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CV0-002 · Question #296

A user has submitted a ticket to request additional VMs due to long wait times for online ordering. Given the snapshot of the resources in the table below: Which of the following is the BEST option fo

The correct answer is D. Add memory to the web server to increase capacity.. To resolve long wait times for online ordering, which points to a performance bottleneck, the administrator should identify the most constrained resource impacting the user experience. Adding memory to the web server is the best option if the web server is experiencing memory exh

Troubleshooting

Question

A user has submitted a ticket to request additional VMs due to long wait times for online ordering. Given the snapshot of the resources in the table below:

Which of the following is the BEST option for the administrator to resolve the ticket?

Exhibit

CV0-002 question #296 exhibit

Options

  • AAdd vCPU to the database server to increase capacity.
  • BAdd disks to the database server to increase capacity.
  • CAdd virtual network ports to the web server to increase capacity.
  • DAdd memory to the web server to increase capacity.

How the community answered

(27 responses)
  • A
    7% (2)
  • B
    30% (8)
  • C
    15% (4)
  • D
    48% (13)

Why each option

To resolve long wait times for online ordering, which points to a performance bottleneck, the administrator should identify the most constrained resource impacting the user experience. Adding memory to the web server is the best option if the web server is experiencing memory exhaustion under load, leading to slow processing and increased wait times for users.

AAdd vCPU to the database server to increase capacity.

Adding vCPU to the database server would only help if the database server is CPU-bound, which is not necessarily the primary cause of 'long wait times' for web-based online ordering.

BAdd disks to the database server to increase capacity.

Adding disks to the database server (for I/O capacity or storage) would only help if the database's disk I/O is the bottleneck, which is not explicitly indicated as the primary issue for 'long wait times' over memory/CPU for web servers.

CAdd virtual network ports to the web server to increase capacity.

Adding virtual network ports to the web server generally would not improve performance for 'long wait times'; network port count is rarely a bottleneck unless there is a specific configuration limiting concurrent connections per port.

DAdd memory to the web server to increase capacity.Correct

Adding memory to the web server is the best option if the web server is the bottleneck and is running out of available memory. Web servers, especially when handling dynamic content, many concurrent connections, or application processes, consume significant memory, and a shortage can lead to excessive paging, slow processing of requests, and long wait times for users.

Concept tested: Web application performance troubleshooting - memory bottleneck

Source: https://learn.microsoft.com/en-us/azure/azure-monitor/app/performance-web-app-memory

Topics

#Performance tuning#Resource optimization#Web application scaling#Troubleshooting bottlenecks

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