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Question 709 - N10-008 discussion

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After a company installed a new IPS, the network is experiencing speed degradation. A network administrator is troubleshooting the issue and runs a speed test. The results from the different network locations are as follows:

Which of the following is the most likely issue?

A.
Packet loss
Answers
A.
Packet loss
B.
Bottlenecking
Answers
B.
Bottlenecking
C.
Channel overlap
Answers
C.
Channel overlap
D.
Network congestion
Answers
D.
Network congestion
Suggested answer: B

Explanation:

The most likely issue is bottlenecking. Bottlenecking occurs when a component or device limits the performance or capacity of the network.In this case, the IPS (intrusion prevention system) may be causing a bottleneck by inspecting and filtering the incoming and outgoing traffic, which reduces the speed and bandwidth available for the network devices12

To confirm this issue, the network administrator can compare the speed test results before and after installing the IPS, and check the IPS configuration and logs for any errors or warnings.The network administrator can also try to bypass the IPS temporarily and run the speed test again to see if there is any improvement3

If the IPS is indeed the cause of the bottleneck, the network administrator can try to optimize the IPS settings, such as adjusting the inspection rules, thresholds, and priorities, to reduce the processing overhead and latency.Alternatively, the network administrator can upgrade the IPS hardware or software, or add more IPS devices to balance the load and increase the throughput45

1: What is Network Congestion? Common Causes and How to Fix Them?- GeeksforGeeks2: Network congestion - Wikipedia3: How to Fix Packet Loss - Lifewire4: How to Optimize Your IPS Performance - Cisco5: How to Avoid Network Bottlenecks - TechRepublic

asked 02/10/2024
Ali S Zahedi
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