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The exam requires a deep understanding of various routing protocols, such as OSPF, BGP, and IS-IS, and their implementation in a service provider network. Candidates should also be familiar with MPLS VPN technologies, as well as network automation and programmability. The exam is designed to test the candidate's ability to configure, troubleshoot, and optimize the routing solutions in a service provider network.
NEW QUESTION # 33
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 default segment routing global block range is being used on this device.
- C. This range conflicts with the segment routing local block range.
- D. The device must be reloaded for these ranges to be allocated and used.
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 # 34
Refer to the exhibit. A network operator is getting the route for 10.11.11 0/24 from two upstream providers on #XR3.
The network operator must configure #XR3 to force the 10.11.11.0/24 prefix to route via next hop of 10.0.0.9 as primary when available.
Which of these can the operator use the routing policy language for, to enforce this traffic forwarding path?
- A. weight of 100 on the prefix coming from 192.168.0.1
- B. higher local preference on the prefix coming from 192.168.0.1
- C. weight of 0 on the prefix coming from 192.168.0.2
- D. lower local preference on the prefix coming from 192.168.0.2
Answer: B
NEW QUESTION # 35
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. TenGigE0/1 interface provides the alternate path
- B. A primary path must be manually installed
- C. A backup path must be statically installed
- D. TenGigE0/2 interface provides the alternate path
Answer: D
NEW QUESTION # 36
What is used by SR-TE to steer traffic through the network?
- A. shortest path calculated by IGP
- B. dynamic rules
- C. explicit maps
- D. path policy
Answer: D
Explanation:
https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/segment- routing/configuration/guide/b-seg-routing-cg-asr9k/b-seg-routing-cg-asr9k_chapter_0100.html
NEW QUESTION # 37
Refer to the exhibit. Which LSA type is indicated by this router output?
- A. type 1 LSA
- B. type 3 LSA
- C. type 2 LSA
- D. type 4 LSA
Answer: A
NEW QUESTION # 38
Refer to the exhibit.
Which tree does multicast traffic follow?
- A. shared tree
- B. MDT voice
- C. MDT default
- D. source tree
Answer: C
NEW QUESTION # 39
Refer to the exhibit.
An engineer is addressing an IS-IS design issue which is running within the topology. All links are running on FastEthernet, except the link between R5 and R4, which is Gigabit Ethernet. Which statement about the design is true?
- A. R4 prefer to reach R5 using R1 as the next hop
- B. All links have equal cost if the default metric is used
- C. R5 prefers to use R4 as the next hop for all routes
- D. R1 prefer to use R5 as the next hop to reach R4
Answer: B
NEW QUESTION # 40
Refer to the exhibit.
An MPLS core network has connectivity issues R4 has failed. It impacts traffic loss between R1 and R8. Customers report no access to their file servers, which delays their transformation work. Which quick action resolves the issue until R4 recovers?
- A. Implement Link and Node protection on routers R2 and R7.
- B. Disable traffic engineering so that traffic prefers the IGP path
- C. Enable MPLS TE fast reroute on router R1 and Link and Node protection on router R2.
- D. Configure IBGP full mesh for faster convergence.
Answer: C
NEW QUESTION # 41
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 register-source
- B. ip pim ssm default
- C. ip pim autorp
- D. ip pim bidir-enable
Answer: B
NEW QUESTION # 42
A CRS router that runs Cisco IOS XR has dual routing processors installed.
Which solution should be implemented to prevent OSPF adjacency flapping if the primary routing processor fails?
- A. router msdp
- B. NSF
- C. OSPF Fast Timers
- D. OSPF RE Sync
- E. NSR
Answer: E
NEW QUESTION # 43
Refer to the exhibit.
A network engineer applied configuration on R1 to summarize all ISIS routes, but R2 Is still receiving specific routes from R1. The engineer has confirmed that both routers are configured with the correct summarization configuration, but R1 is not sending the correct summary routes. Which configuration must be applied to router R1 to summarize routes within Level 1?
- A. Option A
- B. Option B
- C. Option D
- D. Option C
Answer: D
NEW QUESTION # 44
A network operator working for a telecommunication company with an employee id: 4074:92:707 is planning to implement the Nonstop Forwarding (NSR) feature on the customer's core network. After getting the configuration ready for NSR. on which router should the operator implement NSR changes?
- A. on the ABR router
- B. on the ASBR router
- C. on the PE router
- D. on the CE router
Answer: C
NEW QUESTION # 45
Which cost is the default when redistributing routes from BGP to OSPF?
- A. infinite
- B. 0
- C. 1
- D. automatic
Answer: C
Explanation:
Reference:
http://www.ciscopress.com/articles/article.asp?p=27573
NEW QUESTION # 46
Refer to the exhibit.
After these configurations were applied to routers R1 and R2. the two devices cannot form a neighbor relationship What is the reason tor the problem?
- A. The two routers cannot authenticate with one another
- B. The two routers have the same network ID
- C. The two routers have the same area ID.
- D. The two routers have different iS-types
Answer: A
NEW QUESTION # 47
Refer to the exhibit
Which router does R1 install as an alternate next hop when trying to reach R3 if LFA is enabled?
- A. R2
- B. R5
- C. R3
- D. R4
Answer: A
NEW QUESTION # 48
Refer to the exhibit.
A service provider technician is working on a multicast issue for a customer. While checking the multicast table, the technician notices that no flags are present for the (1.1.1.1, 239.1.1.1) entry, yet flags are present for the (1.1.1.1, 232.1.1.1) entry.
Which factor might explain this issue?
- A. Only ASM is permitted
- B. Only GLOP is permitted
- C. Only the administratively scoped range is permitted
- D. Only the default SSM range is permitted
Answer: D
NEW QUESTION # 49
Which command is used to enable BIDIR-PIM under global configuration mode for Cisco IOS XE Sofware?
- A. ip multicast-routing
- B. ip pim bidir-enable
- C. ip pim bidir
- D. ipv4 pim bidir-enable
Answer: B
NEW QUESTION # 50
Refer to the exhibit.
Refer to the exhibit After recent configuration changes to a customer's network, a network engineer notices that R2 cannot communicate with R3 Both FastEthemet interfaces on R2 and R3 are up and configured with the correct IP addresses MD5 password configured en R2 and R3 match with no issues What is the minimum change the engineer must make to enable R2 and R3 to communicate and fix the problem?
- A. Configure interface F0/0 on RI and R2 to be in area O.
- B. Define area 2 as a NSSA on R2 and R3
- C. Configure a loopback interface on R2 and assign it to area 0.
- D. Configure virtual links between RI and R3.
Answer: C
NEW QUESTION # 51
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 - Gi0/0/0/2 - forwarding label 24001
- B. PE1 - Gi0/0/0/2 - forwarding label 24002
- C. PE1 - Gi0/0/0/3 - forwarding label 24002
- D. PE1 - Gi0/0/0/3 - forwarding label 24001
Answer: D
NEW QUESTION # 52
An ISP has an MPLS VPN-based network with 12 PE routers. How many peerings are required between the 12 routers if the engineer has not configured route reflectors?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 53
Refer to the exhibit. Which tree does multicast traffic follow?
- A. shared tree
- B. MDT voice
- C. MDT default
- D. source tree
Answer: C
NEW QUESTION # 54
Refer to the exhibit.
Which tree does multicast traffic follow?
- A. shared tree
- B. MDT voice
- C. MDT default
- D. source tree
Answer: C
NEW QUESTION # 55
An engineer is troubleshooting end-to-end customer traffic across an MPLS VPN service provider network. Which tasks should the engineer use to solve the routing issues? Drag and drop the table types from the left onto the most useful troubleshooting tasks/router types on the right. (Not all options are used.)
Answer:
Explanation:
NEW QUESTION # 56
Refer to the exhibit.
Which statement about this configuration is true?
- A. Router 1 receives only the best path from neighbor 192.168.1.1
- B. Router 1 sends and receives multiple best paths from neighbor 192.168.1.1
- C. Router 1 receives up to two paths from neighbor 192.168.1.1 for all routes in the same AS
- D. Router 1 sends up to two paths to neighbor 192.168.1.1 for all routes
Answer: B
NEW QUESTION # 57
An engineer is troubleshooting a connectivity issue across the MPLS network and is verifying the forwarding behavior of packets. Which table does the engineer look at to verify the forwarding behavior of an IP packet as it enters the MPLS network at the ingress LSR?
- A. RIB
- B. FIB
- C. LFIB
- D. LIB
Answer: C
NEW QUESTION # 58
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