CompTIA Network+ Question B-97

A technician is setting up a new network and wants to create redundant paths through the network. Which of the following should be implemented to prevent performance degradation?

A. Port mirroring
B. Spanning tree
C. ARP inspection
D. VLAN

Correct Answer: B

Explanation:
The Spanning Tree Protocol (STP) is a network protocol that ensures a loop-free topology for any bridged Ethernet local area network. The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them. Spanning tree also allows a network design to include spare (redundant) links to provide automatic backup paths if an active link fails, without the danger of bridge loops, or the need for manual enabling/disabling of these backup links.

CompTIA Network+ Question A-88

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?

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

CompTIA Network+ Question A-74

When two or more links need to pass traffic as if they were one physical link, which of the following would be used to satisfy the requirement?

A. Port mirroring
B. 802.1w
C. LACP
D. VTP

Correct Answer: C

Explanation:
The Link Aggregation Control Protocol (LACP) enables you to assign multiple physical links to a logical interface, which appears as a single link to a route processor.