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JN0-347 · Question #41

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

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…

Layer 2 Switching

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.

How the community answered

(19 responses)
  • A
    68% (13)
  • B
    5% (1)
  • C
    5% (1)
  • D
    21% (4)

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

Topics

#redundant trunk groups#EX Series#uplink redundancy#failover

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