Virtualization vs Containerization Quiz

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Paravirtualization is a type of bare metal hypervisor that runs directly on host hardware.

True

Virtual Machines (VM) in OS virtualization are real physical machines.

False

A hypervisor is a process that executes virtual machines, allocating the guest machine's hardware resources to the host machine.

False

One of the advantages of virtualization is to run software/peripherals that cannot run on host hardware.

True Signup and view all the answers

The technique of paravirtualization adds a significant layer of abstraction which enhances performance.

False Signup and view all the answers

Running multiple operating systems simultaneously on a single machine is a benefit of virtualization.

True Signup and view all the answers

Virtualization tools like Oracle VM VirtualBox simulate the central processing unit of the host machine.

True Signup and view all the answers

Containers are heavier than full virtualization in terms of resource usage.

False Signup and view all the answers

Containers such as Docker and LXD allow for running multiple operating systems on the host machine simultaneously.

False Signup and view all the answers

In a containerized environment, each container has its own isolated memory space but shares system resources like drivers and kernel with the host.

True Signup and view all the answers

When a container is destroyed, its data is retained for future use.

False Signup and view all the answers

A server can be identified through its IP address.

True Signup and view all the answers

Docker pull automatically downloads a docker image.

False Signup and view all the answers

The option -d in docker run starts a container in detached mode.

True Signup and view all the answers

Docker ps -a lists only running containers.

False Signup and view all the answers

Docker restart stops a running container.

False Signup and view all the answers

Docker exec -it allows executing an application within a running container.

True Signup and view all the answers

In type 2 full virtualization, the hypervisor simulates the whole computer but does not allow guest access to host's CPU, RAM, and storage.

False Signup and view all the answers

Containers share the host kernel and drivers but have dedicated and isolated memory for each environment.

True Signup and view all the answers

Paravirtualization is a type of virtualization where the hypervisor runs directly on the host hardware, providing performance close to real hardware.

True Signup and view all the answers

In full virtualization, the guest OS must be adapted to work with the hypervisor directly on the host hardware.

False Signup and view all the answers

Type 2 hypervisors are more common in enterprise environments compared to type 1 hypervisors.

False Signup and view all the answers

Full virtualization can only virtualize guest OS with different hardware architecture than the host OS.

False Signup and view all the answers

The command 'docker ps -aq | xargs -r docker rm -f' removes all containers, even the running ones.

False Signup and view all the answers

Docker images without running containers can be removed using the command 'docker images --no-trunc | awk '{ print $3 }' | xargs -r docker rmi'.

False Signup and view all the answers

Docker volumes with a 'dangling' status can be removed using the command 'docker volume ls -qf dangling=true | xargs -r docker volume rm'.

False Signup and view all the answers

Containers can execute multiple shells simultaneously within the same container using the command 'docker exec -it mon-linux-shell sh'.

True Signup and view all the answers

A process in Docker is equivalent to a container.

False Signup and view all the answers

Virtualization vs Containerization Quiz

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Questions and Answers

Paravirtualization is a type of bare metal hypervisor that runs directly on host hardware.

Virtual Machines (VM) in OS virtualization are real physical machines.

A hypervisor is a process that executes virtual machines, allocating the guest machine's hardware resources to the host machine.

One of the advantages of virtualization is to run software/peripherals that cannot run on host hardware.

The technique of paravirtualization adds a significant layer of abstraction which enhances performance.

Running multiple operating systems simultaneously on a single machine is a benefit of virtualization.

Virtualization tools like Oracle VM VirtualBox simulate the central processing unit of the host machine.

Containers are heavier than full virtualization in terms of resource usage.

Containers such as Docker and LXD allow for running multiple operating systems on the host machine simultaneously.

In a containerized environment, each container has its own isolated memory space but shares system resources like drivers and kernel with the host.

When a container is destroyed, its data is retained for future use.

A server can be identified through its IP address.

Docker pull automatically downloads a docker image.

The option -d in docker run starts a container in detached mode.

Docker ps -a lists only running containers.

Docker restart stops a running container.

Docker exec -it allows executing an application within a running container.

In type 2 full virtualization, the hypervisor simulates the whole computer but does not allow guest access to host's CPU, RAM, and storage.

Containers share the host kernel and drivers but have dedicated and isolated memory for each environment.

Paravirtualization is a type of virtualization where the hypervisor runs directly on the host hardware, providing performance close to real hardware.

In full virtualization, the guest OS must be adapted to work with the hypervisor directly on the host hardware.

Type 2 hypervisors are more common in enterprise environments compared to type 1 hypervisors.

Full virtualization can only virtualize guest OS with different hardware architecture than the host OS.

The command 'docker ps -aq | xargs -r docker rm -f' removes all containers, even the running ones.

Docker images without running containers can be removed using the command 'docker images --no-trunc | awk '{ print $3 }' | xargs -r docker rmi'.

Docker volumes with a 'dangling' status can be removed using the command 'docker volume ls -qf dangling=true | xargs -r docker volume rm'.

Containers can execute multiple shells simultaneously within the same container using the command 'docker exec -it mon-linux-shell sh'.

A process in Docker is equivalent to a container.

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