305-300

305-300 practice questions, page 2 of 3, with answer review and explanations.

Question 6

Which command within virsh lists the virtual machines that are running on the current host?

  1. view
  2. list-vm
  3. list
  4. show
  5. list-all

Question 7

What is the purpose of cloud-init?

  1. Replace common Linux init systems, such as systemd or SysV init.
  2. Assign an IaaS instance to a specific computing node within a cloud.
  3. Standardize the configuration of infrastructure services, such as load balancers or virtual firewalls in a cloud.
  4. Orchestrate the creation and start of multiple related IaaS instances.
  5. Prepare the generic image of an IaaS instance to fit a specific instance’s configuration.

Question 8

What is the purpose of the packer inspect subcommand?

  1. Retrieve files from an existing Packer image.
  2. Execute commands within a running instance of a Packer image.
  3. List the artifacts created during the build process of a Packer image.
  4. Show usage statistics of a Packer image.
  5. Display an overview of the configuration contained in a Packer template.

Question 9

What is the purpose of capabilities in the context of container virtualization?

  1. Map potentially dangerous system calls to an emulation layer provided by the container virtualization.
  2. Restrict the disk space a container can consume.
  3. Enable memory deduplication to cache files which exist in multiple containers.
  4. Allow regular users to start containers with elevated permissions.
  5. Prevent processes from performing actions which might infringe the container.

Question 10

Which directory is used by cloud-init to store status information and configuration information retrieved from external sources?

  1. /var/lib/cloud/
  2. /etc/cloud-init/cache/
  3. /proc/sys/cloud/
  4. /tmp/.cloud/
  5. /opt/cloud/var/