Azure introduction, session 02

What problems solves the container technology? (SELECT TWO)

• It's a full VM replacement, including hardware emulation.

• It's a partial VM replacement, as it makes possible running applications on any Operating System.

• It provides an easy way of setting process isolation mechanisms.

• It makes easier software distribution, packaging the whole OS/Runtime/App stack.

What is the most common way of executing containers on Linux?

• Applying chmod +x to the image, and then running it.

• Installing a cli tool that will directly start the process from an image by interacting with the kernel.

• Installing a lightweight VM technology (QEMU) that will run the container.

• Deploying a service that will interact with the kernel for launching the process. Using a cli tool for instructing the service.

What mechanisms prevents bloating the image building context?

• Writing a succinct Dockerfile.

• Removing files from the context using .gitignore.

• Removing files from the context using .dockerignore.

• Directly mounting the host disk with the -v option.

How do you specify from which container registry will a host download the image?

• By editing the docker.ini file and typing the proper setting.

• By including the address of the registry as a prefix of the image name.

• By setting an environment variable.

• By adding the --registry option in the docker command.

What step is required for allowing an App Service application to download images from a private registry?

• Attaching the corresponding role to the App Service.

• Setting a SAS token as a parameter in the image name.

• Configuring the App Service with the proper Access Key.

• Providing a security identity to the image and configuring its role.