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Question 79 - JN0-105 discussion

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Your router has a route to the 10.1.1.0/24 network with a next hop of r jet.

In this scenario, which action will your router perform when traffic destined to the 10.1.1.0/24 network is received?

A.
The traffic will be discarded and an ICMP unreachable message will be sent to the destination of the traffic.
Answers
A.
The traffic will be discarded and an ICMP unreachable message will be sent to the destination of the traffic.
B.
The traffic will be discarded and an ICMP unreachable message will be sent to the source of the traffic.
Answers
B.
The traffic will be discarded and an ICMP unreachable message will be sent to the source of the traffic.
C.
The traffic will be redirected using a default route.
Answers
C.
The traffic will be redirected using a default route.
D.
The traffic will be silently discarded.
Answers
D.
The traffic will be silently discarded.
Suggested answer: D

Explanation:

In a scenario where a router has a route to a specific network (in this case, 10.1.1.0/24) with a next hop that is unreachable or incorrectly specified (e.g., 'r jet' seems to be a typo or an undefined entity), the router will typically discard the traffic destined for that network. This action is taken because the router cannot determine a valid path to forward the traffic. Unlike some scenarios where the router might generate an ICMP (Internet Control Message Protocol) unreachable message, in many configurations, especially in production networks, the traffic might be silently discarded without providing feedback to the sender, as generating ICMP messages for all undeliverable packets could lead to additional network congestion and potential security concerns.

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asked 18/09/2024
owais mansoor
46 questions
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