AZ-104 Question 247
Single answerYou are an Azure administrator overseeing a busy e-commerce Azure VM hosting a web API. Recently, the API's response times have spiked. Azure Monitor shows CPU utilization at around 20% and memory usage at about 45%. Disk I/O metrics do not reveal any bottleneck. Which metric in Azure Monitor should you check first to identify if network constraints are causing the slowdown?
- A
Available Memory
- B
Network Out
- C
Number of Threads
- D
Disk Used Percentage
Show answer and explanation
Correct answer: B
Explanation
Given that CPU, memory, and disk I/O metrics show no anomalies, looking at the outbound network traffic metric (Network Out) is the best next step to determine if there is a network bottleneck contributing to the increased response times.
- A. Incorrect.
Monitoring available memory is useful, but in this scenario memory usage is already known to be stable (45%), making a network-related metric more relevant.
- B. Correct.
Network Out indicates the outbound traffic from the VM, which can reveal network bandwidth issues responsible for slower response times.
- C. Incorrect.
Number of Threads helps measure concurrent operations but doesn’t directly indicate network congestion or bandwidth issues.
- D. Incorrect.
Disk Used Percentage is helpful for storage capacity monitoring but does not directly diagnose network-related performance problems.