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Question 39 - JN0-351 discussion

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Which two statements about redundant trunk groups on EX Series switches are correct? (Choose two.)

A.
Redundant trunk groups load-balance traffic across two designated uplink interfaces.
Answers
A.
Redundant trunk groups load-balance traffic across two designated uplink interfaces.
B.
If the active link fails, then the secondary link automatically takes over.
Answers
B.
If the active link fails, then the secondary link automatically takes over.
C.
Layer 2 control traffic is permitted on the secondary link
Answers
C.
Layer 2 control traffic is permitted on the secondary link
D.
Redundant trunk groups must be connected to the same aggregation switch.
Answers
D.
Redundant trunk groups must be connected to the same aggregation switch.
Suggested answer: B, D

Explanation:

Redundant Trunk Groups (RTGs) on EX Series switches provide a simple solution for network recovery when a trunk port on a switch goes down1.They are configured on the access switch and contain two links: a primary or active link, and a secondary link1.Therefore, option B is correct because if the active link fails, the secondary link automatically starts forwarding data traffic without waiting for normal spanning-tree protocol convergence1.

Option D is also correct.In a typical enterprise network composed of distribution and access layers, RTGs are used where one Access switch is connected to two different uplink switches2.This implies that RTGs must be connected to the same aggregation switch2.

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asked 18/09/2024
Zden Bohm Autocont a.s.
27 questions
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