Question 1

What is the purpose of a .dockerignore file?

Options :

A : It lists files existing in a Docker image which should be excluded when building a derivative image.

B : It specifies files that Docker does not submit to the Docker daemon when building a Docker image

C : It exists in the root file system of containers that should ignore volumes and ports provided by Docker.

D :

It must be placed in the top level directory of volumes that Docker should never attach automatically to a container.

E : It specifies which parts of a Dockerfile should be ignored when building a Docker image.

Answer: B

Question 2

Which of the following tasks are part of a hypervisor’s responsibility? (Choose two.)

Options :

A : Create filesystems during the installation of new virtual machine guest operating systems.

B : Provide host-wide unique PIDs to the processes running inside the virtual machines in order to ease interprocess communication between virtual machines.

C : Map the resources of virtual machines to the resources of the host system.

D : Manage authentication to network services running inside a virtual machine.

E : Isolate the virtual machines and prevent unauthorized access to resources of other virtual machines.

Answer: C,E

Question 3

What is true about containerd?

Options :

A : It is a text file format defining the build process of containers.

B : It runs in each Docker container and provides DHCP client functionality.

C : It uses runc to start containers on a container host.

D : It is the initial process run at the start of any Docker container.

E : It requires the Docker engine and Docker CLI to be installed.

Answer: C

Question 4

A clone of a previously used virtual machine should be created. All VM specific information, such as user

accounts, shell histories and SSH host keys should be removed from the cloned disk image. Which of the

following tools can perform these tasks?

Options :

A : virt-reset

B : virt-sparsify

C : virt-rescue

D : virt-sysprep

E : virt-wipe

Answer: D

Question 5

Which of the following commands moves the libvirt domain web1 from the current host system to the host

system host2?

Options :

A : virsh node-update host1=-dom:web1 host2=+dom:web1

B : virsh pool-add host2 web1

C : virsh migrate web1 qemu+ssh://host2/system

D : virsh patch web1 .Domain.Node=host2

E : virsh cp .:web1 host2:web1

Answer: C

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