EMT Practice Test

1. Question Content...

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Question1: acl number 2000
rule 15 permit source 225.0.0.0 0.0.0.255
#
interface Ethernet6/1/1
ip address 40.1.1.4 255.255.255.0
igmp version 3
igmp group-policy 2000
igmp enable
pim sm
#
The preceding are partial router configurations. Which of the following behaviors does Ethernet
6/1/1 perform after receiving Internet Group Management Protocol Version 2 (IGMPv2) Report messages for multicast groups 225.0.0.1 and 225.0.1.1?

Question2: Exhibit:

As shown in the figure, RTA and have one BGP session. To detect fault fast, the BFD for BGP feature needs to be configured on RTA and RTB. BGP-related configurations are as follows:

The only Ethernet link between RTA and RTB becomes faulty when the BGP neighbor session is in ESTABLISHED state and the BFD session is in the UP state. Which statements is true? (Note: BFD works in asynchronous mode)

Question3: Exhibit:

RTA is an edge route of the MPLS backbone network. It provides the access for users under layer 2 switches and differentiates user by subinterface. User access VALN 100 and has subscribed to the His ViIP , and services. According to 802 1p priorities, the value 0 indicates the HIS service, 1 indicates the VoIp service and 4 indicate the IPTV service. The DiffSerc model is deployed in E-LSP mode on the MPLS network, And the STC is configured for subinterface on the access side of RTA (the qos phb disable command is not configured). Outgoing on the traffic on the G1/0/0.1 suninterface involves the His VoIP, and services on the access side of RTA.
Which statements about EXP about values corresponding to these three services is true?

Question4: Refer to the exhibit.

Which statement about Hub & Spoke MPLS VPN is false?
A . If two Spoke sites are connected to the same Spoke PE, they must be assigned to different VPN instances to prevent them from exchanging routing information.
B . The route of traffic from Spoke site 1 to Hub site 2: Traffic enters Hub site 3 through an interface under VPN1-Hub of the Hub PE and is then forwarded to Spoke site 2 through an interface under VPN1-Spoke of the Hub PE.
C . The route of traffic from Spoke site 2 to Hub site 1: Traffic enters Hub site 3 through an interface under VPN1-Spoke of the Hub PE and is then forwarded to Spoke site 2 through an interface under VPN1-Hub of the Hub PE.
D . The Hub PE can advertise aggregate Spoke site routes or default routes to Spoke PEs through VPNv4.
E .Routes advertised by a Spoke PE to Spoke site 1 of the Hub PE may be advertised back by the Hub PE through a VPNv4 neighbor.
Configure VRFs and relevant policies on a PE as follows:
#
ip vpn-instance vrf1
route-distinguisher 100:1
export route-policy vrf1
vpn-target 1:1 export-extcommunity
vpn-target 2:2 import-extcommunity
ip vpn-instance vrf2
route-distinguisher 100:2
import route-policy vrf2
vpn-target 1:1 3:3 export-extcommunity
vpn-target 1:1 3:3 import-extcommunity
ip vpn-instance vrf3
route-distinguisher 100:3
import route-policy vrf3
vpn-target 2:2 3:3 export-extcommunityvpn-target 2:2 3:3 import-extcommunity ip vpn-instance vrf4 route-distinguisher 100:4 import route-policy vrf4 vpn-target 1:1 export-extcommunity vpn-target 2:2 import-extcommunity
#
route-policy vrf2 deny node 1
if-match extcommunity-filter 1
#
route-policy vrf2 permit node 2
#
route-policy vrf1 permit node 1
apply extcommunity rt 3:3 additive
#
route-policy vrf3 permit node 1
if-match extcommunity-filter 2
#
route-policy vrf4 permit node 1
if-match extcommunity-filter 3
#
ip extcommunity-filter 1 permit rt 2:2
ip extcommunity-filter 2 deny rt 1:1
ip extcommunity-filter 3 permit rt 3:3
#
If a route is imported to the routing table of VRF 1, which VRF can the route match?(A)

Question5: Refer to the exhibit.

As shown in the figure, VPN routes are transmitted between PE 1 and
PE 2 through BGP. OSPF process 100 runs on both PEs and CEs. The following BGP route exists on PE 2.
[PE 2]display bgp vpnv4 vpn-instance red routing-table 43.1.1.0
BGP local router ID: 194.1.1.1
Local AS number: 100
Paths: 1 available, 1 best
BGP routing table entry information of 43.1.1.0/24:
Label information (Received/Applied): 15362/NULL
From: 1.1.1.1 (192.2.1.1)
Relay Nexthop: 0.0.0.0
Original nexthop: 1.1.1.1
Ext-Community: RT <100: 1>, <555: 0>, <0.0.0.0: 256>, <111.1.1.1: 0>
Convergence Priority: 0
AS-path Nil, origin incomplete, MED 7, localpref 100, pref-val 0, valid, intern al, best, pre 255 Not advertised to any peer yet If the domain ID configured on PE 2 is 555, which statement is true?

Question6: Winch functions docs the beater network NMS mainly provide?

Question7: The inner VLAN tag in layer 2 user packets is used to differentiated key services from other services. If packets are not processed after being encapsulated by QinQ, the 802. 1p information of the inner VLAN tag becomes invalid. After the QinQ is employed, three methods can be used to configure conditions for sensing 8021p configuration of the inner VLAN tag:
1. Reset the 802.1p of the outer VLAN tag regardless of the existing 02 1p configurations of the inner VLAN tag.
2. Automatically swap the 802. 1p configurations of the inner VLAN tag to that of the outer VLAN tag.
3. Reset the 802.1p configurations of the outer VLAN tag based on the existing 802.1p configurations of the different VLAN tags

Question8: Refer to the exhibit.

As shown in the figure, DUT stands for the device under test and RTA is used to support the test.What is the correct procedure of a fast convergence test? ( )
1. Read data from the tester, record the numbers of sent and received packets, and count the number of lost packets.2. Switch the DUT-to-RTA background traffic to the link whose metric value is 100.3. DUT-to-RTA background traffic is forwarded along the link whose metric value is 10.4. Use the tester to advertise 10K routes to RTA and inject 10K flows to the DUT (each flow takes one route).5. Remove the optical fiber (providing a link whose metric value is 10) from the tester.6.
Calculate the convergence time based on the number of lost packets and packet sending rate.7.
Stop forwarding traffic when the packet receiving rate is equal to the packet sending rate.

Question9: The secure sockets layer (SSL) protocol mainly provides confidentiality and reliability between communication applications. It is found at the transport layer and the application layer, and provides encrypted data transmission. Which of the following protocols are required for encrypted data transmission?

Question10: On the IP bearer network, different VPN users (VPN A and VPN B) must access the internet through the same egress. Which of the following schemes can achieve security isolation VPNs and have the best scalability?

Question11: In asymmetric dual-homing CE networking, which of the following
statements about the VPN are true?

Question12: On the MPLS Layer 3 VPN, PE security is key to the safety of the entire network. Which of the following security measures can be deployed on PEs?

Question13: Exhibit:

As shown in the figure, complex traffic classification is configured for RTA's upstream GigabitEthernet 1/0/0. The QoS is configured as follows:

A tester sends TCP packets from GE 1/1 to GE 1/2 at 40 1.2.2 IF DSCP values of packets GE receives are not 46, what are the possible causes?

Question14: Which statement about the MPLS LSP traceroute is true?

Question15: As shown in the figure, the primary tunnel uses the path RTA -> RTB -> RTC. There are two FRR paths: One protects the link between RTA and RTB and the other one protects the link between RTB and RTC.If a path in the primary tunnel is faulty, which command can be used on RTA to locate the fault?

Question16: As shown in the figure, the mapping between links and administrative groups is as follows:
0x0F for A -> B; 0xFF for B -> C; 0xF0 for A -> C; 0xC3 for B -> D; and 0x3C for C -> D.
It is expected to configure a tunnel (affinity: 0x0C; mask: 0xFF) on node A to connect to RTD. Which path will be created along with the tunnel?

Question17: Exhibit:

As shown in the figure, external route 1.1.1.0/24 is imported to RTA that is located in the NSSA area RTD is a backbone area router. RTB and RTC are both area border router (ABRs). OSPF configuration are as follows.

Which statement is true?

Question18: The RADIUS or Huawei Terminal Access Controller Access Control System (HWTACACS) protocol can be used for authentication during network access. Which of the following statements about these two protocols are false?

Question19: Which of the following can be implemented in an IP backbone network?

Question20: According to the inter-AS VPN Option A, which protocol is used to forward traffic between ASBRs?

Question21: Which statements about the edge access layer is true?

Question22: Which statement describes the delay variation requirement of the voice service for the IP bearer network?

Question23: CR-LSP and GRE are selected as tunneling policies. CR-LSP has a higher priority and a maximum of three tunnels can be configured for load balancing. Which statement about tunnel selection is false?

Question24: Which functions does the bearer network NMS mainly provide?

Question25:

Question26: Which statement about the Ethernet clock synchronization technology used in actual solutions is true?

Question27: Exhibit:

The figure shows the typically mode in which a common softswitch access the bearer network. VRRP is enabled on RTA and RTB. In normal cases, RTA is the VRRP master router and RTB is the VRRP is the VRRP salve router. The ETH_trunk is enabled between RTA RTB. IF VRRP is not bounded to BFD and each [parameter uses their default settings, which statement is the true when the upstream link of RTA is faulty?

Question28: Exhibit:

As shown in the figure, Super VLAN is enabled on SWA (a LAN switch). The Super VLAN configuration is as follows:

Which of the following specifics the time order in which the preceding debugging information is generated?

Question29: Which of the following reserved IP multicast addresses is the address of all PIM routers?

Question30: In MPLS QoS, traffic policies are developed based on simple traffic classification and complex traffic classification. In traffic policies based on simple traffic classification, the service class, color, and drop priority of packets are reset based on the tags in packets. In traffic policies based on complex traffic classification, measures such as traffic policing, priority re-marking, packet filtering, policybased routing, and traffic sampling are implemented based on the traffic type. Generally, simple traffic classification is applied on border routers in DiffServ domains, and complex traffic classification core routers. QoS traffic policies are configured by performing the following operations:
1. Defines DiffServ domains and configuring a traffic policy.
2. Classifies traffic.
3. Defines traffic behaviors and configures characteristics of behaviors.
4. Defines a traffic policy and specifies actions for traffic categories.
5. Applies the traffic policy.
6. Configures L-LSP.
7. Configures reverse address check.
8. Adds interfaces to the DiffServ domains.
Which of the preceding operations are required when you configure simple traffic classification?

Question31: Which statement about the MPLS LSP Ping is true?

Question32: Refer to the exhibit.

OSPF process 1 is started on RTA and assigned to the vpn1 instance.
After the vpn-instance-capability simple command is configured in the OSPF view, which of the following statements are false?

Question33: In which L2VPN technology is L2VPN information transferred through the extended LDP signaling?

Question34: Configure VRFs and relevant policies on a PE as follows:

If a route is imported to the routing table of VRF 1, which VRF can the route match?

Question35: Which statement about the tunnel policy configuration is false?(A)

Question36: In PIM-DM, which of the following scenarios about sending Join messages is true?

Question37: Which of the following statements about TE FRR in forwarding adjacency (FA) mode and TE FRR in IGP Shortcut mode are true?

Question38: On the OSPF network, which of the following statements about the authentication function of the OSPF
protocol are true?

Question39: In PIM DM, which of the following statements about state-refresh message processing are true?

Question40: Which statement about the Hub s MPLS VPN networking is false?

Question41: Refer to the exhibit.

As shown in the figure, CE 1 and CE 3 belong to VPN-A, and CE 2 and
CE 4 belong to VPN-B. VPN-target of VPN-A is 111:1, and that of VPN-B is 222:2.Users on different VPNs are not allowed to access each other. Configuration principles are as follows:
1. On the backbone network, if a PE is connected to a CE, VPN instances need to be configured on the PE, and an interface on the PE for connecting to the CE must be bound to a VPN instance. After binding an interface to a VPN instance, you must configure the IP address of the interface.Between PEs, IS-IS is configured for PE interworking, MPLS basic capabilities and MPLS LDP are configured for MPLS LSP establishment, and MP-IBGP is configured for VPN route exchange. LDP is short for Label Distribution Protocol, and IBGP is short for Interior Border Gateway Protocol.
2. A CE exchanges VPN routes with a PE over External Border Gateway Protocol (EBGP).
Which of the following configurations of PE 1 is incorrect? (A)
(1) Configure Interior Gateway Protocol (IGP) on the IS-IS+MPLS backbone network to achieve the interworking between PEs and P routers.
# Configure PE 1 as follows:
[PE 1] isis 100
[PE 1-isis-100] is-level level-2
[PE 1-isis-100] network-entity 10.1234.1234.1234.00
[PE 1] interface loopback1
[PE 1-LoopBack1] ip address 1.1.1.9 32
[PE 1-LoopBack1] isis enable
[PE 1-LoopBack1] quit
[PE 1] interface pos3/0/0
[PE 1-Pos3/0/0] ip address 172.1.1.1 24
[PE 1-Pos3/0/0] isis enable
[PE 1-Pos3/0/0] quit
(2) Configure MPLS basic capabilities and MPLS LDP for setting up LDP LSPs on the IS-IS+MPLS backbone network.
# Configure PE 1 as follows:
[PE 1] mpls lsr-id 1.1.1.9
[PE 1] mpls
[PE 1-mpls] lsp-trigger all
[PE 1-mpls] quit
[PE 1] mpls ldp
[PE 1-mpls-ldp] quit
[PE 1] interface pos 3/0/0
[PE 1-Pos3/0/0] mpls
[PE 1-Pos3/0/0] mpls ldp
[PE 1-Pos3/0/0] quit(3) Configure VPN instances on a PE for connecting CEs to the PE.
# Configure PE 1 as follows:
[PE 1] ip vpn-instance vpna
[PE 1-vpn-instance-vpna] route-distinguisher 100:1
[PE 1-vpn-instance-vpna] vpn-target 111:1 both
[PE 1-vpn-instance-vpna] quit
[PE 1] ip vpn-instance vpnb
[PE 1-vpn-instance-vpnb] route-distinguisher 100:2
[PE 1-vpn-instance-vpnb] vpn-target 222:2 both
[PE 1-vpn-instance-vpnb] quit
[PE 1] interface gigabitethernet 1/0/0
[PE 1-GigabitEthernet1/0/0] ip binding vpn-instance vpna
[PE 1-GigabitEthernet1/0/0] ip address 10.1.1.2 24
[PE 1-GigabitEthernet1/0/0] quit
[PE 1] interface gigabitethernet 2/0/0
[PE 1-GigabitEthernet2/0/0] ip binding vpn-instance vpnb
[PE 1-GigabitEthernet2/0/0] ip address 10.2.1.2 24
[PE 1-GigabitEthernet2/0/0] quit
(4) Set up an EBGP peer relationship between a PE and a CE and import VPN routes.
# Configure PE 1 as follows:
[PE 1] bgp 100
[PE 1-bgp] ipv4-family vpn-instance vpna
[PE 1-bgp-vpna] peer 10.1.1.1 as-number 65410
[PE 1-bgp-vpna] import-route direct
[PE 1-bgp-vpna] quit
[PE 1-bgp] ipv4-family vpn-instance vpnb
[PE 1-bgp-vpnb] peer 10.2.1.1 as-number 65420
[PE 1-bgp-vpnb] import-route direct
[PE 1-bgp-vpnb] quit
(5) Set up an MP-IBGP peer relationship between PEs.
# Configure PE 1 as follows:
[PE 1] bgp 100
[PE 1-bgp] peer 3.3.3.9 as-number 100
[PE 1-bgp] peer 3.3.3.9 connect-interface loopback 1
[PE 1-bgp] ipv4-family vpnv4
[PE 1-bgp-af-vpnv4] peer 3.3.3.9 enable
[PE 1-bgp-af-vpnv4] quit

Question42: Refer to the exhibit.

As shown in the figure, a CE requires access to the Internet, and PE 1 is connected to the Internet gateway. Configurations on PE 1 are as follows:
PE 1:
#
nat address-group 0 175.31.1.3 175.31.1.10
#
ip vpn-instance vrf1route-distinguisher 192.168.1.1:100
vpn-target 100:1 export-extcommunity
vpn-target 100:1 import-extcommunity
#
acl number 2000
rule 5 permit vpn-instance vrf1
#
#
interface Serial0/0/1:0
link-protocol ppp
ip binding vpn-instance vrf1
ip address 150.1.1.1 255.255.0.0
nat outbound acl 2000 address-group 0
#
interface Pos2/1/0
clock master
link-protocol ppp
ip address 175.31.1.1 255.255.0.0
#
bgp 100
group ibgp internal
peer ibgp connect-interface LoopBack0peer 192.168.1.2 as-number 100
peer 192.168.1.2 group ibgp
#
ipv4-family unicast
undo synchronization
peer ibgp enable
peer 192.168.1.2 enable
peer 192.168.1.2 group ibgp
#
ipv4-family vpnv4
policy vpn-target
peer ibgp enable
peer 192.168.1.2 enable
peer 192.168.1.2 group ibgp
#
ipv4-family vpn-instance vrf1
default-route imported
import-route direct
import-route static
group nei_vrf1 external
peer nei_vrf1 as-number 65004
peer 150.1.1.2 as-number 65004peer 150.1.1.2 group nei_vrf1
#
ip route-static vpn-instance vrf1 0.0.0.0 0.0.0.0 175.31.1.2
PE 1 is connected to the Internet gateway through interface 175.31.1.2. CE 1 and CE 2 cannot ping this interface. Which of the following statements are true?

Question43: Which statement about the MPLS LSP traceroute is true?

Question44: Exhibit:

As shown in the figure, one enterprise has VPN A, the other has VPN B, and the two VPNs each have two CEs. The following requirements needs to be met.
VPNA-CA 1 can interwork with VPNA-CE 2
2>VPNA-CE 1 can interwork with VPNA-CE 2.
The figure shows the types of links between CEs and PEs and the IDs used in Martini mode. Which the following VC ID configurations are correct?

Question45: <Quidway>display current-configuration
multicast routing-enable
#
acl number 2000
rule 5 permit source 225.0.0.0 0.0.0.255
#
interface Ethernet6/1/0
ip address 10.1.1.1 255.255.255.0
igmp enable
pim sm
#
igmp
#
pim
ssm-policy 2000
#
return
The preceding are partial multicast router configurations. Which of the following configurations are required to configure the SSM Mapping on Ethernet 6/1/0 and map IGMPv2 Report messages for multicast group 225.0.0.1 to multicast source 2.2.2.2?

Question46: Which of the following statements about BFD for MPLS LSP are true?

Question47: Exhibit.

As shown in the figure, Super VLAN is enabled on SWA (a LAN switch). The Super VLAN configuration is
as follows:

Which of the following specifics the time order in which the preceding debugginginformationis generated?

Question48: Exhibit.

As shown in the figure, one enterprise has VPN A, the other has VPN B, and the two VPNs each have two
CEs. The following requirements needs to be met.
VPNA-CA 1 can interwork with VPNA-CE 2
2>VPNA-CE 1 can interwork with VPNA-CE 2.
The figure shows the types of links between CEs and PEs and the IDs used in Martini mode. Which the
following VC ID configurations are correct?

Question49: On a VPLS network a PE router receive a packet that containers layer 2 user data from a PE. How does the PE
router determine the source VSI of this packet?

Question50: 1. On the backbone network , if a PE is connect to a CE, VPN instances need to b reconfigured on the PE, and interface on the PE for connecting to the CE must be bound to a VPN instance. After binding an interface to a VPN instance, you must configure the IP address of the interface between PEs, IS-IS configured for PE interworking. PLSA basic capabilities and MPLS LSP are configured for LSP establishment, and MP _IBGP is configured for VPN route exchange VPN routes exchange , LDAP is short for Label Distribution Protocol, and IBGP is short for interior Border gateway protocol.
2. A CE exchange route exchange routers with a PE over External Border gateway Protocol (EBGP.
Configure interior gateway protocol (IGP) on the IS-IS+MPLS backbone networking to achieve the interworking between PEs and IP routers.

Question51: Which statement describes the packet loss ratio requirement of the voice service for the IP bearer network?

Question52: [Quidway]multicast routing-enable
[Quidway]interface Ethernet10/1/0
[Quidway-Ethernet10/1/0]igmp enable
[Quidway-Ethernet10/1/0]igmp robust-count 4
[Quidway-Ethernet10/1/0]quit
[Quidway]igmp
[Quidway-igmp]timer query 100
[Quidway-igmp]robust-count 3
The default IGMP query interval is 60s and the default query response interval is 10s. If Ethernet 10/1/0 receives an IGMP Report message, how long is the timeout interval for creating a group record?

Question53: In PIM-SM, how does each router learn the location of the RP?

Question54: Refer to the exhibit.

As shown in the figure, CE 1 and CE 2 belong to VPN A, both LDP and
TE tunnels are configured between PE 1 and PE 2, the QPPB feature is configured on PE 2, and a tunnel policy is configured and applied to VPNs under PE 2 to make TE tunnels be preferred.
11.11.11.11/32 is a static route on CE 1 and is learned by CE 2. CE 2, however, fails to apply resource isolation VPN to PE 2. What is the possible cause?

Question55: Which of the following is the maximum length of the Ethernet frame encapsulated by QinQ?

Question56: Exhibit:

Which statement about inter-AS MPLS VPN Option_B is false?

Question57: When a PW works in RAW mode, which of the following statements are true?

Question58: Exhibit.

RTA is an edge route of the MPLS backbone network. It provides the access for users under layer 2 switches
and differentiates user by subinterface. User access VALN 100 and has subscribed to the His ViIP , and
services. According to 802 1p priorities, the value 0 indicates the HIS service, 1 indicates the VoIp service and
4 indicate the IPTV service. The DiffSerc model is deployed in E-LSP mode on the MPLS network,
And the STC is configured for subinterface on the access side of RTA (the qos phb disable command is not
configured). Outgoing on the traffic on the G1/0/0.1 suninterface involves the His VoIP, and services on the
access side of RTA. Which statements about EXP about values corresponding to these three services is true?

Question59: Interface Ethernet 3/1/0 is configured as follows:

Ethernet 3/1/0 receives multicast group 232 0.0.31 IGMFV2 Report messages, If no multicast traffic sent to
group 232.0.31 can be detected on Ethernet 3/1/0, which of the following causes may be true?

Question60: An Ethernet cable connects RTA to RTB through Ethernet 0/0.the OSPF neighbor relationship can be
established without enabling the OSPF authentication functionis enabled, Which of the following statements
about the OSPF relationship between RTA and RTB are true?

Question61: Interface Ethernet 3/1/0 is configured as follows:

Ethernet 3/1/0 receives multicast group 232 0.0.31 IGMFV2 Report messages, If no multicast traffic sent to group 232.0.31 can be detected on Ethernet 3/1/0, which of the following causes may be true?

Question62: Which statement describes the delay requirement of the voice service for the IP bearer network?

Question63: What is the SSM group address range the IANA allocates for IPv4?

Question64: In MPLS QoS , traffic policies are developed on simple traffic classified and complex traffic classification policies based on simple traffic classification the service class color, and drop priority of packet are reset based on the packet in the traffic policies on complex traffic classification measures such as traffic classification is applied on border routers in Different domain, and traffic classification core routers. QoS policies are configured by performing the following operations:
Defines DiffSer domain and configuring a traffic policy.
Classification traffic
Defines traffic behavior and configures characteristics of behaviors.
Defines a traffic policy and specifies for traffic categories
Applies the traffic policy
Configure L-LSP
Configures reserve address checks
Adds interface to the DiffSer domain
Which of the proceeding operations are required when you configured simple traffic classification?

Question65: Which of the following are rules for the router to check the RPF after receiving SA messages from the MSDP?

Question66: Exhibit:

RTA is an edge router of the MPLS backbone network. It provides the access services for users under Layer 2 switches and different users by subinterface . User A access VLAN 12 and has subscribed to the His, VoIP, and IPTV services. According to 802 1p priorities, the value indicates the His service, 1 indicates the VoIp service, and 4 indicates the IPTV service. RTA is configured on he access side as follows.

What is the descending order of service priorities?

Question67: An interface sends 300 Mbit/s user BE traffic. The downstream HQoS scheduling is configured at this
interface as follows
SQ: cir 15 Mbit/s pw 200 Mbit/s
FQ. queue be Ipq shaping 10
CQ: port-queue be Ipq shaping shaping-percentage 10 outbound, port shaping 100
How much traffic is at the downstream outbound interface after HQoS scheduling?

Question68: As shown in the figure. CE 1 and CE 3 belong to VPN-A, and CE 2 CE 2 4 belong to VPN-B VPN-target VPN-A is 111:1 and that of VPN-B is 222:2 users on different VPNs are not allowed to access each other. Configuration principles are as follows:
On the backbone network VPNs are not connected to a CE, VPN instance need to be configured on the PE, and an interface on the PE for connecting to the CE must be bounded to a VPN instance. After binding an interface to a VPN instance, you must configure the IP address of the interface Between PEs, IS-IS is configured for PE interworking. MPLS basic capabilities and MPLS LDP are configured for MPLS LSP establishment, and MP-IBGP is configured for VPN route exchange.

How to enable CE 1 to learn routes from AS 64430?

Question69: When the RSVP LSP FRR protection is enables, which of the following statements about the original RSVP
LSP are true?

Question70: A PW is found Down after VPLS is configured on an NE series router. What are possible causes?

Question71: The traffic classification behavior is configured to the single rate dual-bucket CAR in color-blind mode at the upstream interface of the router. Configurations are as follows:
[Quidway]display traffic policy user-defined test User Defined Traffic Policy Information:
Policy: test
Statistic Enable
Classifier: default-class
Behavior: be
-noneClassifier: test
Behavior: test
Committed Access Rate:
CIR 400 (Kbit/s), PIR 0 (Kbit/s), CBS 100000 (byte), PBS 200000 (byte)
Conform Action: pass
Yellow Action: pass
Exceed Action: discardIf the traffic on an interface matches the traffic policy, the traffic rate is 10,000 PPS and the packet frame length (including the CRC) is 125 bytes, which is the closest number of packets transmitted through the interface in the first one second?

Question72: Which of the following statements about the L2VPN are true?

Question73: A gold user and a common user access a carrier network through the MPLS Layer 3 VPN. On the entire MPLS network (from PE to PE), the carrier performs queue scheduling for the gold user by trusting the IP priority of the user and for the common user by using the carrier's own operation policy. Which of the following is the tunnel mode of the MPLS differentiated service for the gold user and common user, respectively?

Question74: Refer to the exhibit.

As shown in the figure, PE 1 sets up an MP-IBGP neighbor relationship
with PE 2 and they communicate over MPLS LDP. A CE communicates with a PE over OSPF.
Configure the VRF on PE 1 as follows:
ip vpn-instance vrf1
route-distinguisher 100:1
vpn-target 1:1 export-extcommunity
vpn-target 1:1 import-extcommunityConfigure OSPF on PE 1 as follows:
ospf 1 vpn-instance vrf1
area 0.0.0.0
network 100.1.1.0 0.0.0.255
Configure BGP on PE 1 as follows:
bgp 100
peer 22.22.22.22 as-number 100
peer 22.22.22.22 connect-interface LoopBack0
#
ipv4-family unicast
undo synchronization
peer 22.22.22.22 enable
#
ipv4-family vpnv4
policy vpn-target
peer 22.22.22.22 enable
#
ipv4-family vpn-instance vrf1
import-route ospf 1
PE 2 has the same configurations as PE 1. MP-IBGP neighbor relationships have been set up between PEs, and OSPF neighbor relationships have been set up between PEs and CEs. A valid route 1.1.1.1/32 is imported from CE 1 to an OSPF area, but CE 1 does not learn the route. What is the reason?

Question75: Which of the following combinations of LDP working modes supports LDP FRR?

Question76: As shown in the figure, IGP is configured on RT 1 and RT 2, and route 193.3.6.0/24 is configured on RT 2. Which of the following statements is correct? Suppose OSPF is used here. Configure an access control list (ACL) on RT 2 in system mode.
ACL 2000
rule 5 permit source 193.3.6.0 0.0.0.255
Configure a routing policy in system mode:
route-policy t permit node 1
if-match acl 2000
apply backup-nexthop 106.108.4.1
apply backup-interface Ethernet4/0/4
Configure the IP FRR in system mode:
ip frr route-policy tConfigure the ethe4/0/4 interface of RT 2:
ospf cost 100
Configure BFD on RT 2:
Enable BFD on Ethernet4/0/3
bfd b1 bind peer-ip 106.108.3.1 interface Ethernet4/0/3
discriminator local 1
discriminator remote 1
min-tx-interval 10
min-rx-interval 10
process-pst
commit

Configuration on RT 1:
Enable BFD on Ethernet7/0/3
bfd b1 bind peer-ip 106.108.3.2 interface Ethernet7/0/3
discriminator local 1
discriminator remote 1
min-tx-interval 10
min-rx-interval 10
process-pst
commit

Question77: Which of the following statements about the working principle f LDAP FRR are true?

Question78: Exhibit:

As shown in the figure, RTA belongs to AS 100 and has an EBGP neighbor relationship with RTC, RTD, and TTB is an IBGP neighbor of RTC, RTD, and RTE, and the four router all belong to AS 200.
(Note: The attributed not involved In the question use the default values)
1. Import route 1.1.1/32 from RTA and advertise this route to RTB by way of RTC, RTD, and RTE, respectively (suppose the three routers between is IGP, EGP, and INCOMPL:ETE, respectively. Which route will RTB prefer?
2. Suppose the preceding policy is retained. Apply inbound routing policies on RTC, RTD, and RTE so that the values of the MED attribute of route 1.1.1.32 learned by RTB are 40, and 20 respectively. Which route will RTB prefer?
3. Suppose the preceding policy is retained. Apply an inbound routing policy on RTB so that the values of the AS_ PATH attribute of route 1.1.1.1/32 Learned from RTC, RTD, and RTE are 10 20 30,and 10 20, respectively. Which route will RTB prefer?
4. Suppose the preceding policy is retained. Apply an inbound routing policy on RTB so that the values of the local-preference attribute of route 1.1.1.1.32 learned from RTC and RTE are 30 and 120 , respectively. Which route will RTB prefer.
5. Suppose the preceding policy is retained. Apply inbound policies on RTC. RTD and RTE so that the values of the preferred-value attribute of route 1.1.1.132 are 50.40 and 30 respectively. Which route will RTB prefer?

Question79: Which of the following statements about the MAC address learning in VPLS are true? (ACD)

Question80: Which message does the pseudo wire emulation edge-to-edge (PWE3) add for LDP signaling extension compared with Martini VLL?

Question81: RTA is a leaf router that directly connects to host A through interface GigabitEthernet 1/0/0. The interface is configured as follows:
interface Ethernet1/0/0
undo shutdown
ip address 192.168.4.2 255.255.255.0
pim sm
igmp enable
igmp version 3
igmp ssm-mapping enable
Configurations in the IGMP view are as follows:
igmp
ssm-mapping 233.1.1.0 255.255.255.0 10.10.1.1
A user sends an IGMPv2 Report message on host A to join groups 232.1.1.1 and 233.1.1.1 but the user cannot receive (10.10.1.1, 232.1.1.1) and (10.10.1.1, 233.1.1.1) messages. To solve this problem, which of the following configurations are required?

Question82: Which statement about primary VPN tunnel binding is false?

Question83: Refer to the exhibit.

As shown in the figure, RTA belongs to AS 100 and has an EBGP
neighbor relationship with RTB. RTB, RTC, RTD, RTE, and RTF belong to AS 200.RTB, RTD, and RTE are assigned to AS65001, RTC to AS65002, and RTF to AS65003.
1. When route 1.1.1.1/32 is imported from RTA, what is the AS_Path attribute of this route to be advertised to RTF?
2. When route 1.1.1.1/32 is imported from RTC, what is the AS_Path attribute of this route to be advertised to RTA?
3. When route 1.1.1.1/32 is imported from RTC, what is the AS_Path attribute of this route to be advertised to RTE?
The attributes are as follows:

Question84: On a BGP/MPLS VPN, a PE and a CE communicate with each other over OSPF. Which command cannot be configured on the PE?

Question85: The VRRP is enabled on the firewall dual-system Intranet users use NAT to access extranet FTP services
Which of the followingstatements are true?

Question86: With the SA, which of the following, option is correct?

Question87: User A wants to obtain a better network service for business development and signs an SLA with a carrier. User A purchases a bandwidth of 5 Mbit/s to ensure the voice service (requiring short delay), video service, key data services, and other services. If you were the carrier's network administrator, what would you do on the PE to ensure these services?