合格保証付きクイズ2021年最新の実際に出る検証済みの300-510無料試験問題集
無料CCNP Service Provider 300-510究極な学習ガイド（更新されたのは104問があります)
質問 46
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. Change the prefix-list action to permit and add an explicit deny statement for network 192.168.1.0/24
- B. Configure an additional filter-list on R1 for inbound traffic to allow external router into area 5.
- C. Reconfigure the filter-list statement to apply in the inbound direction
- D. Add a permit statement for 0.0.0.0/0 le 32 to the end of the prefix-list 10 override the implicit deny.
正解: D
質問 47 
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. A primary path must be manually installed
- B. TenGigE0/2 interface provides the alternate path
- C. TenGigE0/1 interface provides the alternate path
- D. A backup path must be statically installed
正解: B
質問 48 
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. Configure BGP between CE and PE routers.
- 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. Confirm that IS-IS is running with metric-style narrow.
- D. Verify the MPLS LSPs.
正解: C
質問 49
Refer to the exhibit.
Which tree does multicast traffic follow?
- A. source tree
- B. MDT default
- C. MDT voice
- D. shared tree
正解: B
質問 50
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. Under the interface Loopback0 necessary for this deployment type.
- B. explicitly for tunnel-te 1 under the Cisco MPLS TE configuration mode after the timeout setting
- C. on the tail-end device for tunnel-te1 192.168.0.7
- D. under the tunnel-te1 interface on PE1
正解: D
質問 51
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 D
- B. Option B
- C. Option A
- D. Option C
正解: D
質問 52
Refer to the exhibit.
While configuring router 2 with all the default values, a network engineer cannot see any route received in router 1. How should the engineer solve the issue?
- A. Modify the router ID to be the interface IP on the serial.
- B. Modify the IP address or mask of the interface to a valid one.
- C. Set up a priority different than 0 in the interface.
- D. Set the network type in S1/0 to point-to-point.
正解: B
質問 53
What are three requirements for a static IPv6-in-IPv4 tunnel? (Choose three.)
- A. Each tunnel endpoint must support IPv4 and IPv6.
- B. A static IPv4 address must be configured.
- C. Cisco Express Forwarding must be enabled.
- D. A dynamic IPv4 address must be configured.
- E. A dynamic IPv6 address must be configured.
- F. A static IPv6 address must be configured.
正解: A,B,F
質問 54
Refer to the exhibit.
Routers R1, R2. R3, and R4 have been configured to run OSPF. and router R5 is running EIGRP Traffic from R1 to R5 is expected to pass via R4. but OSPF routing has calculated the best path via R3. Which action corrects the problem?
- A. Reconfigure R1 in Area 0.
- B. Configure R3 to use metric-type 1 with a higher metric than R4.
- C. Change the metric-type value on R3 to 2.
- D. Configure R1 with a static route to the R5 networks and set R5 as the next hop.
正解: C
質問 55
Refer to the exhibit.
Which effect of this configuration is true?
- A. It sets the hold timer to 30 seconds and the keepalive timer to 240 seconds
- B. It sets the keepalive timer to 30 milliseconds and the hold timer to 240 milliseconds
- C. It sets the keepalive timer to 30 seconds and the hold timer to 240 seconds.
- D. It sets the hold timer to 30 milliseconds and the keepalive timer to 240 milliseconds
正解: C
解説:
Reference:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/command/irg-cr-book/bgps1.
html#wp1552800140
質問 56
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.)
正解:
解説:
質問 57
Which cost is the default when redistributing routes from BGP to OSPF?
- A. automatic
- B. 0
- C. infinite
- D. 1
正解: B
質問 58
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 same interface cannot be advertised in two different IS-IS instances
- B. The IS-IS "ISP" and "ISP2" instances are unrelated and unable to intercommunicate
- C. The configured IS-IS NSEL value is not allowing the routing systems to establish a neighborship
- D. The interface mode ip router is-is command was not included in the script
正解: A
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 59 
Refer to the exhibit. Why is neighbor 10.1.5.5 stuck in "2WAY" state?
- A. Router ID 10.1.5.5 is not reachable from R2
- B. OSPF authentication has failed between R2 and 10.1.5.5
- C. It is an expected behavior when OSPF network type is broadcast
- D. OSPF parameters (Area ID or hello interval) are mismatched between R2 and 10.1.5.5
正解: C
解説:
Explanation/Reference: https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/13683-11.html
質問 60
Refer to the exhibit.
A network operator wants to expand the segment routing global block in upcoming maintenance. The operator must ensure that the changes to the segment routing global block have no adverse impacts on the prefix-sid associated with the loopback0 interface used within the OSPF domain.
Which command can the operator use to enforce R2 to have a strict prefix-sid assignment to loopback0?
- A. Option D
- B. Option B
- C. Option A
- D. Option C
正解: D
質問 61
Which two differences should be considered when deciding whether to implement to implement routing policies or route maps? (Choose two.)
- A. Route policies require sequence numbers, but route maps are implemented without sequencing.
- B. Route maps are supported in Cisco 10S Software and routing policies are supported in Cisco IOS XR Software.
- C. Route maps are implemented using hierarchical policies, but routing policies must be implemented sequentially.
- D. Route maps require an explicit deny at the end of the sequence, but routing policies have an implicit deny at the end of the program.
- E. Sequences are added after implementing a route map, but routing policies must be reconfigured when change is needed.
正解: B,E
質問 62
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. A primary path must be manually installed
- B. TenGigE0/2 interface provides the alternate path
- C. TenGigE0/1 interface provides the alternate path
- D. A backup path must be statically installed
正解: B
質問 63
Refer to the exhibit.
While configuring router 2 with all the default values, a network engineer cannot see any route received in router 1. How should the engineer solve the issue?
- A. Modify the router ID to be the interface IP on the serial.
- B. Modify the IP address or mask of the interface to a valid one.
- C. Set up a priority different than 0 in the interface.
- D. Set the network type in S1/0 to point-to-point.
正解: B
質問 64
Refer to the exhibit.
Which task must you perform on interface g1/0/0 to complete the SSM implementation?
- A. enable CDP
- B. disable IGMP
- C. configure OSPFv3
- D. configure IGMPv3
正解: D
質問 65
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 action fixes the issue?
- A. Change HMAC-MD5 to HMAC-SHA1-20
- B. Configure the send and accept lifetime under key 1
- C. Change HMAC-MD5 to MD5
- D. Change HMAC-MD5 to HMAC-SHA1-12
正解: B
質問 66
In a PIM-SM environment, which mechanism determines the traffic that a receiver receives?
- A. The RP on the shared tree floods traffic out of all PIM configured interfaces.
- B. The receiver explicitly requests traffic from each desired source, which responds by sending all traffic.
- C. The receiver explicitly requests traffic from a single source, which responds by forwarding all traffic.
- D. The receiver explicitly requests its desired traffic from the RP on the shared tree.
正解: B
質問 67
Refer to the exhibit.
Which two commands must the engineer configure for the company's PIM-PIM network to enable Auto-RP mappings to be sent over the FastEthernet0/0 interface without affecting normal operation? (Choose two)
- A. enable sparse-dense mode
- B. enable dense mode
- C. enable auto-rp listener
- D. enable Auto-RP announcements
- E. enable sparse-mode
正解: A,C
質問 68
Refer to the exhibit.
A network engineer implemented this segment routing configuration. Which statement about the output is true?
- A. This range conflicts with the segment routing local block range.
- B. A nondefault segment routing global block range is being used on this device.
- C. The default segment routing global block range is being used on this device.
- D. The device must be reloaded for these ranges to be allocated and used.
正解: B
解説:
Reference:
segment-routing-book/seg-routing-global-block.html
質問 69
Refer to the exhibit.
Which effect of this configuration is true?
- A. It sets the hold timer to 30 seconds and the keepalive timer to 240 seconds
- B. It sets the keepalive timer to 30 milliseconds and the hold timer to 240 milliseconds
- C. It sets the keepalive timer to 30 seconds and the hold timer to 240 seconds.
- D. It sets the hold timer to 30 milliseconds and the keepalive timer to 240 milliseconds
正解: C
質問 70
An engineer is working to implement segment routing protocol on the customer's core network. Which step should the engineer take before the segment routing is enabled and is running with BGP?
- A. Segment routing must be configured with EIGRP.
- B. MPLS must be configured.
- C. Segment routing must be configured with ISIS.
- D. Explicit-null must be configured for all neighbors.
正解: B
質問 71
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