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Question 60 - CV0-004 discussion

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A cloud engineer has provisioned a VM for a high-frequency trading application. After the VM is put into production, users report high latency in trades. The engineer checks the last six hours of VM metrics and sees the following:

* CPU utilization is between 30% to 60%.

* Networkln is between 50Kbps and 70Kbps.

* NetworkOut is between 3.000Kpbs and 5.000Kbps.

* DiskReadOps is at 30.

* DiskWriteOps is at 70

* Memory utilization is between 50% and 70%.

Which of the following steps should the engineer take next to solve the latency issue?

A.
Move to a network-optimized instance type as the network throughput is not enough.
Answers
A.
Move to a network-optimized instance type as the network throughput is not enough.
B.
Modify the disk IOPS to a higher value as the disk IO is being bottlenecked at 100 IOPS.
Answers
B.
Modify the disk IOPS to a higher value as the disk IO is being bottlenecked at 100 IOPS.
C.
Increase the memory of the instance as the high-frequency trading application requires more RAM.
Answers
C.
Increase the memory of the instance as the high-frequency trading application requires more RAM.
D.
Increase the instance size to allocate more vCPUs as the CPU utilization is very high.
Answers
D.
Increase the instance size to allocate more vCPUs as the CPU utilization is very high.
Suggested answer: A

Explanation:

Since the NetworkOut is significantly higher than NetworkIn and considering the nature of a high-frequency trading application, the issue most likely lies with network throughput. Moving to a network-optimized instance type would provide higher network bandwidth, which can reduce latency in trades.

Reference: This solution is derived from the Management and Technical Operations domain of the CompTIA Cloud+ objectives, focusing on performance optimization for cloud services.

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asked 02/10/2024
Walter van der Heijden
42 questions
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