Download CCIE SP Written v4.1.400-201.ExamTopics.2025-08-08.20q.tqb

Vendor: CompTIA
Exam Code: 400-201
Exam Name: CCIE SP Written v4.1
Date: Aug 08, 2025
File Size: 2 MB
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Demo Questions

Question 1
Refer to the exhibit. Test Inc. is troubleshooting a routing issue from the LAC to the inside network. Which solution should you configure on the LNS to correct the issue?
  1. The LAC and DMZ facing interfaces cannot be on the same physical interface
  2. The vrf forwarding DMZ command is required on interface Virtual-Template 1
  3. ip tcp adjust-mss on interface Virtual-Template 2 should be set to 1360.
  4. The vrf forwarding DMZ command is required on interface Gi0/1.100
Correct answer: D
Question 2
Refer to the exhibit. The Service Provider is deploying Internet service to its VRF customers by using vrf INTERNET. A dedicated firewall provides NAT functionally towards the Internet. Assume that IP address overlapping between VRFs is not an issue.
Which three configuration steps are required to add Internet service to the VRF customers? (Choose three.)
  1. Export the RD ofvrf INTERNETfrom all customer VRFs.
  2. Import theRD fromvrf INTERNETin all customer VRFs.
  3. C.Leak all VRF routes to the global routing table.
  4. Originate a default route on PE4 invrf INTERNET.
  5. Originate a default route on the firewall invrf INTERNET.
  6. Import the VRF "INTERNET" Route Target in all customer VRFs.
  7. Import the Route Target of all customer VRFs invrf INTERNET.
Correct answer: BCD
Question 3
An IEEE 802.1ad deployments, which three represent valid port models? (Choose three.)
  1. UNI S-port
  2. NNI C-port
  3. NNI S-port
  4. UNI T-port
  5. UNI C-port
  6. NNI
Correct answer: AEF
Question 4
Drag and drop each fast detection mechanism om the left to onto its definition on the right.
Correct answer: To work with this question, an Exam Simulator is required.
Question 5
Refer to the exhibit. After the BGP TCP negotiation between Router A and Router B, what will be the value of the keepalive timer and the hold-down timer, respectively?
  1. 10 seconds and 30 seconds
  2. 10 seconds and 10 seconds
  3. 3 seconds and 9 seconds
  4. 10 seconds and 9 seconds
  5. 60 seconds and 180 seconds
  6. 3 seconds and 10 seconds
  7. 3 seconds and 30 seconds
  8. no value, because BGP negotiation will not be successful
Correct answer: C
Question 6
A service provider is working to develop an evolving security technique toolset in regards to the increasing amount of attacks. In which scenario would the Backscatter Traceback solution is recommended?
  1. Distributed Denial of Service
  2. Network Attack TCP/UDP Scan
  3. Ping of Death
  4. Rogue DNS/DHCP Servers
Correct answer: A
Explanation:
References:
References:
Question 7
A service provider engineering team must design a solution that supports end-to-end LSPs for multiple IGP domains within different AS numbers.
According to RFC 3107, which solution achieves this goal?
  1. LDP and BGP
  2. BGP and send-label
  3. RSVP and IS-IS or OSPF
  4. RSVP and BGP
  5. mLDP
Correct answer: B
Explanation:
References:
References:
Question 8
Which two BGP mechanisms solve the BGP full-mesh paradigm? (Choose two.)
  1. BGP link state
  2. MPLS VPN
  3. route reflectors
  4. hierarchical VPLS
  5. confederation
  6. route policy filtering
  7. community SOO
Correct answer: CE
Question 9
You are enabling NSF for IS-IS. What are two advantages of Cisco NSF variation over IEFT NSF? (Choose two.)
  1. It does not rely on NSF-aware neighbors.
  2. It continues forwarding IP packets until route convergence is complete.
  3. It provides NSR in addition to NSF.
  4. NSF-capable router receives the adjacency and link-state information from NSF-aware neighbors.
  5. It allows the standby RP to take control of the device after a hardware or software fault on the active RP.
Correct answer: AE
Explanation:
Reference:https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/15-0SY/configuration/guide/15_0_sy_swcg/nonstop_forwarding.html
Reference:
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/15-0SY/configuration/guide/15_0_sy_swcg/nonstop_forwarding.html
Question 10
On the BGP Best Path Selection, when two external paths from different EBGP neighbors are received, the oldest path received can be the tie break to select the best path. Which Cisco IOS command ignores this decision criteria and checks the next decision criteria?
  1. bgp best path med missing-as-worst
  2. bgp best path compare-routerid
  3. bgp best path cost-community ignore
  4. bgp best path as-path ignore
Correct answer: B
Explanation:
B: 1 - MostedReference:https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13753-25.html
B: 1 - Mosted
Reference:
https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13753-25.html
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