You are troubleshooting a performance issue for an Azure Application Gateway.
You need to compare the total requests to the failed requests during the past six hours.
What should you use?
A . Metrics in Application Gateway
B . Diagnostics logs in Application Gateway
C . NSG flow logs in Azure Network Watcher
D . Connection monitor in Azure Network Watcher
Answer: A
Explanation:
Application Gateway currently has seven metrics to view performance counters.
Metrics are a feature for certain Azure resources where you can view performance counters in the portal. For Application Gateway, the following metrics are available:
You can filter on a per backend pool basis to show healthy/unhealthy hosts in a specific backend pool
References: https://docs.microsoft.com/en-us/azure/application-gateway/application-gatewaydiagnostics#Metrics