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Question 575 - N10-008 discussion

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A customer calls the help desk to report that users are unable to access any network resources_ The issue started earlier in the day when an employee rearranged the wiring closet A technician goes to the site but does not observe any obvious damage. The statistics output on the switch indicates high

CPI-J usage, and all the lights on the switch are blinking rapidly in unison_ Which of the following is the most likely explanation for these symptoms?

A.
The switch was rebooted and set to run in safe mode.
Answers
A.
The switch was rebooted and set to run in safe mode.
B.
The line between the switch and the upstream router was removed
Answers
B.
The line between the switch and the upstream router was removed
C.
A cable was looped and created a broadcast storm.
Answers
C.
A cable was looped and created a broadcast storm.
D.
A Cat 6 cable from the modem to the router was replaced with Cat 5e.
Answers
D.
A Cat 6 cable from the modem to the router was replaced with Cat 5e.
Suggested answer: C

Explanation:

A cable was looped and created a broadcast storm is the most likely explanation for the symptoms of high CPU usage and blinking lights on the switch. A cable loop is a situation where a switch port is connected to another switch port on the same switch or another switch, creating a circular path for network traffic. A cable loop can cause a broadcast storm, which is a network phenomenon where a large number of broadcast or multicast packets are flooded on the network, consuming bandwidth and CPU resources. A broadcast storm can cause network congestion, performance degradation, or failure. A cable loop can occur when an employee rearranges the wiring closet without proper documentation or verification. A cable loop can be prevented or detected by using Spanning Tree

Protocol (STP) or loop detection features on the switch. Reference: [CompTIA Network+ Certification Exam Objectives], What Is a Broadcast Storm? | Definition & Examples | Forcepoint

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asked 02/10/2024
Sanjay R Khiani
42 questions
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