configured as follows.
RTA-isis-1] cost-ste wide
RTB-isis-1] cost-ste wide-compatible
RTC-isis-1]cost-ste narrow-compatible
Then it is ________ that can correctly calculate the link cost between each other.

Question118: There are 4 routes 172.16.0.0/24, 172.16.1.0/24, 172.16.2.0/24, 172.16.3.0/24 in the routing table.
For route aggregation, the correct post-aggregation route is __________.

Question119: The interface configuration of a router is as follows: According to the above information, it can be judged that the tunnel type of the Tunnel0 interface is ____.

Question120: The networking is as shown in the figure, RTA and RTB are located in AS 100, RTC, RTD, RTE are located in AS 200, AS 100 advertises BGP route 1.0.0.0/24 to AS 200, the main configuration of BGP of RTC and RTD is as follows, if RTE, RTD The interconnect link is interrupted, RTE accesses the 1.0.0.0/24 network segment, which WAN link is preferred?

Question121: Which of the following descriptions about BGP Peer Group is correct?

Question122: RTA and RTB run OSPF routing protocol, and both belong to the backbone area.
Which of the following methods can be used to advertise the directly connected route 192.168.1.0/24 of RTA to the OSPF routing domain?

Question123: In the IS-IS network as shown in the figure, the configuration of the authentication part of each router is as follows
RTA-Serial2/0]isis authentication-mode md5 h3c
RTB-isis-1]area-authentication-mode md5 h3c
RTC-isis-1]domain-authentication-mode md5 h3c
Then RTA and RTB______ synchronize LSDB, and RTB and RTC______ synchronize LSDB.

Question124: In the topology shown in the figure, the network layer is reachable between RTA and RTB, RTB and RTC.
Perform the following configurations on RTA , RTB and RTC respectively:
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 192.168.1.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 1.1.1.1 0.0.0.0
RTB]ospf 1
RTB-ospf-1]area 1
rtb-ospf-1-area-0.0.0.1]network 192.168.1.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
rtb-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
RTB-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255
rtc]ospf 1
RTC-ospf-1]area 0
rtc-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
RTC-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255
Which of the following statements is true ______

Question125: Which of the following statements about routing tables and FIB tables is true?

Question126: There are two detailed routes 50.50.1.0/24 and 50.50.2.0/24 in the BGP routing table. The AS_PATH is 100 200i and 100 300i respectively. Configure the ggregate 50.0.0.0 255.0.0.0 detail-suppressed in the BGP a view. What is the AS_PATH for route 50.0.0.0/8 ?

Question127: Regarding the comparison between OSPF protocol and RIPv2 protocol, the following statement is correct is _______.

Question128: In IS-IS, ______ is divided into two types: Level-1 and Level-2.

Question129: RTA and RTB are not directly interconnected, and are located in autonomous systems 100 and 200 respectively. The loopback0 address of RTA is 1.1.1.1, and the loopback address of RTB is 02.2.2.2.

If an EBGP neighbor relationship is established between RTA and RTB with loopback0, which of the following configurations is the correct configuration on RTA?

Question130: For the NSEL field in the NSAP address, the following description is correct ________.

Question131: In the IS-IS network shown in the figure, after the routes of each router are stable, the RTC learns ______ IS-IS Level-1 routes through neighbors.

Question132: LSAs of type ______ are definitely not injected into the OSPF TotallNSSA area.

Question133: In the following NSAP, the NET address that can be used as an integrated IS-IS is _______.

Question134: M In the network shown in the figure, the default next hop RTC of RTA, and the PBR configuration on RTA is as follows:
policy-based-route pbr_a permit node 10
if-match packet-length 64 100
applip-address next-hop 11.0.0.2
if-match packet-length 101 1000
applip-address next-hop 12.0.0.2
policy-based-route pbr_a dennode 20
Assuming the policy is successfully applied, how will the data flow on the RTA be forwarded?

Question135: After the various routers in the figure establish IS-IS neighbor relationships and achieve synchronization, the routers that have sent CSNP messages are ______.

Question136: The command to configure a silent interface on a router so that the router does not send OSPF protocol packets is _______.

Question137: The following belong to the OSPF special area are ______

Question138: As shown in the figure, RTA and RTB are connected by IPv6 Over IPv4 manual tunnel, and OSPFv3 is run on each IPv6 interface, then there are ______ IPv6 routes learned by OSPFv3 on RTA.

Question139: For the networking and applicable scenarios of IS-IS and OSPF, the correct one in the following description is ______.

Question140: The following is the information that a router executes displanatpt session all:
NATPT Session Info :
No IPV6Source IPV4Source Pro IPV6Destination IPV4Destination
1 96::309:201^57259 3.9.1.28^12288 ICMP 2009:11:30::309:201^0 3.9.2.1^0
From this information, we can know that NATPT is of type _______, and the access is initiated by _______.

Question141: As shown in the figure, RTA establishes an eBGP neighbor relationship with RTB and RTC respectively, and both RTB and RTC advertise a route N to RTA.
As shown in the figure, if you want RTA to give priority to the route advertised by RTB, and the route advertised by RTC as a backup, you need _____.

Question142: Regarding the NSSA area of the OSPF protocol, which of the following statements are correct _______

Question143: There are two detailed routes 10.10.1.0/24 and 10.10.2.0/24 in the BGP routing table. The user requests to advertise 10.10.1.0/24 and the aggregated route 10.10.0.0/16, but not 10.10.2.0/24. How to achieve ?

Question144: As shown, 4 routers are connected to one Ethernet link. The router interface is of broadcast network type, DIS election has been carried out and adjacency has been established.

If the RTA restarts at this time, after the restart is complete, the DIS on this link is ______

Question145: As shown in the figure, RTA, RTB, and RTC run OSPF, and the process number is 100; RTA, RTB, and RTD run OSPF process 200. The cost of all interconnected links is set to 10. Set the external route priority of OSPF 100 to 190 on RTA and RTB, and import an external route 172.16.1.0/24 to OSPF100 on RTC. The RTA is set to import the routes of OSPF100 to OSPF200, and the settings on RTB are to import the routes of OSPF200 to OSPF100 again. After the operation is stable, assume that the external route 172.16.1.0/24 imported on the RTC suddenly disappears.
According to the above scenario analysis, the following description is incorrect is ______.

Question146: LSAs of type ______ may be injected into the OSPF TotallStub area.

Question147: In the topology shown in the figure, the following configurations are performed on RTA and RTB respectively:
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB]ospf 1
RTB-ospf-1]area 1
rtb-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
If area 2 needs to be configured as an NSSA area, how should it be configured on RTC and RTD?

Question148: Route dampening 20 10 2000 4000 10000 is configured in BGP view, the current penalty value of route 10.10.1.0/24 is 5000, and the status is reachable. Will the route be available after 20 minutes?

Question149: Which of the following statements are true about the BGP aggregation function?

Question150: The three autonomous systems AS200 shown in the figure are the filtering ASs of AS100 and AS300, among which AS100 advertises the route 10.1.1.0/24 to AS200.
The main device configuration is as follows:
RTC:
bgp 100
network 10.1.1.0 255.255.255.0
undo snchronization
peer 200.1.2.2 as-number 200
peer 200.1.2.2 route-policCOM export
peer 200.1.2.2 advertise-communit# ,
route-policCOM permit node 10
applcommunit100:100
#
RTB
#
bgp 200
undo snchronization
peer 200.1.2.1 as-number 100
peer 200.1.3.2 as-number 300
peer 200.1.2.1 route-policCOM import
peer 200.1.3.2 advertise-communit#
route-policCOM permit node 10
if-match communit10
applcommunit200:200
#
ip communit-list 10 permit 100:100
Then on the RTC, the correct statement about the routing of 10.1.1.0/24 is ____.

Question151: As shown in the figure, the actual bandwidth of the Ethernet interface E1/0 of the MSR router is 10Mbps, and the actual link bandwidth of the serial port S2/0 is 64Kbps.

In order to prioritize the use of high-bandwidth links and achieve the purpose of route backup, which of the following solutions is the most reasonable?

Question152: Which of the following descriptions about route filtering is correct?

Question153: Below is the output of displaripng 1 route on a router, where those routes were learned from FE80::303 ?
Route Flags: A - Aging, S - Suppressed, G - Garbage-collect
-------------------------------------------------- --------------
Peer FE80::101 on Ethernet0/0
Dest 1::/64,
via FE80::101, cost 1, tag 0, A, 0 Sec
Peer FE80::303 on Ethernet0/0
Dest 3::/64,
via FE80::303, cost 1, tag 0, A, 29 Sec
Dest 3003::/64,
via FE80::303, cost 3, tag 0, A, 29 Sec
Peer FE80::404 on Ethernet0/0
Dest 4::/64,
via FE80::404, cost 1, tag 0, A, 13 Sec

Question154: In the IS-IS network shown in the figure, RTA and RTB are configured as follows:
RTA]isis
RTA-isis-1]is-level level-1
RTA-isis-1]network-entit01.1111.1111.1111.00
RTA-isis-1]interface serial 2/0
RTA-Serial2/0]isis enable 1
RTB]isis
RTB-isis-1]network-entit01.2222.2222.2222.00
RTB-isis-1]interface serial 1/0
RTB-Serial1/0]isis enable 1
RTB-Serial1/0]isis circuit-level level-1
Then between RTA and RTB ______

Question155: Company XZ required to build its network according to a modular enterprise network architecture. XZ Company has 1 R&D base in Shenzhen and Xi'an each; one office building in Beijing and Shanghai; offices with more than 50 people in 23 provincial capital cities; small offices with no more than 8 people in 200 small and medium-sized cities; More than 200 marketing and technical staff are typically traveling at any one time. Due to environmental and cost problems, some offices cannot connect to the headquarters through dedicated lines or packet-switched WAN connections. According to these circumstances, the network module that XZ company should have is ________.

Question156: Two MSR routers, MSR-1 and MSR-2, are interconnected on the 172.16.16.0/20 network segment. Now it is necessary to configure OSPF protocol on router MSR-1 to establish an adjacency relationship with MSR-2. Which of the following configurations is infeasible? (Select one or more) (Select one or more)

Question157: Running the command on the router and its display information is as follows:
<RTA>displaisis peer
Peer information for ISIS (1)
----------------------------
Stem Id: 2222.2222.2222
Interface: Tun2 Circuit Id:
State: Up HoldTime: 27s Tpe: L1 PRI: --
Stem Id: 3333.3333.3333
Interface: Tun3 Circuit Id:
State: Up HoldTime: 25s Tpe: L2 PRI: --
From the above information, we can know that RTA______.

Question158: Drag and drop

Question159: Regarding the Tpe3 LSA in the OSPF protocol, the correct statement is ______

Question160: Which of the following actions cannot be performed by the appl clause in a PBR configuration?

Question162: Which of the following statements about filters is __________.

Question163: In the broadcast network of OSPF, there are 4 routers RTA, RTB, RTC and RTD in the same network segment, their priorities are 2, 1, 1 and 0 respectively, and the Router IDs are 192.168.1.1, 192.168.2.1, 192.168 respectively. 3.1 and 192.168.4.1. If the OSPF protocol is enabled on these 4 routers at the same time, the BDR selected by OSPF is _____.

Question164: Which of the following statements is true regarding the comparison between OSPF and RIP?

Question165: The illustration is a BGP multi-exit enterprise network. Which of the following statements is true about BGP deployments in multi-egress enterprise networks:

Question166: In the network shown in the figure, the BGP route learning among the routers is normal, and the BGP route attributes all take the default values.
After the route 9.0.0.0 is imported into BGP on RTD, if the next hop of route 9.0.0.0 on RTA is to point to RTC, the following adjustment methods are feasible: ______

Question167: Execute displaip policy-based-route statistic interface ethernet1/0 on the router, and the output is as follows:
Interface Ethernet1/0 policbased routing statistics information :
policy-based-route : aaa
permit node 5
apploutput-interface serial1/0
Denied : 0 , Forwarded : 0
Total denied : 0 , forwarded : 0
According to the above output, it can be seen that ______.

Question168: In the OSPF protocol, the destination address used by the DR router to send update packets to all non-DR routers is _____.

Question169: It is known that the configuration of a router's PBR is as follows:
policy-based-route pbr_a permit node 10
if-match acl 3000
if-match packet-length 101 1000
apploutput-interface serial 2/0
Assuming the policy is successfully applied, how will the relevant traffic on this router be forwarded?

Question170: In the IS-IS network as shown in the figure, RTA, RTB and RTC are configured as follows:
RTA]isis
RTA-isis-1]is-level level-1
RTA-isis-1]network-entit01.1111.1111.1111.00
RTA-isis-1]interface serial 2/0
RTA-Serial2/0]isis enable 1
RTA-Serial2/0]isis cost 1
RTB]isis
RTB-isis-1]is-level level-1
RTB-isis-1]network-entit01.2222.2222.2222.00
RTB-isis-1]interface serial 1/0
RTB-Serial1/0]isis enable 1
RTB-Serial1/0]isis cost 1
RTB-Serial1/0]interface Ethernet 0/0
RTB-Ethernet0/0]isis enable 1
RTB-Ethernet0/0]isis cost 1
RTC]isis
RTC-isis-1]is-level level-1
RTC-isis-1]network-entit01.3333.3333.3333.00
RTC-isis-1]interface Ethernet 0/0
RTC-Ethernet0/0]isis enable 1
RTC-Ethernet0/0]isis cost 1
RTC-Ethernet0/0]interface Ethernet 0/1
RTC-Ethernet0/1]isis enable 1
RTC-Ethernet0/1]isis cost 1
After the routes of each router are stable, the cost of the IS-IS route 192.168.3.0/24 on the RTA is ______.

Question171: There are 4 routes 192.168.0.0/24, 192.168.1.0/24, 192.168.2.0/24, 192.168.3.0/24 in the routing table.
For route aggregation, the correct post-aggregation route is __________.

Question172: In the networking shown in the figure, the adjacency relationship between routers is established normally, and no route leakage is configured. Then RTA will forward the IP packet destined for 16.224.3.20 to ________.

Question173: Running the command on the router and its display information is as follows:
<RTA>displaisis brief
ISIS (1) Protocol Brief Information:
network-entit:
01.1111.1111.1111.00
is-level: level-1-2
cost-ste: narrow
preference: 15
Lsp-length receive: 1497
Lsp-length originate: level-1 1476
level-2 1476
maximum imported routes number: 10000
Timers:
lsp-max-age: 1200
lsp-refresh: 900
Interval between SPFs: 10
From the above information, we can know that RTA______.

Question174: In a certain network project, the customer considers that the network users may increase significantly in the future, so the network is required to have better scalability.
Which of the following measures can improve the scalability of the network?

Question175: If the BGP neighbor is established successfully, the neighbor status checked by the displabgp peer command is ______.

Question176: Which of the following elements are present in the routing table but not in the FIB table?

Question177: In the network shown in the figure, the BGP route learning among the routers is normal, and the BGP route attributes all take the default values. After importing route 8.0.0.0 into BGP on RTA, if the next hop of route 8.0.0.0 on RTD is to point to RTC, the following adjustment methods are feasible: ______.

Question178: As shown in the figure, RTA and RTB are connected by IPv6 Over IPv4 manual tunnel, and OSPFv3 is run on each IPv6 interface, then there are ______ IPv6 routes learned by OSPFv3 on RTA.

Question179: IS-IS routers communicate link status to each other. Information describing the state of the link is encapsulated in _______.

Question180: In the network shown in the figure, the BGP route learning among the routers is normal, and the BGP route attributes all take the default values.
After the route 9.0.0.0 is imported into BGP on RTD, if the next hop of route 9.0.0.0 on RTA is to point to RTC, the following adjustment methods are feasible: ______

Question181: As shown in the figure, RTB, RTC and RTA establish IBGP peers, and RTA is the reflector of RTB and RTC. Currently RTA and RTC are egress routers connecting to the Internet. In order to make RTB access the Internet through RTA or RTC, a default route is configured on RTA and RTC, and advertised using the network command.
Which of the following statements is correct is _____.

Question183: The following is the information that a router executes displanatpt address-mapping: From the above output, we can know that the host whose address is ________ accesses the host whose address is _______.

Question184: In IS-IS, what is the difference between Hello messages on P2P type links and LAN type links?

Question185: In the topology shown in the figure, the following configurations are performed on RTA, RTB, RTC and RTD respectively:
RTA-LoopBack0] ip address 1.1.1.1 255.255.255.255
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTA-ospf-1]import-route direct
RTA-ospf-1]default-route-advertise alwa
RTB-LoopBack0] ip address 2.2.2.2 255.255.255.255
RTB]ospf 1
RTB-ospf-1]area 1
rtb-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
rtb-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTC-LoopBack0] ip address 3.3.3.3 255.255.255.255
rtc]ospf 1
RTC-ospf-1]area 0
RTC-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
rtc-ospf-1-area-0.0.0.2]network 3.3.3.3 0.0.0.0
rtc-ospf-1-area-0.0.0.0]area 2
RTC-ospf-1-area-0.0.0.2]nssa no-summarRTC-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
RTD-LoopBack0] ip address 4.4.4.4 255.255.255.255
RTD]ospf 1
RTD-ospf-1]area 2
RTD-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
rtd-ospf-1-area-0.0.0.2]nssa
RTD-ospf-1]import-route direct
Which of the following routes _______ cannot exist in the RTD's routing table.