2026年最新の保証された成功できる300-510問題集でCiscoのPDF問題
格別な練習Implementing Cisco Service Provider Advanced Routing Solutions問題集で最速合格させます
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質問 # 124
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. R1 (config-router)#summary-address 1.0.0.0 255.0.0.0 level-1-2
- B. R1(config-router)#summary-address 1.0.0.0 255.0.0.0 level-2
- C. R1(config-router)#no summary-address 1.0.0.0 255.0.0.0 level-1
- D. R1(config-router)#summary-address 1.0.0.0 255.0.0.0 level-1
正解：D
質問 # 125
Refer to the exhibit.
OSPF is an interior routing protocol on the network. R2 Is In the backbone area, and R4 is In a totally NSSA area. R5 announces only the 0.0.0.0/0 route to R4 via BGP. R4 is configured with redistribute bgp 736 metric- type 2. After the most recent maintenance window. R2 no longer has the default route via R4. Which action must the network engineer take to correct the reachability problem?
- A. Configure ip route 0.0.0.0 0.0.0.0 nullO under the global router configuration on router R4.
- B. Configure default-information-originate under the OSPF configuration on router R4.
- C. Configure area 2 nsta no-summary under the global router configuration on router R2.
- D. Configure area 2 nssa translate type7 no-suppress-fa under the OSPF configuration on router R2.
正解：C
質問 # 126
Refer to the exhibit. CE1 is the gateway router into the provider network via PE1.
A network operator must inject a default route into OSPF area 0.
All devices inside area 0 must be able to reach PE1.
Which configuration achieves this goal?
- A. Option B
- B. Option D
- C. Option C
- D. Option A
正解：C
解説：
https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/47868-ospfdb9.html
質問 # 127 
Refer to the exhibit. Which effect of this configuration is true?
- A. It sets the keepalive timer to 30 seconds and the hold timer to 240 seconds.
- B. It sets the hold timer to 30 seconds and the keepalive timer to 240 seconds
- C. It sets the keepalive timer to 30 milliseconds and the hold timer to 240 milliseconds
- D. It sets the hold timer to 30 milliseconds and the keepalive timer to 240 milliseconds
正解：A
解説：
Explanation
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/command/irg-cr-book/bgp-s1.html#wp1552800140
質問 # 128
Refer to the exhibit.
Which task must be performed on interface g1/0/0 to complete the SSM implementation?
- A. configure IGMPv3
- B. configure OSPFv3
- C. enable CDP
- D. disable IGMP
正解：A
質問 # 129
After an engineer configures BGP in R1, it starts receiving this message
*Jun 29 13:30:50.122: %BGP-5-ADJCHANGE: neighbor 192.168.10.1 Down User reset Jun 29 13:30:52.341: %BGP-3-NOTIFICATION: sent to neighbor 192.168.10.1 2/6 (unacceptable hold time)
0 bytes
Which action makes the peering come back up again?
- A. Set up a minimum hold-down timer higher.
- B. Set up a hold-down timer higher.
- C. Make a soft reset to the peer.
- D. Set up a hello timer higher.
正解：A
質問 # 130
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 must define an explicit path to router 2
- C. Router 1 and router 2 must define the RSVP bandwidth reserved on the physical interfaces
- D. Router 1 must have Cisco MPLS TE enabled on interface gigabitethernet0/1
正解：D
質問 # 131
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. Disable traffic engineering so that traffic prefers the IGP path
- B. Enable MPLS TE fast reroute on router R1 and Link and Node protection on router R2.
- C. Implement Link and Node protection on routers R2 and R7.
- D. Configure IBGP full mesh for faster convergence.
正解：B
質問 # 132
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. Associate the default route with a VRF
- B. Configure the default route under any routing protocol other than IS-IS
- C. Add the default-information originate command to the configuration
- D. Configure R1 as a Layer 1 router
正解：C
質問 # 133
Refer to the exhibit.
An administrator is troubleshooting network issues on a customer's network PE1 cannot form an LDP relationship with PE2 using LDP ID 192 168.1.1. Due to this connectivity issue, the customer's routes behind both PE routers cannot be exchanged. Which action must the administrator take to correct the problem?
- A. Configure PE1 with a static route to 192 168.1.1.
- B. Create a targeted LDP session on PE2 to override the missing routing table entry on PEL
- C. Configure PE2 to automatically select its own LDP router ID with 192.168.1.1.
- D. Enable LDP session protection on the link that P1 uses as the next hop to PE2.
正解：A
質問 # 134
Refer to the exhibit. Router 1 and Routed have shared routes in the OSPF database but the routes are missing from their routing tables. Checking me prefix-list configuration on both routers, the engineer confirmed all networks are allowed. What action should the engineer take to fa the problem?
- A. Switch the DR and BDR roles between the two routers
- B. Configure the two routers with different hello and dead timer values
- C. Configure interface Senal1/0 on Router1 as a point-to-point interface
- D. Configure the two routers with different process IDs
正解：C
質問 # 135
Refer to the exhibit. OSPF is an interior routing protocol on the network. Routers R4 and R6 are in area 0, and all tunnels are in area 2. R4 is connected to R6 with a 1 Gbps link and with 100 Mbps links to the rest of the LAN. After the most recent maintenance window, a network engineer noticed that R4 is using a suboptimal route toward 10.173.12.10 instead of the route via R6.
Which action must the network engineer take to correct reachability toward 10.173.12.10/24?
- A. Configure ip ospf cost 120 under the Gi0/0 interface on R4.
- B. Configure ip ospf 0 area 0 under tunnel 2 on both R4 and R5.
- C. Configure auto-cost reference-bandwidth 1000 under the global OSPF configuration on R4.
- D. Configure ip ospf 2 area 0 under tunnel 3 on both R6 and R5.
正解：C
質問 # 136 
Refer to the exhibit MPLS traffic from the packet core that is connected to router RX (10 10 101) to the radio network that is connected to router RB (10 10 10 6) uses the longer route RB R2 RY RX RX and R2 are configured with a default value of LDP hello and hold intervals The team verified that OSPF neighborship in Area 0 is established between RX and R2 Which action must be taken to choose the shortest path and resolve the issue?
- A.
- B.
- C.
- D.
正解：D
質問 # 137 
Refer to the exhibit. The service provider operations team was alerted that hub site traffic from BGP AS
65101 to AS 65201 uses a non-primary path via the R5-R6 link. IBGP peering between R1 and R2 is up. and no fiber failure has been reported on the R2-R3 link The team determined that the traffic flow between
10.10.10.1 and 192.168.30.1 is not considering the R1-R2-R3-R4 path. Which action resolves this issue?
- A. Change the metric attribute to 20 with neighbor 10.10.10.5 on R1.
- B. Set the local-preference to the default value with BGP neighbor 10 10.10.3 on R2 for receiving routes.
- C. Change the local-preference attribute to 50 with neighbor 10.10 10 5 on R1
- D. Add metric 5 with BGP neighbor 10.10.10.6 on R5for receiving routes.
正解：C
質問 # 138
Refer to the exhibit. An engineer is troubleshooting connectivity issues on the MPLS core network. A customer connected through R4 cannot reach the OSPF domain on R5. While checking the routing table of R1, the engineer cannot see all the routes from R3 and R5. Which task must the engineer perform so that R4 is able to reach R5?
- A. Enable OSPF on the Area-0 routers and configure MP-BGP between routers R1 and R3.
- B. Enable route filtering between routers R1 and R3.
- C. Enable MP-BGP peering on routers R1, R3, R4, and R5.
- D. Enable OSPF peering and configure route redistribution between routers R4 and R1.
正解：C
質問 # 139
What is used by SR-TE to steer traffic through the network?
- A. path policy
- B. dynamic rules
- C. shortest path calculated by IGP
- D. explicit maps
正解：A
解説：
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
質問 # 140
Refer to the exhibit.
Refer to the exhibit. Multicast traffic destined from T1 and T2 routers to RP routers works well. A network engineer observes problems with multicast traffic flows between Site-A and Site-B. Site-A users fail to receive multicast stream on Site-B via RPTY site, while Site-B users fail to receive multicast stream on Site-Avia RPTZ site. Which action must be implemented to resolve the issues?
- A. Allow the OSPF and MSDP packets on the firewall.
- B. Establish MDSP peering with interface IP subnet.
- C. Configure Site-A and Site-B in 10.80.14804
- D. Configure direct OSPF peering between Site-A and Ste-B
正解：A
質問 # 141
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 GLOP is permitted
- B. Only the administratively scoped range is permitted
- C. Only ASM is permitted
- D. Only the default SSM range is permitted
正解：D
質問 # 142
What is enabled by default on Cisco IOS-XR routers and cannot be disabled?
- A. BFD
- B. SSH server
- C. Multicast routing
- D. IPv4 and IPv6 CEF
- E. IPv6 routing
- F. CDP
正解：D
質問 # 143
Which statement about enabling segment routing for IGPs is true?
- A. Segment routing can be enabled only under the routing process
- B. Segment routing must first be enabled under then routing process and then globally
- C. Segment routing can be enabled only globally
- D. Segment routing must first be enabled globally and then under the routing process
正解：D
解説：
Reference:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/seg_routing/configuration/xe-16-6/segrt-xe-16-6- book/sr-ospfv2-node-sid.html
質問 # 144
Refer to the exhibit.
Router 1 is a core ABR in a Cisco Unified MPLS environment. All of the router 1 BGP peers are established, but traffic between customers is failing. Which BGP configuration must be added to the configuration?
- A. It must be configured with a route reflector
- B. It must be configured with PIC edge
- C. It must be configured for graceful restart
- D. It must be configured with send labels
正解：D
質問 # 145
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
正解：C
質問 # 146
Refer to the exhibit.
An engineer is troubleshooting IS-IS configuration between two areas. IS-IS Area-A network 30.1.1.0/24 is leaked into IS-IS Area-B. R2 is failing to filter the route updates from network 10.1.1.0/24. Which configuration must the engineer apply to resolve the issue?
- A. R2(config)# access-list 101 deny ip any 10.1.1.0 0.0.0.127
R2(config)# access-list 101 permit ip any 30.1.1.0 0.0.0.63
R2(config)# access-list 101 deny ip any 0.0.0.0 0.0.0.0
R2(config)# interface fastethernet 0/0
R2(config-if)# ip router isis 121
R2(config-if)# router isis 121
R2(config-router)# distribute-list 101 in - B. R2(config)# ip prefix-list List1 seq 3 deny 10.1.1.0/24
R2(config)# ip prefix-list List1 seq 5 permit 30.1.1.0/24 ge 25 1e
R2(config)# ip prefix-list List1 seq 10 permit 0.0.0.0/le 32
R2(config)# interface fastethernet 0/0
R2(config-if)# ip router isis 122
R2(config-if)# router isis 122
R2(config-router)# distribute-list prefix List1 in - C. R1(config)# ip prefix-list List2 seq 5 deny 10.1.1.0/24
R1(config)# interface fastethernet 0/0
R1(config-if)# ip router isis 100
R1(config-if)# router isis 100
R1(config-router)# distribute-list gateway List2 in
R (config-if)# router isis 150
R1(config-router)# distribute-list route-map Map1 in - D. R2(config)# ip prefix-list List2 seq 5 deny 10.1.1.0/24
R2(config)# interface fastethernet 0/0
R2(config-if)# ip router isis 100
R2(config-if)# router isis 100
R2(config-router)# distribute-list gateway List2 in
正解：C
質問 # 147
Refer to the exhibit. After configuring IS-IS on routers R1 and R2, an engineer notices that only the loopback interface at 2000:1::1 /96 is known to router R2. Which change must be made so that only Loopback2 is advertised from R1 to R2?
- A. Remove the ipv6 router isis area1 command under the Loopback2 interface on R1.
- B. Remove the advertise passive-only command under the IS-IS address family ipv6 configuration
- C. Configure the router isis area1 command under the Loopback0 interface on R1.
- D. Remove the passive-interface Loopback0 command under the router isis area1 configuration.
正解：A
質問 # 148
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 originated through AS 65517 have the local preference set to 150.
- B. Routes that have passed 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：B
質問 # 149
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