701-100 Exam Dumps : DevOps Tools Engineer

Docker retrieves a ZIP archive which is extracted into the container’s root file system.

Multiple stacked images are retrieved and layered on top of each other.

A flat hard disk image is downloaded once per container and mounted as the root file system.

The registry merger all components of the image into one file which is shipped to Docker.

The container is built from an ISO file along with a configuration for an unattended installation.

cloud-init provides the cloud-init-worker command which has to be invoked periodically within the running instance.

cloud-init provides systemd units which must be included in several stages of the booting process of the instance.

cloud-init provides its own startup mechanism which replaces the instance’s original init system, such as systemd.

cloud-init provides a Linux kernel module that must be included and loaded in the instance’s initramfs.

cloud-init provides the cloud-init-daemon service which is launched during startup and keeps the instance in sync with the desired configuration.

Vagrant uses a vagrant-specific hypervisor called VagrantVM.

Vagrant has to be run within a running virtual machine which is not controlled by Vagrant.

Vagrant ships with an embedded version of VirtualBox.

Vagrant uses so-called provides which control external hypervisors such as VirtualBox.

Vagrant generates virtual machine images but does not provide a mechanism to run them.