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Question 408 - N10-008 discussion

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A network administrator is investigating a performance issue on a dual-link connection—VPN and MPLS—to a partner network. The MPLS is the primary path, and the VPN is used as a backup. While communicating, the delay is measured at 18ms, which is higher than the 6ms expected when the MPLS link is operational but lower than the 30ms expected tor the VPN connection. Which of the following will MOST likely point to the root cause of the Issue?

A.
Checking the routing tables on both sides to ensure there is no asymmetric routing
Answers
A.
Checking the routing tables on both sides to ensure there is no asymmetric routing
B.
Checking on the partner network for a missing route pointing to the VPN connection
Answers
B.
Checking on the partner network for a missing route pointing to the VPN connection
C.
Running iPerf on both sides to confirm the delay that Is measured is accurate
Answers
C.
Running iPerf on both sides to confirm the delay that Is measured is accurate
D.
Checking for an incorrect VLAN assignment affecting the MPLS traffic
Answers
D.
Checking for an incorrect VLAN assignment affecting the MPLS traffic
Suggested answer: A

Explanation:

Asymmetric routing can occur when two routers have different paths for the same two hosts, resulting in increased latency and possible packet loss. According to the CompTIA Network+ Study Manual, “If the path from the source to the destination is not the same in both directions, the packets will take different routes and the latency can increase significantly.” To confirm this, the network administrator should check the routing tables on both sides of the connection and ensure that the same path is used in both directions.

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asked 02/10/2024
ANNA RIBALTA
28 questions
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