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NEW QUESTION # 159
Refer to the exhibit.
An engineer at a large ISP is troubleshooting suboptimal routing on a customer's IS-IS network with multiple Level 1-2 routers. The network consists of numerous routers that are configured for MPLS. When IS-IS picks the closest Level 1-2 router to exit the area, suboptimal routing occurs in Area 8 and Area 10. The other IGP protocols are running correctly, and the IS-IS adjacency between routers is established. Which action resolves the issue?
- A. Configure the router as DIS for each of the interfaces on router 1.
- B. Redistribute Level 2 prefixes into Level 1 on router 2.
- C. Configure each interface as either Level 1 or Level 2 circuit type on router 1.
- D. Disable advertisement of the default route on router 2.
Answer: B
NEW QUESTION # 160
Refer to the exhibits. A network operator is troubleshooting packet loss seen from the R1 loopback interface to the R2 loopback interface over the core network. The operator is attempting to identify the next leg in the path from PE1.
Which interface and label path should the operator investigate next?
- A. PE1 - Gi0/0/0/3 - forwarding label 24001
- B. PE1 - Gi0/0/0/2 - forwarding label 24001
- C. PE1 - Gi0/0/0/3 - forwarding label 24002
- D. PE1 - Gi0/0/0/2 - forwarding label 24002
Answer: A
NEW QUESTION # 161
Refer to the exhibit.
A network operator is troubleshooting TE tunnels and discovers that the soft preemption is not working as desired. Where should the soft preemption be applied to solve the issue?
- A. on the tail-end device for tunnel-te1 192.168.0.7
- B. explicitly for tunnel-te 1 under the Cisco MPLS TE configuration mode after the timeout setting
- C. under the tunnel-te1 interface on PE1
- D. Under the interface Loopback0 necessary for this deployment type.
Answer: C
NEW QUESTION # 162
Refer to the exhibit.
A network operator must inject a Level 1 route from XR2 (10.16.16.0/24) into the ISIS topology. Which configuration allows the injection in a way that XR3 and XR1 have a valid and working route for 10.16.16.0/24?
- A. Option C
- B. Option B
- C. Option D
- D. Option A
Answer: C
Explanation:
L1 route injected by XR2 won't be advertised to XR1, since L2 routes are NOT leaked to L1 by default. An [L2-L1] route leak policy should be configured on L1/L2 router (XR3).
NEW QUESTION # 163
Refer to the exhibit.
Refer to the exhibit. After a recent network implementation project, customer A is performing stress testing to verify network redundancy at the branch office connected to R4. When the link from R2 is shut Oown as shown, the SLA tracking object fails and the cost of the link between R2 and R4 increases to 100. However, a traceroute operation from a PC in the Branch office shows that traffic to HQ is still routed via R2. Which solution corrects the problem and optimizes traffic flow via R3 without creating operational overhead?
- A. Create a virtual channel from R3 to R4.
- B. Configure two OSPF processes on R2 and R3 and redistribute traffic between them.
- C. Use multiarea adjacency to extend Area 10 to the link between R2 and R3.
- D. Redistribute routes from BGP to OSPF as type El.
Answer: D
NEW QUESTION # 164
Refer to the exhibit.
Refer to the exhibit. Mid-sized company Z connected two branch offices via a multicast-enabled ISP using the BGP routing protocol. PIM was implemented to support multicast streaming between the branches via MSDP Client A cannot connect to the multicast stream source of company Z. The network engineer ran a debug on the edge of the network as shown. Which action resolves the issue?
- A. Enable the BGP routing protocol and advertise the 10 10.10.0/24 subnet on R1.
- B. Implement MBGP and enable a multicast address family on R2
- C. Deploy BSR on routers R1 and R2 and enable multicast on both LAN segments.
- D. Configure the PIM protocol on the Serial 1/1 interface and enable Auto-RP
Answer: C
NEW QUESTION # 165 
Refer to the exhibit. Users at the branch office on R1 reported issue with an application at the home office on R4. While troubleshooting the issue, a network engineer determined that
* The branch-office users can connect to the home office.
* The IS-IS adjacencies between R1 and R2 and R1 and the branch office are up.
* Traffic from R1 to the R2 10.20.1.0/24 network is moving normally.
* The application at the home office is experiencing packet drops on the connection to the Branch, and R3 cannot reach the R1 172.16.10.0/24 network.
Which action resolves the issues?
- A. Redistribute static connected routes in IS-IS on router RI.
- B. Configure the IS-IS core instance on the RI GigabitEthernet0/3 interface.
- C. Configure the IS-IS core instance on the R2 GigabitEthernet0/1 interface.
- D. Redistribute static connected routes in IS-IS on router R4.
Answer: B
NEW QUESTION # 166
Refer to the exhibit. Router R1 is configured to advertise outgoing SA messages to routers R2 and R3, but to receive incoming SA messages only from R2. Which additional configuration must an engineer apply to router R1 so it filters all MSDP SA messages from Domain-C?
- A. R1# ip msdp sa-filter in 192.168.3.1
- B. R3# ip msdp password peer 192.168.1.1
- C. R3# ip msdp sa-filter out 192.168.3.1
- D. R1# ip msdp password peer 192.168.3.1
Answer: A
Explanation:
https://www.cisco.com/c/en/us/support/docs/ip/ip-multicast/13717-49.html
NEW QUESTION # 167
Refer to the exhibit.
A customer reports that Host-1 is failing to receive streaming traffic from the IPTV source. The engineer has confirmed that hosts on router R2 are receiving traffic normally and that Host-1 is correctly sending subscription messages to join the IPTV stream. Which action must the engineer take to correct the problem?
- A. Configure IGMP version 3 under interface GigabitEthernet 1/(V1 on R3
- B. Remove IP PIM SSM and IGMP from interface GigaEthernet 1/0/1 on R3 and configure under global configuration
- C. Configure IP PIM SSM and IGMP version 2 under interface GigatxtEthernet 1/0/1 on R3
- D. Remove IP PIM SSM from the global configuration on R3 and configure it under the GigabitEthernet 1/0/1 interface
Answer: A
NEW QUESTION # 168
Refer to the exhibit.
XR1 and XR2 are sending the prefix 10.11.11.0/24 to XR3. A configured policy on XR1 is incorrectly prepending AS path 11 11 12 12 onto this prefix. A network operator wants to add a policy onto XR3 that will not allow the falsely prepending prefix from being installed. Which policy configuration applied to the XR3 neighbor configuration for XR1 can accomplish this requirement without impact to other or future received routes?
- A. Option C
- B. Option B
- C. Option D
- D. Option A
Answer: C
Explanation:
Reference:
b_routing_cr41crs/b_routing_cr41crs_chapter_01000.html#wp3850885229
NEW QUESTION # 169
An SP core is running PIM on the network. Multicast groups in this networkare in the 232.0.0.0/8 range. Which commandenables multicast routing operations without using an RP?
- A. ip pim ssm default
- B. ip pim autorp
- C. ip pim register-source
- D. ip pim bidir-enable
Answer: A
NEW QUESTION # 170
Refer to the exhibits.
All links inside the network are configured at a default cost of one inside the fully converged OSPF domain.
Given the configuration from XR1, which interface does traffic from XR1 that is destined to the loopback interface of XR6 select for the exiting interface?
- A. Interface GigabitEthernet 0/1. The tie breaker of the path cost being lower. The node index priority does not impact this selection process.
- B. Interface GigabitElhemet 0/0. The tie breaker of the node index priority is lower and trumps the path cost.
- C. Interface GigabitEthernet 0/1. The tie breaker of the node index priority is lower and trumps the path cost.
- D. Interface GigabitEthernet 0/0. The tier breaker of the path cost being lower. The node index priority does not impact this selection process.
Answer: B
NEW QUESTION # 171
What is the purpose of a BGP confederation?
- A. It reduces the number of iBGP peers and increases stability.
- B. It improves service by increasing the number of simultaneous iBGP peering sessions.
- C. It limits the number of routes a device receives from its peers, which reduces CPU load.
- D. It redirects traffic away from route reflectors, which reduces their operating load.
Answer: A
NEW QUESTION # 172
Refer to the exhibit.
VPN users that are connected to PE routers are facing network issues. Traffic that originates from CE1 drops before reaching CE2. An engineer finds no outgoing traffic statistics on PE1 and PE2 routers toward CE devices and finds that the PE1 router is running the older software image. Which action must be implemented to resolve the issues?
- A. Enable LDP protocol on PE1 and PE2 routers.
- B. Advertise PE2 router loopback on PE1 in OSPF.
- C. Enable CEF-based forwarding on PE1 router.
- D. Advertise P1 router loopback on PE1 in OSPF.
Answer: C
NEW QUESTION # 173
Refer to the exhibit. An engineer is troubleshooting a network routing issue on this IS-IS network situated at the customer's regional hub. Router 2 that runs Cisco IOS XR Software cannot see the network 10.1.1.0/24 on router 1. The Layer 2 encapsulations are correct. The ARP connectivity for the Ethernet interface that runs IS-IS is working.
Which action resolves the issue?
- A. On router 1, remove the CISCOLIVE keyword after the IP router Isis command under interface GigabitEthernet0/2.
- B. On router 1, add the CISCOLIVE keyword after the IP router isis command under interface GigabitEthernet0/3.
- C. Under the router isis command on router 1. Change is-type level-1 to is-type level-2.
- D. Under the router isis command on router 2. Change is-type level-1 to is-type level-2.
Answer: B
NEW QUESTION # 174
Refer to the exhibits.
A network operator is troubleshooting packet loss seen from the R1 loopback interface to the R2 loopback interface over the core network. The operator is attempting to identify the next leg in the path from PE1.
Which interface and label path should the operator investigate next?
- A. PE1 - Gi0/0/0/3 - forwarding label 24001
- B. PE1 - Gi0/0/0/2 - forwarding label 24001
- C. PE1 - Gi0/0/0/3 - forwarding label 24002
- D. PE1 - Gi0/0/0/2 - forwarding label 24002
Answer: A
NEW QUESTION # 175
Refer to the exhibit.
CE1 and CE2 cannot communicate through the service provider BGP peering is established between PE1 and PE2. IS-IS is the only routing protocol running in the service provider core. What step can be done to troubleshoot the issue?
- A. Confirm that IS-IS is running with metric-style narrow.
- B. Switch the IGPs running in the core from IS-IS to OSPF to support a Cisco MPLS TE tunnel from PE1 to PE2.
- C. Verify the MPLS LSPs.
- D. Configure BGP between CE and PE routers.
Answer: A
NEW QUESTION # 176
Refer to the exhibit
Which router does R1 install as an alternate next hop when trying to reach R3 if LFA is enabled?
- A. R5
- B. R3
- C. R2
- D. R4
Answer: C
NEW QUESTION # 177
Which cost is the default when redistributing routes from BGP to OSPF?
- A. automatic
- B. infinite
- C. 0
- D. 1
Answer: D
NEW QUESTION # 178
After changing the IP address on an IOS XR router, an engineer cannot ping the new address Which step did the engineer forget to complete?
- A. merge the configuration
- B. roll back the configuration
- C. save the running configuration
- D. commit the configuration
Answer: D
NEW QUESTION # 179
Refer to the exhibit. VPN users that are connected to PE routers are facing network issues.
Traffic that originates from CE1 drops before reaching CE2. An engineer finds no outgoing traffic statistics on PE1 and PE2 routers toward CE devices and finds that the PE1 router is running the older software image. Which action must be implemented to resolve the issues?
- A. Enable LDP protocol on PE1 and PE2 routers.
- B. Advertise PE2 router loopback on PE1 in OSPF.
- C. Enable CEF-based forwarding on PE1 router.
- D. Advertise P1 router loopback on PE1 in OSPF.
Answer: C
Explanation:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_basic/configuration/xe-3s/mp-basic-xe-3s- book/mp-mpls-cisco-rtrs.html
NEW QUESTION # 180
Refer to the exhibit.
A network operator must stop 10.33.33.33/32 from being redistributed into Level 1 router XR1. Which configuration meets this need?
- A. Option B
- B. Option A
- C. Option C
- D. Option D
Answer: C
NEW QUESTION # 181
Refer to the exhibit. The green policy is designed with low delay, and the pink policy is designed with low cost. What is the next hop for node A on its way to node D, with the objective of achieving a low delay?
- A. 192. 168.1.2
- B. 192.168.1.6
- C. 192.168.3.2
- D. 192.168.3.6
Answer: A
NEW QUESTION # 182
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