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完全版300-510練習テスト177別格な問題と解釈が待ってます。今すぐゲット！
質問 # 10
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
正解：A
質問 # 11
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. Switch the IGPs running in the core from IS-IS to OSPF to support a Cisco MPLS TE tunnel from PE1 to PE2.
- B. Verify the MPLS LSPs.
- C. Configure BGP between CE and PE routers.
- D. Confirm that IS-IS is running with metric-style narrow.
正解：D
質問 # 12
Refer to the exhibit.
What is the effect of this configuration?
- A. It sets the keepalive timer to 30 seconds and the hold timer to 240 seconds.
- B. It sets the keepalive timer to 30 milliseconds and the hold timer to 240 milliseconds.
- C. It sets the hold timer to 30 milliseconds and the keepalive timer to 240 milliseconds.
- D. It sets the hold timer to 30 seconds and the keepalive timer to 240 seconds.
正解：A
質問 # 13
Drag and Drop Question
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 # 14
What is enabled by default on Cisco IOS-XR routers and cannot be disabled?
- A. Multicast routing
- B. IPv4 and IPv6 CEF
- C. SSH server
- D. BFD
- E. CDP
- F. IPv6 routing
正解：B
質問 # 15
Refer to the exhibit.
Which effect of this configuration is true?
- A. It sets the keepalive timer to 30 milliseconds and the hold timer to 240 milliseconds
- B. It sets the hold timer to 30 milliseconds and the keepalive 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 seconds and the keepalive timer to 240 seconds
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 # 16
You have configured MSDP peering between two autonomous systems that pass traffic between two sites, but the peering has failed to come up.
Which task do you perform to begin troubleshooting the problem?
- A. Verify that PIM-DM is configured on the source interface
- B. Verify that both source interfaces are reachable from both peers
- C. Verify that multicast has been disabled globally
- D. Verify that the two MSDP peers allow asymmetric routing
正解：B
質問 # 17
Refer to the exhibit.
An administrator is troubleshooting Internet access issues on a customer's network. After applying this ISIS configuration to R1, the administrator notices that it fails to redistribute the default route into IS-IS. After checking the connectivity between the ISIS router and the ISP router the engineer confirmed there is Layer 3 connectivity between them Which action should be taken to correct the problem?
- A. Configure the default route under any routing protocol other than IS-IS
- B. Associate the default route with a VRF
- C. Add the default-information originate command to the configuration
- D. Configure R1 as a Layer 1 router
正解：C
質問 # 18
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. Switch the IGPs running in the core from IS-IS to OSPF to support a Cisco MPLS TE tunnel from PE1 to PE2.
- B. Verify the MPLS LSPs.
- C. Configure BGP between CE and PE routers.
- D. Confirm that IS-IS is running with metric-style narrow.
正解：D
質問 # 19
Refer to the exhibit.
Which statement about this configuration is true?
- A. Router 1 sends up to two paths to neighbor 192.168.1.1 for all routes
- B. Router 1 receives only the best path from neighbor 192.168.1.1
- C. Router 1 sends and receives multiple best paths from neighbor 192.168.1.1
- D. Router 1 receives up to two paths from neighbor 192.168.1.1 for all routes in the same AS
正解：C
質問 # 20
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. higher local preference on the prefix coming from 192.168.0.1
- B. lower local preference on the prefix coming from 192.168.0.2
- C. weight of 0 on the prefix coming from 192.168.0.2
- D. weight of 100 on the prefix coming from 192.168.0.1
正解：A
質問 # 21
Refer to the exhibit.
Routers RA and RB are IS-IS peers configured for NSF but router RC is an IS-IS peer without NSF capability If RA undergoes processor switchover what is the effect on the network environment?
- A. All peer relationships remain up, but the link-state database is rebuilt on each device
- B. If RC is operating without the Cisco configuration option only 2 routers tear down their peering relationships and re-establish peering
- C. If RC is operating without the Cisco configuration option all three routers tear down their peering relationships and re-establish peering
- D. All peer relationships remain up and the link-state database is unchanged
正解：A
質問 # 22
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 A
- C. Option B
- D. Option C
正解：D
質問 # 23
Which command is used to enable BIDIR-PIM under global configuration mode for Cisco IOS XE Sofware?
- A. ip multicast-routing
- B. ipv4 pim bidir-enable
- C. ip pim bidir-enable
- D. ip pim bidir
正解：C
質問 # 24
Refer to the exhibit. After troubleshooting BGP traffic steering issue, which action did the network operator take to achieve the correct effect of this configuration?
- A. Routes that have passed through AS 65517 have the local preference set to 150.
- B. Routes that have originated through AS 65517 have the local preference set to 150.
- C. Routes that have passed through AS 65517 have the local preference set to 150 and the traffic is denied.
- D. Routes directly attached to AS 65517 have the local preference set to 150.
正解：A
質問 # 25
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