JN0-348 Question #41: Real Exam Question with Answer & Explanation

The correct answer is A. Layer 2 control traffic is permitted on the secondary link.. A: While data traffic is blocked on the secondary link, Layer 2 control traffic is still permitted. For example, an LLDP session can be run between two switches on the secondary link. B: The redundant trunk group is configured on the access switch and contains two links: a primar

Question

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

Options

ALayer 2 control traffic is permitted on the secondary link.
BIf the active link fails, then the secondary link automatically takes over.
CRedundant trunk groups load balance traffic across two designated uplink interfaces.
DRedundant trunk groups use spanning tree to provide loop-free redundant uplinks.

Explanation

A: While data traffic is blocked on the secondary link, Layer 2 control traffic is still permitted. For example, an LLDP session can be run between two switches on the secondary link. B: The redundant trunk group is configured on the access switch and contains two links: a primary or active link, and a secondary link. If the active link fails, the secondary link automatically starts forwarding data traffic without waiting for normal spanning-tree protocol convergence. groups-understanding.html

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