You are integrating an Azure Boards project and a GitHub repository.
You need to authenticate Azure Boards to GitHub.
Which two authentication methods can you use? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.

You have an Azure DevOps organization named Contoso, an Azure DevOps project named Project1, an Azure subscription named Sub1, and an Azure key vault named vault1.
You need to ensure that you can reference the values of the secrets stored in vault1 in all the pipelines of Project1. The solution must prevent the values from being stored in the pipelines.
What should you do?

You have a free tier of an Azure DevOps organization named Contoso. Contoso contains 10 private projects.
Each project has multiple jobs with no dependencies.
You frequently run the jobs on five self-hosted agents but experience long build times and frequently queued builds.
You need to minimize the number of queued builds and the time it takes to run the builds.
What should you do?

You have an Azure subscription that contains Azure DevOps build pipelines.
You to implement pipeline caching by using the cache task
HOW should you complete the YAML definition? TO answer, select the appropriate options in the answer area.

You use Azure SQL Database Intelligent Insights and Azure Application Insights for monitoring.
You need to write ad-hoc queries against the monitoring data.
Which query language should you use?