CompTIA Network+ (N10-006) — Question 16

There is a network looping problem after installing some switches. The switch vendor suggested the use of 802.1d.
Which of the following is the MOST probable reason the vendor made this suggestion?

Answer options

• A. It is a rapid version of spanning tree that uses BPDU to detect problems
• B. It is a regular version of port mirroring that uses hellow packets to detect loops
• C. It is a simple version of spanning tree that uses BPDU to detect problems
• D. It is a rapid version of port mirroring that uses BPDU to detect problems

Correct answer: A

Explanation

The correct answer is A because 802.1d refers to the Spanning Tree Protocol (STP), which is designed to prevent loops in network topologies and uses Bridge Protocol Data Units (BPDUs) to detect and manage these issues. Options B and D incorrectly describe port mirroring, which is unrelated to loop prevention, while option C refers to a simpler version of STP but does not include the rapid capabilities that option A does.