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NEW QUESTION # 79
Refer to the exhibit.
A network engineer configured routers R1 and R5 to run in IS-IS Level 1 mode and router R6 to run in IS-IS Level 2 mode. All other routers are running as Level 1 / Level 2 routers. An engineer expects traffic from R1 to R6 to pass via R2, but IS-IS routing has calculated the best path via R4. Which action corrects the problem?
- A. Configure all routers as Level 1 / Level 2 routers.
- B. Remove the link metric for the link from router R1 to router R2.
- C. Configure all routers as Level 1 routers.
- D. Change the link metric for the link from router R1 to router R2 to 1.
Answer: D
Explanation:
The default link metric for IS-IS is 10, so changing the link from R1 to R2 to 1 will change the overall metric to R6 to 9 (8+1).
NEW QUESTION # 80
A network engineer is troubleshooting OSPF multiare A.
Which Cisco IOS XR feature should the engineer use in order to streamline OSPF issue?
- A. hierarchical CLI
- B. DR support for topology management
- C. routing process enabled by default on all interfaces
- D. show ip ospf topology command
Answer: A
Explanation:
Reference:
https://www.cisco.com/c/en/us/td/docs/routers/xr12000/software/xr12k_r4-0/routing/configuration/ guide/rc40xr12k_chapter4.html#con_1059437
NEW QUESTION # 81
Refer to the exhibit.
An engineer is troubleshooting connectivity issues on the MPLS core network. A customer connected through R4 cannot reach the OSPF domain on R5. While checking the routing table of R1, the engineer cannot see all the routes from R3 and R5. Which task must the engineer perform so that R4 is able to reach R5?
- A. Enable OSPF on the Area-0 routers and configure MP-BGP between routers R1 and R3.
- B. Enable route filtering between routers R1 and R3.
- C. Enable MP-BGP peering on routers R1. R3, R4, and R5.
- D. Enable OSPF peering and configure route redistribution between routers R4 and R1.
Answer: D
NEW QUESTION # 82
Refer to the exhibit.
When implementing SRv6, which SID does R2 propagate into area 0 for the prefix 2001:DB8:1:1/128?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 83
Which statement about BFD on Cisco IOS XR Software is true?
- A. Cisco IOS XR router must use dynamic routing or a static route back to the Cisco IOS router to establish the peer relationship.
- B. BFD is not compatible between Cisco IOS XR and Cisco IOS Software.
- C. Cisco IOS XR Software does not support BFD multihop for IPv4.
- D. Cisco IOS XR router must use LDP to route back to the Cisco IOS router to establish the peer relationship.
Answer: A
Explanation:
Reference:
guide/b-routing-cg-asr9000-63x/b-routing-cg-asr9000-63x_chapter_0100.html
NEW QUESTION # 84 
Refer to the exhibit. P1 and PE3 Cisco IOS XR routers are directly connected and have this configuration applied. The BGP session is not coming up. Assume that there is no IP reachability problem and both routers can open tcp port 179 to each other. Which two actions fix the issue? (Choose two.)
- A. Change MD5 to HMAC-SHA1-12
- B. Change MD5 to HMAC-ESP
- C. Change MD5 to SHA-1
- D. Remove the send and accept lifetime under key 1
- E. Change MD5 to HMAC-MD5
Answer: A,E
Explanation:
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-0/security/configuration/guide/ sc40crsbook_chapter5.html
NEW QUESTION # 85
A network consultant is troubleshooting IS-IS instances to identify why a routing domains is having communication problems between the two instances. Which description of the possible cause of issues in the routing domain is true?
- A. The interface mode ip router is-is command was not included in the script
- B. The configured IS-IS NSEL value is not allowing the routing systems to establish a neighborship
- C. The IS-IS "ISP" and "ISP2" instances are unrelated and unable to intercommunicate
- D. The same interface cannot be advertised in two different IS-IS instances
Answer: D
Explanation:
Reference:
irs-instance-vrf.html
NEW QUESTION # 86
Refer to the exhibit.
Refer to the exhibit. MPLS traffic from 192.168.4.0/24 to 192.168.5.0/24 is failing to pass over the link from R4 to R2. The engineer verified that:
Cisco Express Forwarding Is enabled on all routers.
All routers reach all networks via OSPF.
MPLS traffic from 192.168.1.0/24 to 192.168.3.0/24 is passing normally over the link from R1 to R2.
Which action resolves the issue?
- A. On router R2, configure the mpls label protocol Idp command on the interface.
- B. On router R2, configure the mpls ip command on the SIO/O/4 interface.
- C. On router R4, remove the mpls ip command on the s/O/O/2 interface.
- D. On router R4, configure the mpls label protocol Idp command on all serial interfaces.
Answer: B
NEW QUESTION # 87
Refer to the exhibit.
Which LSA type is indicated by this router output?
- A. type 1 LSA
- B. type 4 LSA
- C. type 3 LSA
- D. type 2 LSA
Answer: A
NEW QUESTION # 88
Refer to the exhibit.
Refer to the exhibit. Routers CE1 and CE2 are in AS 65530. which is multihomed for Internet access. An engineer expects inbound traffic to AS 65530 to arrive from PE1. but it is coming from PE2 instead PE1 and PE2 routers are connected with CE routers through the same bandwidth Which action must be taken to correct the problem?
- A. Set the local-preference value on router CEI to 100 or greater
- B. Configure router CEI to prepend the AS path to routes it receives from PE 1.
- C. On router CE2, configure inbound routes from PE2 to CE2 with a local-preference value of 50 or greater.
- D. On router PEI , change the origin for routes that are redistributed from CEI to CE2.
Answer: A
NEW QUESTION # 89
Refer to the exhibit.
Refer to the exhibit. A network engineer is investigating a report of packet drops between the branch site and the central site.
The two sites are connected via OSPF and RSVP-TE tunnels.
Traffic from the central site to the branch site is passing normally.
Technicians at both sites successfully ping the loopback IP addresses on routers R1 and R2.
Which configuration corrects the packet-drop problem?
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: D
NEW QUESTION # 90
Refer to the exhibit.
Router 1 is connected to router 2 on interface TenGigE0/1. Which interface provides the alternate path to 172.16.200.9/32 when the link between router 1 and router 2 goes down?
- A. TenGigE0/2 interface provides the alternate path
- B. TenGigE0/1 interface provides the alternate path
- C. A primary path must be manually installed
- D. A backup path must be statically installed
Answer: A
NEW QUESTION # 91
Refer to the exhibit. A network engineer implemented this segment routing configuration. Which statement about the output is true?
- A. A nondefault segment routing global block range is being used on this device.
- B. The device must be reloaded for these ranges to be allocated and used.
- C. The default segment routing global block range is being used on this device.
- D. This range conflicts with the segment routing local block range.
Answer: A
Explanation:
https://www.cisco.com/c/en/us/td/docs/routers/asr920/configuration/guide/segment-routing/ segment-routing-book/seg-routing-global-block.html
NEW QUESTION # 92
Refer to the exhibit.
Router 1 has established an SR-TE tunnel with router 2. Which statement describes this configuration?
- A. Router 2 is the head-end tunnel and has explicitly set a path to router 1.
- B. Router 1 has a list of labels used to explicitly lay out a path to router 2.
- C. Router 1 and router 2 have a bidirectional tunnel set up with dynamic path selection.
- D. Router 1 is the head-end tunnel and has dynamically chosen a path to router 2.
Answer: D
NEW QUESTION # 93
Refer to the exhibit.
Refer to the exhibit. A service provider has LDP and segment routing running in the network. Mobility traffic is carried through LDP and enterprise traffic is carried through segment routing. Which configuration must be implemented to connect the bank branch with the HUB site on routers?
- A. Enable segment-routing Mpls Sr-prefer on AGI and AG2 routers for 10.0.0.0/8.
- B. Enable segment-routing Mpls Sr-prefer on CRI and CR2 routers for 10.0.0.0/8.
- C. Configure segment-routing Sr-prefer prefix-list on AGI and AG2 router for 10.10.10.10/24.
- D. Configure segment-routing sr-prefer prefix-list on CRI and CR2 routers for 10.20.20.10/24.
Answer: D
NEW QUESTION # 94
Refer to the exhibit.
An engineer has successfully fixed BGP peering issue. R1 has an established eBGP peering with R2 and R3. Which mechanism should the engineer apply in order to steer the traffic correctly?
- A. The local preference attribute can be applied on R3 to influence AS 65513 to use AS 65515 as the secondary path.
- B. The IGP metric can be manipulated on R1 to allow traffic to be load balanced between R2 and R3.
- C. The weight attribute can be applied on R2 to influence AS 65513 to use AS 65515 as the primary path.
- D. The MED attribute can be applied on R2 to influence R1 to use it as the primary path.
Answer: B
Explanation:
Some level of load balancing is achieved by default as BGP prefers shortest AS_PATH for certain prefix (Cisco BGP path selection algorithm - rule 4) . If 1-7 rules gives no preference for certain prefix then with rule 8. Prefer lowest IGP metric to BGP next hop we can force traffic to R2 or R3 influencing load distribution.
NEW QUESTION # 95
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