あなたを合格させる試験には100%確認済み300-510試験問題
300-510問題集PDFで300-510リアル試験問題解答
質問 51
Refer to the exhibit.
Router 1 has attempted to establish a Cisco MPLS TE tunnel to router 2, but the tunnel has failed. Which statement about this configuration is true?
- A. Router 2 must have a tunnel interface created with router 1 as the destination
- B. Router 1 and router 2 must define the RSVP bandwidth reserved on the physical interfaces
- C. Router 1 must have Cisco MPLS TE enabled on interface gigabitethernet0/1
- D. Router 1 must define an explicit path to router 2
正解: C
質問 52
Which task is performed when troubleshooting LDP?
- A. Verify that MPLS is disabled globally and enabled on the necessary interfaces in a per-interface basis
- B. Verify that Cisco Express Forwarding has been disabled on the network
- C. Execute the ping utility to generate information about the MAC addresses used along the path
- D. Execute the traceroute utility to generate information about the labels used along the path
正解: D
質問 53
Which output from the show isis interface command helps an engineer troubleshoot an IS-IS adjacency problem on a Cisco IOS-XR platform?
- A. circuit type
- B. priority
- C. metric
- D. hello interval
正解: D
質問 54 
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.
- B.
- C.
- D.
正解: A
解説:
Explanation
質問 55
Refer to the exhibit.
Which statement about this configuration is true?
- A. Router 1 sends and receives multiple best paths from neighbor 192.168.1.1
- B. Router 1 sends up to two paths to neighbor 192.168.1.1 for all routes
- C. Router 1 receives up to two paths from neighbor 192.168.1.1 for all routes in the same AS
- D. Router 1 receives only the best path from neighbor 192.168.1.1
正解: A
質問 56 
Refer to the exhibit. Which statement about this configuration is true?
- A. Router 1 sends and receives multiple best paths from neighbor 192.168.1.1
- B. Router 1 sends up to two paths to neighbor 192.168.1.1 for all routes
- C. Router 1 receives up to two paths from neighbor 192.168.1.1 for all routes in the same AS
- D. Router 1 receives only the best path from neighbor 192.168.1.1
正解: A
質問 57 
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.
- B.
- C.
- D.
正解: C
解説:
Explanation/Reference:
質問 58
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 C
- B. Option D
- C. Option B
- D. Option A
正解: A
質問 59
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. weight
- B. MED
- C. origin
- D. local preference
正解: B
質問 60
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 weight attribute can be applied on R2 to influence AS 65513 to use AS 65515 as the primary path.
- B. The IGP metric can be manipulated on R1 to allow traffic to be load balanced between R2 and R3.
- C. The local preference attribute can be applied on R3 to influence AS 65513 to use AS 65515 as the secondary path.
- D. The MED attribute can be applied on R2 to influence R1 to use it as the primary path.
正解: B
質問 61
Refer to the exhibit.
What is the relationship between Router 1 and Router 2?
- A. Router 1 and Router 2 centrally learn the topology of the network to aid in SR-TE path selection for peers.
- B. Router 1 and Router 2 are participating in SR-TE tunnels and are both head-end routers.
- C. Router 1 centrally learns the topology of the network to aid in SR-TE path selection, and Router 2 is a node that feeds Router 1 topology information.
- D. Router 2 is the head-end router in an SR-TE tunnel, and it is learning topology of the network from the PCE enabled on Router 1.
正解: D
質問 62
DRAG DROP
Drag and drop the attributes for the BGP route selection on the left into the correct order on the right. Not all options are used.
Select and Place:
正解:
解説:
Explanation/Reference: https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13753-25.html
質問 63
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 same interface cannot be advertised in two different IS-IS instances
- C. The configured IS-IS NSEL value is not allowing the routing systems to establish a neighborship
- D. The IS-IS "ISP" and "ISP2" instances are unrelated and unable to intercommunicate
正解: B
解説:
Reference:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_isis/configuration/xe-3s/irs-xe-3s-book/ irs-instance-vrf.html
質問 64
Refer to the exhibit.
An engineer applied the configuration on R1 to prevent network 192.168.1.0/24 from being propagated outside of area 5. After the change, users have reported they are not able to access any of the application servers that were working before. While checking the routing table of the peer router. The engineer notices R1 stopped propagating any routes outside are 5. Which action must be taken to fix the problem?
- A. Configure an additional filter-list on R1 for inbound traffic to allow external router into area 5.
- B. Add a permit statement for 0.0.0.0/0 le 32 to the end of the prefix-list 10 override the implicit deny.
- C. Reconfigure the filter-list statement to apply in the inbound direction
- D. Change the prefix-list action to permit and add an explicit deny statement for network 192.168.1.0/24
正解: B
質問 65 
Refer to the exhibit. Which task must you perform on interface g1/0/0 to complete the SSM implementation?
- A. disable IGMP
- B. configure OSPFv3
- C. enable CDP
- D. configure IGMPv3
正解: D
解説:
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16/imc-pim-xe-16- book/imc-ssm.html
質問 66 
Refer to the exhibit. A network operator is working to filter routes from being advertised that are covered under an aggregate announcement. The receiving router of the aggregate announcement block is still getting some of the more specific routes plus the aggregate. Which configuration change ensures that only the aggregate is announced now and in the future if other networks are to be added?
- A. Set each specific route in the AGGRO policy to drop instead of suppress-route
- B. Set each specific route in the AGGRO policy to remove instead of suppress-route
- C. Filter the routes on the receiving router
- D. Configure the summary-only keyword on the aggregate command
正解: D
質問 67
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 SHA-1
- B. Change MD5 to HMAC-MD5
- C. Change MD5 to HMAC-SHA1-12
- D. Remove the send and accept lifetime under key 1
- E. Change MD5 to HMAC-ESP
正解: B,C
解説:
Reference:
https://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-0/security/configuration/guide/ sc40crsbook_chapter5.html
質問 68
Which command is used to enable BIDIR-PIM under global configuration mode for Cisco IOS XE Sofware?
- A. ipv4 pim bidir-enable
- B. ip pim bidir
- C. ip pim bidir-enable
- D. ip multicast-routing
正解: C
質問 69
What is the role of segment routing mapping server?
- A. It selects multiple mapping entries to create overlapping active mapping policies.
- B. It advertises a local SID mapping policy to all the mapping clients.
- C. It reads and translates remotely received SIDs from other mapping servers to create SID mapping entries.
- D. It works with IGP instances to calculate the prefix-SIDs in the absence of a mapping policy.
正解: B
質問 70
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