Question

what can cause a broadcast storm in a network?

a switching loops
b insufficient storage space on network devices
c low cpu utilization
d high bandwidth availability

Explanation:

Define broadcast storms

A broadcast storm occurs when broadcast packets accumulate on a network, consuming significant bandwidth and processing resources, which can lead to network degradation or complete failure.

Analyze the cause of broadcast storms

Using the Spanning Tree Protocol knowledge point
In a redundant Layer 2 network topology without a loop-prevention mechanism, switches continuously forward broadcast frames out of all ports except the receiving port. This creates a loop where frames circulate endlessly, multiplying and causing a broadcast storm.

Evaluate the given options

• A. Switching loops: Directly causes broadcast frames to circulate endlessly, leading to a broadcast storm.
• B. Insufficient storage space: Affects local device logging or configuration storage, not frame forwarding.
• C. Low CPU utilization: Indicates an idle or healthy processor, whereas a storm causes extremely high CPU utilization.
• D. High bandwidth availability: Helps accommodate traffic and does not cause congestion or storms.

Answer:

• (A) Switching loops (Correct answer)
• (B) Insufficient storage space on network devices
• (C) Low CPU utilization
• (D) High bandwidth availability