A fully updated 2021 300-510 Exam Dumps exam guide from training expert Exams-boost
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NEW QUESTION 20 
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.
- B.
- C.
- D.
Answer: D
Explanation:
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-1/routing/command/reference/ b_routing_cr41crs/b_routing_cr41crs_chapter_01000.html#wp3850885229
NEW QUESTION 21
What is used by SR-TE to steer traffic through the network?
- A. explicit maps
- B. shortest path calculated by IGP
- C. path policy
- D. dynamic rules
Answer: C
NEW QUESTION 22
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 A
- B. Option D
- C. Option B
- D. Option C
Answer: B
Explanation:
Reference:
https://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-1/routing/command/reference/ b_routing_cr41crs/b_routing_cr41crs_chapter_01000.html#wp3850885229
NEW QUESTION 23
An engineer is troubleshooting slow performance issues on a customer's network after the last multicast configuration change was applied on it While checking the running configuration on the router the engineer notices there are many ip igmp join-group commands applied on several interfaces of the router which caused the high CPU utilization usage. What action must the engineer take to solve this issue?
- A. Configure ip igmp static-group command on all interfaces
- B. Configure all router interfaces to be process-switched by increasing the query interval
- C. Remove ip igmp join-group command on all unnecessary interfaces
- D. Remove unnecessary members from the IGMP group
Answer: C
NEW QUESTION 24
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. 192.168.3.6
- D. 192.168.3.2
Answer: A
NEW QUESTION 25
What is the purpose of a BGP confederation?
- A. It redirects traffic away from route reflectors, which reduces their operating load.
- B. It reduces the number of iBGP peers and increases stability.
- C. It improves service by increasing the number of simultaneous iBGP peering sessions.
- D. It limits the number of routes a device receives from its peers, which reduces CPU load.
Answer: B
NEW QUESTION 26
Which command is used to enable BIDIR-PIM under global configuration mode for Cisco IOS XE Software?
- A. multicast-routing
- B. Ip pim bidlr-enable
- C. ipv4 pim bidir-enable
- D. ip pim bidir ip
Answer: B
NEW QUESTION 27
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 the administratively scoped range is permitted
- B. Only GLOP is permitted
- C. Only the default SSM range is permitted
- D. Only ASM is permitted
Answer: C
NEW QUESTION 28
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 29
Which two statements about mapping multicast IP addresses to MAC addresses are true? (Choose two.)
- A. All mapped multicast MAC addresses begin with 0x0100.5E
- B. All destination MAC addresses begin with an octet of binary 1s
- C. All multicast MAC addresses end with 0x0100.5E
- D. The mapping process may generate overlapping addresses, which can cause receivers to receive unwanted packets
- E. The router performs the mapping before it hands the packet off to a switch
Answer: A,D
NEW QUESTION 30
Refer to the exhibit.
Which LSA type is indicated by this router output?
- A. type 4 LSA
- B. type 3 LSA
- C. type 1 LSA
- D. type 2 LSA
Answer: C
NEW QUESTION 31
Refer to the exhibit.
Which attribute can router 1 alter so that only other iBGP peers prefer to use 192.168.4.2 as the next hop for route 192.168.3.0/24?
- A. origin
- B. MED
- C. weight
- D. local preference
Answer: B
NEW QUESTION 32
Compare different features between OSPFv2 and OSPFv3. Drag and drop the descriptions of OSPF from the left onto the correct OSPF versions on the right.
Answer:
Explanation:
NEW QUESTION 33
Refer to the exhibit.
A network operators configuring BGP PIC on CE1 on already established neighborships with PE1ana PE2 inside the fully converged MPLS network Which element needs to be implemented to make this feature function effectively?
- A. community of 1 10 must be used to denote the PIC feature set to the routing protocol
- B. BGP import export policies must be applied on all devices for the routes needing BGP for PIC
- C. Bidirectional Forwarding Detection must be applied to the upstream facing BGP interfaces.
- D. The operator must ensure that all prefixes have the same next-hop from PE1 and PE2 for BGP PICA reserved BGP
Answer: C
NEW QUESTION 34
Refer to the exhibit.
An engineer is troubleshooting an OSPF issue. Router 1 has a neighbor relationship with router 2. Only router 1 classful EIGRP routes can be seen on router 2. In order for all EIGRP routes to be redistributed correctly, which action should be taken?
- A. Router 1 must have the keyword subnets included in the redistribution command for all EIGRP routes to be redistributed.
- B. Router 1 must have the keyword ospf-metric included in the redistribution command for all EIGRP routes to be redistributed.
- C. Router 1 must remove the AS number 1 from the redistribution command for all EIGRP routes to be redistributed.
- D. Router 1 must have the keyword metric-type 1 included in the redistribution command for all EIGRP routes to be redistributed.
Answer: A
NEW QUESTION 35
Refer to the exhibit.
Routers R1 and R2 cannot form a neighbor relationship, but the network is otherwise configured correctly and operating normally. Which two statements describe the problem? (Choose two.)
- A. The two routers have the same network ID
- B. The two routers are in different subnets
- C. The two routers have password mismatch issues
- D. The two routers are in the same area
- E. The two routers are in different areas
Answer: B,E
NEW QUESTION 36
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