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You create an Azure virtual machine named VM1 in a resource group named RG1. You discover that VM1 performs slower than expected. You need to capture a network trace on VM1. What should you do?
A.
From Diagnostic settings for VM1, configure the performance counters to include network counters.
B.
From the VM1 blade, configure Connection troubleshoot.
C.
From the VM1 blade, install performance diagnostics and run advanced performance analysis
D.
From Diagnostic settings for VM1, configure the log level of the diagnostic agent.
Suggested Answer:C🗳️
The performance diagnostics tool helps you troubleshoot performance issues that can affect a Windows or Linux virtual machine (VM). Supported troubleshooting scenarios include quick checks on known issues and best practices, and complex problems that involve slow VM performance or high usage of CPU, disk space, or memory. Advanced performance analysis, included in the performance diagnostics tool, includes all checks in the performance analysis, and collects one or more of the traces, as listed in the following sections. Use this scenario to troubleshoot complex issues that require additional traces. Running this scenario for longer periods will increase the overall size of diagnostics output, depending on the size of the VM and the trace options that are selected. References: https://docs.microsoft.com/en-us/azure/virtual-machines/troubleshooting/performance-diagnostics
Its C. Azure Performance Diagnostics VM Extension helps collect performance diagnostic data from Windows VMs. The extension performs analysis, and provides a report of findings and recommendations to identify and resolve performance issues on the virtual machine. This extension installs a troubleshooting tool called PerfInsights.
https://docs.microsoft.com/en-us/azure/virtual-machines/troubleshooting/performance-diagnostics-vm-extension
Go to VM blade -> "Diagnose and solve problems" -> "troubleshooting Tools" -> "Performance diagnostics". Just Click on it and install. So option "C" is 100% right answer.
Network traces can be captured by Advanced performance analysis. So the answer is correct.
https://docs.microsoft.com/en-us/azure/virtual-machines/troubleshooting/how-to-use-perfInsights#advanced-performance-analysis
To troubleshoot performance issues on this virtual machine, install and run performance diagnostics.
https://docs.microsoft.com/en-us/azure/virtual-machines/troubleshooting/performance-diagnostics
I have tested in my Lab. Answer is C
Connection Troubleshoot provides the capability to check if traffic is allowed or denied based off the inbound and outbound network security rules from a VM with an IPv4 address or service tag.
Not what we are looking for. We look for performance issues not for connectivity issues.
I think it should be A. Drill down to VM resource, Diagnostic Settings > Enable guest-OS level logging > From Performance counters, include network (options also include CPU, memory, disk along with app/SQL related logs).
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