102.6

Question 1

Which command can be used to check if the Linux kernel supports virtualization? A) lscpu B) lsmod C) dmesg D) vmstat

Answer 1

A

Question 2

Which of the following is a Type-2 hypervisor? A) KVM B) VirtualBox C) Xen D) VMware ESXi

Answer 2

B

Question 3

Which command lists virtual machines managed by libvirt? A) virsh list B) virsh show C) virt-list D) virt-show

Answer 3

A

Question 4

What does the option ‘vga=ask’ in GRUB configuration do? A) Enables text mode B) Asks for VGA mode during boot C) Disables VGA support D) Auto-detects VGA

Answer 4

B

Question 5

Which of the following can be used to create a virtual machine on KVM? A) virt-install B) vm-create C) kvm-new D) qemu-launch

Answer 5

A

Question 6

How do you enable nested virtualization in KVM? A) Set /sys/module/kvm_intel/nested to 1 B) Enable the VM flag in /proc/cpuinfo C) Install nested-kvm package D) Set CPU architecture to x86

Answer 6

A

Question 7

Which option in a libvirt domain XML file defines the number of CPUs for a guest? A) <cpu> B) <vcpu> C) <processor> D) <cores></cores></processor></vcpu></cpu>

Answer 7

B

Question 8

What is the purpose of the ‘virtio’ drivers in a virtualized environment? A) To provide optimized drivers for virtual devices B) To allow direct hardware access C) To manage VM security D) To control VM network traffic

Answer 8

A

Question 9

Which command is used to manage QEMU/KVM virtual machines? A) qemu-manager B) virt-manager C) kvm-config D) vm-tool

Answer 9

B

Question 10

Which file is commonly used to store disk images for KVM virtual machines? A) .img B) .iso C) .qcow2 D) .vhd

Answer 10

C

Question 11

Which virtualization platform uses ‘dom0’ and ‘domU’ terminology? A) KVM B) VMware C) Xen D) VirtualBox

Answer 11

C

Question 12

Which command can display the capabilities of the current virtualization environment? A) virsh capabilities B) virt-cap C) vmcap show D) qemu-capabilities

Answer 12

A

Question 13

What is the role of the ‘qemu-kvm’ package in a KVM environment? A) It provides virtualization for the KVM hypervisor B) It manages networking for VMs C) It provides graphical interface for VMs D) It enables direct disk access

Answer 13

A

Question 14

What is the primary configuration file for libvirt-managed virtual machines? A) /etc/libvirt/qemu.conf B) /etc/libvirt/vm.xml C) /etc/virt/virsh.conf D) /etc/libvirt/libvirt.xml

Answer 14

A

Question 15

Which command can be used to attach a virtual disk to a running VM? A) virsh attach-disk B) virt-disk add C) kvm-add-disk D) qemu-disk-attach

Answer 15

A

Question 16

Which option defines the amount of memory available to a VM in libvirt’s domain XML file? A) <mem> B) <memory> C) <ram> D) <vcpu></vcpu></ram></memory></mem>

Answer 16

B

Question 17

How do you start a virtual machine using the virsh command? A) virsh start <VM-name> B) virsh launch <VM-name> C) virsh poweron <VM-name> D) virsh boot <VM-name></VM-name></VM-name></VM-name></VM-name>

Answer 17

A

Question 18

Which of the following is a paravirtualized network driver? A) virtio-net B) e1000 C) realtek D) r8169

Answer 18

A

Question 19

What does the ‘virt-manager’ tool do? A) Provides a graphical interface for managing virtual machines B) Configures firewall settings for VMs C) Monitors disk space on virtual disks D) Generates VM reports

Answer 19

A

Question 20

Which Linux kernel module is responsible for managing KVM virtualization? A) kvm-intel B) kvm-cpu C) vm-kernel D) kvm-core

Answer 20

A

Question 21

Which of the following is the default network type used by libvirt? A) NAT B) Bridge C) Host-only D) None

Answer 21

A

Question 22

What is the purpose of ‘virt-clone’? A) To create a copy of an existing VM B) To monitor VM performance C) To manage VM snapshots D) To install virtio drivers

Answer 22

A

Question 23

What does the command ‘virsh shutdown <VM-name>' do? A) Shuts down the virtual machine gracefully B) Forces the VM to shut down C) Powers off the VM immediately D) Restarts the VM</VM-name>

Answer 23

A

Question 24

What is the default location for libvirt’s virtual machine configuration files? A) /etc/libvirt/qemu B) /var/lib/qemu/vm C) /usr/share/qemu/config D) /home/vm/config

Answer 24

A

Question 25

Which command is used to live-migrate a VM to another host? A) virsh migrate B) virt-transfer C) vm-copy D) qemu-move

Answer 25

A

Question 26

Which Linux command is used to list kernel modules related to virtualization? A) lsmod B) modprobe C) lsvm D) modinfo

Answer 26

A

Question 27

What is a key advantage of using the qcow2 disk image format? A) It supports snapshots B) It is faster than raw images C) It uses less CPU resources D) It supports direct I/O

Answer 27

A

Question 28

Which component is essential for hardware virtualization in KVM? A) VT-x or AMD-V CPU support B) NUMA architecture C) SMP support D) HyperThreading

Answer 28

A

Question 29

What does ‘virsh destroy <VM-name>' do? A) It stops the virtual machine immediately B) It deletes the VM from storage C) It uninstalls the VM D) It resets the VM to factory settings</VM-name>

Answer 29

A

Question 30

Which command is used to list all currently active VMs in a KVM environment? A) virsh list –all B) virsh show-vms C) kvm-list D) vmctl list

Answer 30

A