You have an Azure subscription named Subscription1. You deploy a Linux virtual machine named VM1 to Subscription1. You need to monitor the metrics and the logs of VM1. What should you use? 

Answer options:

A. Azure HDInsight
B. Linux Diagnostic Extension (LAD) 3.0
C. the AzurePerformanceDiagnostics extension
D. Azure Analysis Services

C

You can use extensions to configure diagnostics on your VMs to collect additional metric data. The basic host metrics are available, but to see more granular and VM-specific metrics, you need to install the Azure diagnostics extension on the VM. The Azure diagnostics extension allows additional monitoring and diagnostics data to be retrieved from the VM. Reference: https://docs.microsoft.com/en-us/azure/virtual-machines/linux/tutorial-monitoring