EMT Practice Test

1. Question Content...

---

Question1: A customer’s MSR router is connected to the Internet through the WAN interface S1/0, and to the office network through the LAN interface GE0/0. At present, office network users can access the Internet normally.
Add the following ACL configuration on the router:
firewall enable
firewall default deny
# acl number 3003
rule 0 deny icmp
rule 5 permit tcp destination-port eq 20
#
interface GigabitEthernet0/0
firewall packet-filter 3000 inbound
firewall packet-filter 3000 outbound
So ______ .

Question2: The user can use the ______ command to view the history commands.

Question3: In the switching network shown in the figure, all switches have enabled the STP protocol.

SWA was selected as the root bridge. According to the information in the figure, the ______ port should be set to the Forwarding state. (Multiple choice)

Question4: On the MSR router, by default, the configuration file is suffixed with ______.

Question5: A company's MSR router plans to dial-up to the Internet through ISDN DCC, and the router has the following configuration:
[H3C]dialer-rule 1 ip deny
[H3C]firewall default permit
This dialer access control list dialer-rule 1 has been quoted under the dialer interface, so which of the following statements about dialing are wrong?

Question6: On the MSR router, if a certain file has been set as the startup file, you can use the ______ command to check whether the setting is correct.

Question7: A network connection is like:
HostA----GE0/0--MSR-1--S1/0---------S1/0--MSR-2--GE0/0----HostB
The two MSR routers MSR1 and MSR2 are interconnected back-to-back through their S1/0 interfaces, and their GigabitEthernet0/0 interfaces are respectively connected to the client hosts HostA and HostB. HostA can communicate with HostB in the current network by configuring the IP address and routing.
The following configuration has been added to MSR-2:
firewall enable
acl number 3000
rule 0 deny tcp destination-port eq telnet
interface Serial1/0
link-protocol ppp
ip address 1.1.1.2 255.255.255.252
firewall packet-filter 3000 inbound
firewall packet-filter 3000 outbound
interface GigabitEthernet0/0
ip address 10.1.1.1 255.255.255.0
So which of the following statements are correct? (multiple choice)

Question8: The following statement about STP is correct. ______. (Multiple choice)

Question9: Which of the following statements about Ethernet is correct is ________. (Multiple choice)

Question10: The network administrator of a certain enterprise needs to set a subnet mask to divide the class C network 211.110.10.0 that he is responsible for into at least 8 subnets. How many subnet masks can be used for division? (multiple choice)

Question11: The correct sequence of the steps in the startup process of detecting the router system is _________. (Fill in the code of each step one by one, there can be no spaces in between, such as: ABCD)

Question12: In the routing table of an MSR router, which of the following sources of routes may be included? (multiple choice)

Question13: SSH uses the TCP port number ______ by default.

Question14: An empty-configured MSR router connects to the frame relay network through interface S1/0.
To achieve connectivity by configuring the frame relay sub-interface on this router, the correct description of the frame relay sub-interface is ______. (Multiple choice)

Question15: Which of the following advantages does the OSI reference model have? (multiple choice)

Question16: The following devices working at the data link layer of the OSI reference model are ______.

Question17: The subnet mask of IP address 132.119.100.200 is 255.255.255.240, so the broadcast address of its subnet is ______.

Question18: On the MSR router, use the ______ command to view the current running version of the device.

Question19: The main link of the WAN of a company's MSR router is a synchronous and asynchronous serial port, which is connected to the operator's network through a V.35 cable; the router also uses an ISDN BRI interface as a backup link.
Regarding the line bandwidth, which of the following statements are correct? (multiple choice)

Question20: Common FTP file transfer types include ______. (Multiple choice)

Question21: In the switching network shown in the figure, all switches have enabled the STP protocol.

According to the information in the figure, which switch will be selected as the root bridge?

Question22: When viewing the configuration, if there are many configuration commands and one screen cannot be displayed completely, after displaying one screen, you can press ___ to display the next page.

Question23: Which of the following statements about CSMA/CD is correct is ______. (Multiple choice)

Question24: It is required to set a subnet mask to divide a Class B network 172.16.0.0 into 30 subnets, and each subnet should contain as many hosts as possible, so the subnet mask should be _____. (Dotted decimal format) slightly

Question25: After turning on the debugging, you can use the ______ command to turn off the debugging.

Question26: The command to start the spanning tree protocol on the switch is ____.

Question27: The customer's MSR router is connected to the operator's network through the S0/0 interface and to the internal network through the G1/0 interface. Currently, the network is operating normally, and customers can normally access all services on the Internet and Intranet through the router. Now the following configuration has been added to the MSR: ★ The original answer ABCD firewall enable firewall default deny acl number 3002 rule 0 deny tcp interface Serial0/0 link-protocol ppp firewall packet-filter 3002 inbound firewall packet-filter 3002 outbound So which of the following applications are possible Not affected _____.

Question28: The router S0/0 interface is connected to the network through frame relay, and the following interface information can be seen on this router:
[MSR]display interface Serial 0/0
Serial0/0 current state: UP
Line protocol current state: UP
Internet Address is 3.3.3.1/24 Primary
Link layer protocol is FR IETF
LMI DLCI is 0, LMI type is Q.933a, frame relay DTE
LMI status enquiry sent 91, LMI status received 69
LMI status timeout 22, LMI message discarded 1
Then you know ______. (Multiple choice)

Question29: The role of link aggregation is ______.

Question30: The customer's router is connected to the operator's network through DCC, so which of the following interfaces on the router can realize DCC dial-up?

Question31: The hub (Hub) works in the ______ of the OSI reference model.

Question32: The two MSR routers are connected as shown in the figure.

OSPF is currently running between the two routers. Now that you need to configure an ACL on RTA to prevent the establishment of OSPF neighbor relationship between RTA and RTB, which of the following ACLs is feasible to apply in the outbound direction of the GE0/0 interface of RTA?

Question33: According to user requirements, the administrator needs to configure the switch SWA port Ethernet1/0/1 as a Trunk port.
Which of the following commands is the correct configuration command?

Question34: The switch SWA port Ethernet1/0/1 was originally an Access port type, and now it needs to be configured as a Hybrid port type. Which of the following commands is the correct configuration command?

Question35: For the understanding of packet switching, the correct one of the following statements is ______. (Multiple choice)

Question36: The three MSR routers are connected as shown in the figure. All three routers belong to OSPF Area 0, and at the same time, the interconnection network segments of the three routers are advertised in Area 0 through the network command. On RTC, the network segment NET-1 is also published in OSPF Area 0 through the network command. The OSPF Cost between the three routers is shown in the figure.

At present, the neighbor status of the three routers is stable, so ______. (Multiple choice)

Question37: An MSR router is connected to the Internet through the S1/0 interface, and the GE0/0 interface is connected to the LAN host. The network segment of the LAN host is 10.0.0.0/8, and there is an FTP server with an IP address of 202.102.2.1 on the Internet.
By configuring the IP address and routing on the router, the hosts in the current LAN can access the Internet normally (including the public network FTP server). Now the following configuration is added to the router:
firewall enable
acl number 3000
rule 0 deny tcp source 10.1.1.1 0 source-port eq ftp destination 202.102.2.1 0
Then apply this ACL to the inbound and outbound directions of the GE0/0 interface, then which of the following intentions can this ACL achieve?

Question38: The customer router MSR-1 configures the MP to connect to the MSR-2 through interfaces S0/0 and S0/1. Currently, the MP is running normally. At the same time, the two routers run RIP to complete the route learning of the LAN segment of the two routers. Then the Metric value of the RIP route learned on MSR-1 may be ______. (Multiple choice)

Question39: The command to configure the interface Ethernet1/0/1 on the switch SWA as an edge port is ______.

Question40: An MSR router needs to learn routing information through RIP, and the following configuration is made on the router: rip 1 network 0.0.0.0 Then the correct explanation for this configuration is ______.

Question41: The two empty-configured MSR routers MSR-1 and MSR-2 are directly connected through their respective GE0/0 interfaces, and the IP addresses on GE0/0 of MSR-1 and MSR-2 are 10.1.1.1/24 and 10.1.1.2. /24, there is IP reachability between two GE0/0 interfaces.
Then added the following OSPF configurations on the two routers:
MSR-1:
[MSR-1-ospf-1] area 0.0.0.255
[MSR-1-ospf-1-area-0.0.0.255] network 10.1.1.0 0.0.0.255
MSR-2:
[MSR-2-ospf-1] area 255
[MSR-2-ospf-1-area-0.0.0.255] network 10.1.1.0 0.255.255.255
Then the correct description of the above configuration is _____. (Multiple choice)

Question42: The interface information of a router is displayed as follows:
Serial0/0 current state: UP
Line protocol current state: DOWN
Physical layer is synchronous, Baudrate is 64000 bps
Interface is DCE, Cable type is V35, Clock mode is DCECLK
What kind of protocol may be encapsulated or run on this interface?

Question43: Which of the following options are the features of 802.1x authentication based on MAC address? (multiple choice)

Question44: The transport layer protocol that DNS can use is ______.

Question45: On the MSR router, if you want to completely delete an obsolete file in the recycle bin, you can execute the ______ command.

Question46: The customer's network connection looks like:
HostA------MSR-1------MSR-2--------MSR-3------HostB
The IP address configuration has been completed on all devices. To realize that HostA can access HostB, which of the following statements is correct regarding routing configuration? (multiple choice)

Question47: I see the following information on an MSR router running RIP:
<MSR>display rip
Public VPN-instance name:
RIP process: 1
RIP version: 2
Preference: 100
Checkzero: Enabled
Default-cost: 0
Summary: Enabled
Hostroutes: Enabled
Maximum number of balanced paths: 8
Then from the displayed information, ______ can be analyzed.

Question48: If you want to check which VLANs currently exist on the switch, which one of the following commands is required?

Question49: The correct statement about the IP address below is ______. (Multiple choice)

Question50: According to the different sources, the routes in the routing table are usually divided into the following categories? (multiple choice)

Question51: After RIP learns a route from an interface, it sets the metric of the route to infinity (16) and sends it back to the neighbor router from the original interface. This method of avoiding loops is ______.

Question52: The functions implemented by the IPv6 Neighbor Discovery Protocol include _____. (Multiple choice)

Question53: As shown in the figure, the three MSR routers run OSPF and RIP respectively.

Now that the OSPF neighbor status between RTA and RTB is stable, and the RIPv2 between RTB and RTC is also working normally, then within 40 minutes from this moment, ______. (Multiple choice)

Question54: The three MSR routers are connected as shown in the figure.

All three routers belong to OSPF Area 0, and at the same time, the interconnection network segments of the three routers are advertised in Area 0 through the network command. On RTC, the network segment NET-1 is also published in OSPF Area 0 through the network command. The OSPF Cost between the three routers is shown in the figure.
At present, the neighbor status of the three routers is stable, so ______. (Multiple choice)

Question55: The Layer 2 Ethernet switch searches the MAC address table for an entry that matches the destination MAC address of the frame, thereby forwarding the frame from the corresponding interface. If the search fails, the switch will ______.

Question56: To configure Trunk on the link between Ethernet switches and allow the transmission of VLAN 10 and VLAN 20 information, you must configure ______ on the switch.

Question57: The equipment that should be used in the box in the figure is ______.

Question58: Which of the following statements about the OSPF area in the network (Area) is correct? (multiple choice)

Question59: The TFTP protocol is a protocol based on ______.

Question60: Which of the following statements about HDLC is correct is ______. (Multiple choice question)

Question61: The following routing information is seen on the MSR router running RIP:
<MSR>display ip routing-table 6.6.6.6
Routing Table: Public
Summary Count: 2
Destination/Mask Proto Pre Cost NextHop Interface
6.6.0/24 RIP 100 1 100.1.1.1 GE0/0
6.0.0.0/8 Static 60 0 100.1.1.1 GE0/0
At this time, the router receives a data packet with a destination address of 6.6.6.6, then ______.

Question62: The two branches of XYZ company are located in different regions, and a wide area network connection must be established between them. According to the plan, the WAN adopts the PPP protocol. Considering network security, it is required that password-type message information is not allowed to be transmitted in clear text on the network. Then which PPP authentication protocol should be adopted?

Question63: It is the ______ of the OSI reference model that provides end-to-end reliable data transmission and flow control.

Question64: The two routers MSR-1 and MSR-2 are interconnected through GigabitEthernet0/0, and RIPv2 is running between the two routers. Now, the GigabitEthernet0/0 interface of one of the routers MSR-1 wants to only send RIP packets instead of Accept RIP protocol message, then which of the following implementation methods are feasible?

Question65: The MSR router sends 5 packets by default in the last ping. If you want to specify the number of packets to be sent, you can use the ______ parameter.

Question66: The following statement about the upgrade of H3C network equipment is correct ______. (Multiple choice)

Question67: The well-known port number of the transport layer protocol used by DNS is ______.

Question68: According to the different ways the switch processes VLAN data frames, the port types of H3C Ethernet switches are divided into ______. (Multiple choice)

Question69: On the MSR router, if you want to download files from FTP Server, you should use the ______ command in the FTP command.

Question70: The Ethernet port Ethernet1/0 of the customer router MSR-1 is configured as follows:
interface Ethernet0/0
ip address 192.168.0.1 255.255.255.0
This interface is connected to a three-layer switch, and this three-layer switch is where the default gateway of the network segment 192.168.7.0/24~192.168.83.0/24 of the customer's office network is located.
Now the customer requires that an ACL be configured on the MSR-1 to prohibit all users on the office network from initiating Telnet to the address 192.168.0.1 of the MSR-1, so which of the following configurations is correct?

Question71: A large financial network needs to use multiple WAN protocols and routing protocols. To enhance network security, it is hoped that the selected protocol has security measures such as authentication, encryption, and access control.
Then when choosing the WAN protocol and routing protocol, which of the following protocols may meet the requirements? (multiple choice)

Question72: The following statement about the upgrade of H3C network equipment is correct ______. (Multiple choice)

Question73: The WAN interface S0/0 of the customer's two routers MSR-1 and MSR-2 uses the PPP protocol, and the routers learn the routes from each other by configuring RIP. The following configuration is available on MSR-1: rip 1 network 0.0.0.0 import -route static # ip route-static 0.0.0.0 0.0.0.0 Serial0/0 Then the wrong explanation about this configuration is ______.

Question74: A user wants to use WAN access. Because the average business volume is very small, the average bandwidth is only 50Kbps, but the real-time requirements are very high. The user's budget is very limited, so the cost of use must be considered. The most suitable access method is ______.

Question75: In the switching network shown in the figure, all switches have enabled the STP protocol.

According to the information in the figure, which switch will be selected as the root bridge?

Question76: The IP address 112.1.1.1 corresponds to the network address of the natural classification network segment.

Question77: In the process of establishing a PPP session, when the physical layer is unavailable, the PPP link is in the ______ phase.

Question78: The two routers MSR-1 and MSR-2 complete dynamic routing learning through RIP, and you can see the following debug information on MSR-1:
*Nov 26 02:20:25:353 2008 H3C RM/6/RMDEBUG: RIP 1: Sending v2 request on Serial 0/0 from 3.3.3.3
*Nov 26 02:20:25:353 2008 H3C RM/6/RMDEBUG: RIP 1: Sending request on interface Serial0/0 from 3.3.3.3 to 224.0.0.9
*Nov 26 02:20:25:400 2008 H3C RM/6/RMDEBUG: RIP 1: Receiving v2 request on Serial0/0 from 3.3.3.1
According to the debug information, ______ can be inferred. (Multiple choice)

Question79: The network environment is shown in the figure. Do the following NAT configuration on router RTA:

[RTA]acl number 2000
[RTA-acl-basic-2000]rule 0 permit source 100.0.0.0 0.0.0.255
[RTA]nat address-group 1 200.76.28.11 200.76.28.20
[RTA]interface Ethernet0/1
[RTA-Ethernet0/1]nat outbound 2000 address-group 1 no-pat
After configuration, Client_A and Client_B access Server at the same time, then the content of RTA's NAT table may be ______ at this time.

Question80: The correct statement below is ______. (Multiple choice)

Question81: Divide a class B network segment into subnets. If the subnet mask is 19 bits, then the maximum number of hosts that can be accommodated in each subnet is ______. (Please fill in Arabic numerals)

Question82: Execute display ip routing-table on the router, then the next hop interface displayed in the routing table may be ______.

Question83: The customer's network connection looks like:
HostA----GE0/0--MSR-1--S1/0-----WAN-----S1/0--MSR-2--GE0/0----HostB
Both routers are factory default configuration.
The four interfaces of the router are configured with correct IP addresses. The two hosts HostA and HostB are configured with IP addresses and gateways. Assuming that all physical connections are normal, then ______. (Multiple choice)

Question84: The following description about routing is correct ______. (Multiple choice)

Question85: The IPv4 address includes the network part, host part, subnet mask, etc. Correspondingly, the IPv6 address contains ______.

Question86: Xiao L is a senior network technical engineer. He wants to design a relatively perfect IGP routing protocol independently. He hopes that the routing protocol has a great improvement in Cost. Then, when designing the cost of the routing protocol, which of the following factors should be considered? (Multiple choice)

Question87: Which of the following statements about optical fiber are correct? (multiple choice)

Question88: The broadcast address of the natural classification network segment corresponding to the IP address 125.1.1.1 is ____________.

Question89: PPP has to go through a series of negotiation process before establishing the link, the correct negotiation sequence is ___. (Fill in the code of each step one by one, there can be no spaces in between, such as: ABC)

Question90: A network environment looks like:
HostA----GE0/0--MSR-1--S1/0-----Frame Relay----S1/0--MSR-2--GE0/0----HostB
Among them, two routers MSR-1 and MSR-2 connect to the frame relay network through S1/0 respectively. Configure IP addresses 3.3.3.1/24 and DLCI 31 on the S1/0 interface of MSR-1, and configure IP addresses 3.3.3.2/24 and DLCI 82 on the S1/0 interface of MSR-2. The physical connection is completely normal, and the other default configurations are the same.
So which of the following statements are wrong? (multiple choice)

Question91: Regarding the compressed expression of the IPv6 address 2001:0410:0000:0001:0000:0001:0000:45FF, which of the following is correct? (multiple choice)

Question92: In the process of establishing a PPP session, when authentication is set and the authentication is passed, the PPP link enters the ______ phase.

Question93: The customer's network connection is shown in the figure.

Among them, the IP addresses of RTA, RTB, and RTC are respectively 2.2.2.1/24, 2.2.2.2/24, 2.2.2.3/24. To realize the intercommunication between RTA, RTB and RTC, configure the following frame relay MAP on RTA correct ?

Question94: Divide a class C network segment into subnets. If the subnet mask is 28 bits, then the maximum number of hosts that can be accommodated in each subnet is ____. (Please fill in Arabic numerals)

Question95: The following statement about frame relay address mapping is correct ______. (Multiple choice)

Question96: On the MSR router, you can see the following display in the routing table:
Destination/Mask Proto Pre Cost NextHop Interface
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
192.168.96.0/24 Static 60 0 192.168.120.153 S6/0
Then the correct description of the route with the destination address of 192.168.96.0/24 is ______.

Question97: The information displayed by the display fr map-info command is as follows:
[RTA]display fr map-info
Map Statistics for interface Serial1/0 (DTE)
DLCI 30, Point-to-Point DLCI, Serial1/0.1
created at: 2008/09/17 17:46:59, status: ACTIVE
DLCI 40, Point-to-Point DLCI, Serial1/0.2
created at: 2008/09/17 17:48:22, status: INACTIVE
The correct statement below is ______.

Question98: The IP address of a private network device A is 192.168.1.1/24, and its corresponding public network IP address is 2.2.2.1; the IP address of public network device B is 2.2.2.5. If you want B to be able to ping A, which of the following configurations can be used on the NAT device?

Question99: The RIP routing protocol has a timer, which defines the elapsed time for a route from the metric value to 16 until it is deleted from the routing table, then ______.

Question100: On MSR routers, the -m parameter of the ping command specifies the time interval for sending ICMP Echo Request packets, ranging from 1 to 65535 in milliseconds, and its default value is ______ milliseconds.

Question101: The rate of the D channel in ISDN PRI is ______.

Question102: The user router S0/0 is connected to the frame relay network, and the following information is displayed on the interface of the router: Serial1/1 current state:UP Line protocol current state:DOWN Internet Address is 3.3.3.2/24 The protocol state of the interface is DOWN, Then analyze ______ accordingly.

Question103: The XYZ company administrator is subnetting the office network. It is required to divide a Class C network segment into several equal-sized subnets for office users in various departments, but there is no limit to the size of the subnets. There are ____ division methods. (Please fill in Arabic numerals)

Question104: After configuring NAPT, it is found that some internal network addresses can always ping the external network, while others cannot. The possible reasons are ______.

Question105: The routers MSR-1 and MSR-2 are interconnected through their respective GigabitEthernet0/0, and RIP is running between the two routers. At present, RIP has correctly completed remote routing learning. Now you can see the following in the routing table of MSR-1 The routing information:
Destination/Mask Proto Pre Cost NextHop Interface
2.0.0.0/24 RIP 100 15 100.1.1.1 GE0/0
6.0.0.0/8 RIP 100 1 100.1.1.1 GE0/0
Then based on this information, ______ can be inferred.

Question106: During the establishment of the TCP connection as shown in the figure, the Y part of SYN should be filled with ________.

Question107: There are many kinds of WAN interfaces. The following description of the WAN interface is wrong.

Question108: The two WAN interfaces S1/0 and S1/1 of the router MSR-1 are connected to the routers MSR-2 and MSR-3 respectively.
At the same time, the Ethernet port of MSR-1 is connected to MSR-4. All four routers have run the RIP protocol and completed routing learning correctly. All routers have started all the features of RIP to prevent loops. At this time, it is found that the MSR -2 The network 192.168.0.0 fails, then ______ after a certain period of time. (Multiple choice)

Question109: On the MSR router, if you want to specify the source address of the message sent during the ping operation, you should use the ______ parameter.

Question110: Which of the following descriptions of circuit switching and packet switching is correct is ______. (Multiple choice)

Question111: The customer's network connection looks like:
HostA----GE0/0--MSR-1--S1/0-----WAN-----S1/0--MSR-2--GE0/0----HostB
The two MSR routers are interconnected through the WAN, and the physical connection is now normal. The address of interface S1/0 of MSR-1 is 3.3.3.1/30, and the address of interface S1/0 of MSR-2 is 3.3.3.2/30. Now the following three static routes are configured on MSR-1:
ip route-static 192.168.1.0 255.255.255.0 3.3.3.2
ip route-static 192.168.2.0 255.255.255.0 3.3.3.2
ip route-static 192.168.0.0 255.255.255.0 3.3.3.2
The 192.168.0.0/22 ​​subnet is the local area network segment where the host HostB is located.
So which of the following descriptions are correct? (multiple choice)

Question112: The customer's routers MSR-1 and MSR-2 are interconnected through their GigabitEthernet0/0, and RIP is running between the two routers. RIP has correctly completed remote routing learning. The following configuration is added on MSR-1: firewall enable acl number 3000 rule 0 deny udp destination-port eq 520 rule 5 permit ip and this ACL is applied to the inbound direction of MSR-1 interface GigabitEthernet0/0. So ______ .

Question113: Use the ______ command on the MSR router to turn off the information center function.

Question114: The two routers of the customer are connected back to back by V.35 cables, and one of the routers has the following interface information: [MSR-Serial0/0]display interface Serial 0/0
Serial0/0 current state: UP
Line protocol current state: UP
Description: Serial6/0 Interface
The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet Address is 6.6.6.1/30 Primary
Link layer protocol is PPP
LCP opened, IPCP opened
From the above information, you can know ______. (Multiple choice)

Question115: Two empty-configured MSR routers are interconnected back-to-back through their respective GE0/0 interfaces, and their interconnection network segment is 192.168.1.0/30. After the IP addresses are correctly configured, the GE0/0 interfaces of the two routers can communicate with each other. Now the following OSPF configurations are added to the two routers:
ospf 1
area 0.0.0.1
network 192.168.1.0 0.0.0.3
So which of the following statements are correct?

Question116: After opening the console to monitor system information, use the ______ command to turn on the screen output of debugging information.

Question117: The three MSR routers RTA, RTB, and RTC are connected to the same frame relay network through their respective S1/0 interfaces. This frame relay network can provide enough PVC resources. As a network engineer, you need to assign IP addresses to these frame relay interfaces.
Which of the following statements is incorrect?

Question118: As shown in the figure, four MSR routers are connected via Ethernet and serial interfaces, and OSPF is running in the network at the same time. The area is divided as shown in the figure.

It is known that the OSPF Cost value of all interconnection links is the same, except that the link between RTB and RTC is PPP, the other interconnection links are all Ethernet. So ______ . (Multiple choice)

Question119: For RIPv1 and RIPv2 running on MSR routers, which of the following statements are correct? (multiple choice)

Question120: If all 0 and all 1 subnets can be used as effective subnets, the class C address 192.168.1.0 is subnetted with a 26-bit subnet mask, and the number of effective subnets that can be divided is ______.

Question121: To configure a static route on the router. It is known that the destination address is 192.168.1.0, the mask is 20 bits, the outgoing interface is GigabitEthernet0/0, and the outgoing interface IP address is 10.10.202.1, so which of the following configurations is correct?

Question122: Two empty-configured MSR routers are directly connected back-to-back through their respective WAN Serial1/0 interfaces, and their interconnection network segment is 192.0.0.0/24.
At the same time, the two routers are connected to their respective LAN segment users through their respective GigabitEthernet0/0:
HostA----GE0/0--MSR-1--S1/0---------S1/0--MSR-2--GE0/0----HostB
Configure RIPv1 on the two routers, and now both routers have learned the RIP route of the opposite LAN segment. So which of the following statements are correct?

Question123: The basic process of Layer 2 forwarding of an Ethernet switch includes ______.

Question124: The two empty-configured MSR routers MSR-1 and MSR-2 are interconnected through their respective GE0/0, and their IP addresses are 192.168.1.2/30 and 192.168.1.1/30 respectively.
Then add the following configuration on both routers:
[MSR-ospf-1]area 0 [MSR-ospf-1-area-0.0.0.0]network 192.168.1.1 0.0.0.3
The OSPF Router IDs of the two routers are their respective GE0/0 interface addresses, and there is no other configuration on the two routers.
Then, to ensure that MSR-1 becomes OSPF DR in the next election, which of the following configurations needs to be added? (multiple choice)

Question125: There is an entry in the router's routing table for a route with a network segment of 10.168.100.0/24, with a Cost of 15 and a Preference of 100. Then which of the following statements about this route are correct?

Question126: In the network environment as shown in the figure, two routers are connected back to back by serial ports, and the rate of the interconnection link should be set to 2Mbps. The correct statement below is ______.

Question127: Which of the following is the correct IPv6 address? (multiple choice)

Question128: Two empty-configured MSR routers are directly connected back-to-back through their respective WAN Serial1/0 interfaces, and their interconnection network segment is 192.0.0.0/24.
At the same time, the two routers are connected to their respective LAN segment users through their respective GigabitEthernet0/0: HostA----GE0/0--MSR-1--S1/0---------S1/0-- MSR-2--GE0/0----HostB
Configure RIPv1 on both routers. Now both routers have learned the RIP route of the opposite LAN segment.
So which of the following statements are correct?

Question129: The IP protocol corresponds to layer ______ of the OSI reference model.

Question130: The WAN links of the customer's two routers MSR-1 and MSR-2 use the PPP protocol, and MSR-1 is required as the primary verifier to verify MSR-2 through CHAP. Then which of the following configurations may be required for MSR-2? (Multiple choice)

Question131: If you want the current configuration to continue to take effect after the system restarts, you should use the _______ command to save the current configuration to the configuration file before restarting the device. (Please write full order)

Question132: An MSR router is connected to the Internet through the WAN interface, and the following interface display information is seen on the MSR router:
Mp-group1 current state: UP
Line protocol current state: UP
Description: Mp-group1 Interface
The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet Address is 172.16.1.100/24 ​​Primary
Link layer protocol is PPP
LCP opened, MP opened, IPCP opened
Physical is MP, baudrate: 64000 bps
Then the correct analysis of the information displayed above is _____. (Multiple choice question)

Question133: The customer's network structure is shown in the figure.

To achieve the following requirements:
1. Host C and Host B visit each other
2. Host B and Host A cannot visit each other
3. Host A and Host C cannot visit each other
So ______ . (Multiple choice)

Question134: The number of available host addresses contained in the natural classification network segment corresponding to the IP address 165.110.20.67 is. (Please fill in Arabic numerals)

Question135: On the MSR router, I hope to adjust the Keepalive packet time of the HDLC protocol to 20 seconds. The correct configuration is ______.

Question136: Use the ______ command to configure static routes on the MSR router.

Question137: An empty-configured MSR router is connected to the local LAN user through the GE0/0 interface, and directly connected to the remote router through the S1/0 interface. The IP addresses of GE0/0 interface and S1/0 interface are 10.1.1.1/24 and 172.16.1.1/30 respectively.
In order to ensure the intercommunication with remote LAN users, the following routes are configured on the MSR:
[MSR] ip route 10.20.0.0 255.255.255.0 s1/0
After the configuration, the MSR receives the data packet sent to the destination address 10.20.0.254/24. After the static route is found in the routing table, how will the MSR deal with the data packet next?

Question138: If you want to achieve the entire network interoperability, as shown in the figure, there are 4 ways to divide the OSPF area, which is reasonable? (multiple choice)

Question139: The TCP protocol uses ______ to distinguish different connections.

Question140: NAPT mainly converts the ______ information of the data packet? (multiple choice)

Question141: On the MSR router, use the ______ command to configure the NAT address pool.

Question142: After executing the display stp command on the switch SWA, the switch output is as follows: [
SWA]display stp
-------[CIST Global Info][Mode MSTP]-------
CIST Bridge: 32768.000f-e23e-f9b0
Bridge Times :Hello 2s MaxAge 20s FwDly 15s MaxHop 20
It can be judged from the above output ______.

Question143: UDP belongs to the ______ of the OSI reference model.

Question144: The two MSR routers are interconnected back-to-back through their respective Serial1/0 interfaces, and the PPP link layer protocol is encapsulated on the WAN interface. The correct statement about the PPP link in this network is ______. (Multiple choice)

Question145: The IPv6 link-local address belongs to the ______ address type.

Question146: The WAN links of the customer's two routers MSR-1 and MSR-2 use the PPP protocol. At the same time, MSR-1 is required as the main verifier to verify MSR-2 through PAP. Then what configuration is required on MSR-2?

Question147: The customer's network connection looks like:
HostA----GE0/0--MSR-1--S1/0-----WAN----S1/0--MSR-2--GE0/0----HostB
On the WAN interface S1/0 of the two routers MSR-1 and MSR-2, only the PPP protocol is encapsulated and the IP address is configured. Currently, HostA and HostB can ping each other. Add the command ppp authentication-mode chap under MSR-1 interface S1/0, and then execute shutdown and undo shutdown operations on S1/0 of MSR-1.
So ______ . (Multiple choice)

Question148: Which of the following is the correct IPv6 address? (multiple choice)

Question149: Which of the following statements about IP addresses are correct is ______. (Multiple choice)

Question150: During the establishment of the TCP connection as shown in the figure, the Z part of the SYN should be filled with ________.

Question151: A Layer 3 switch is connected to the GigabitEthernet0/0 interface of the customer's router MSR-1, and this Layer 3 switch is the default gateway for multiple segments of the customer's office network. At the same time, the WAN interface of the router is connected to the Internet, and there is a DNS server on the Internet to provide services for hosts in the customer's local area network. The customer's office network can access the Internet normally. Now the following ACL is applied in the inbound direction of GigabitEthernet0/0 of MSR-1 :
firewall enable
acl number 3006
rule 0 deny tcp source 192.168.1.0 0.0.0.255
rule 5 permit ip
So ______ . (Multiple choice)