Q#1: A virtual machine is:
(A) A software implementation of a computer
(B) A physical CPU only
(C) A disk partition
(D) A type of thread
Answer: (A) A software implementation of a computer
Q#2: Virtualization allows:
(A) Multiple OS to run on a single physical machine
(B) CPU to execute faster
(C) Disk formatting
(D) File encryption
Answer: (A) Multiple OS to run on a single physical machine
Q#3: The software that manages virtual machines is called:
(A) Hypervisor
(B) Kernel
(C) Compiler
(D) Loader
Answer: (A) Hypervisor
Q#4: Which is NOT a type of hypervisor?
(A) Type 0
(B) Type 1
(C) Type 2
(D) Type 3
Answer: (A) Type 0
Q#5: Type 1 hypervisor runs:
(A) Directly on hardware
(B) On a host OS
(C) On a virtual disk only
(D) On CPU cache
Answer: (A) Directly on hardware
Q#6: Type 2 hypervisor runs:
(A) On top of a host operating system
(B) Directly on hardware
(C) Only in cloud
(D) Only in embedded systems
Answer: (A) On top of a host operating system
Q#7: Examples of Type 1 hypervisors include:
(A) VMware ESXi, Microsoft Hyper-V
(B) VirtualBox, VMware Workstation
(C) Linux kernel
(D) Windows Explorer
Answer: (A) VMware ESXi, Microsoft Hyper-V
Q#8: Examples of Type 2 hypervisors include:
(A) VirtualBox, VMware Workstation
(B) VMware ESXi, Hyper-V
(C) Linux kernel
(D) Windows Server
Answer: (A) VirtualBox, VMware Workstation
Q#9: Virtual machines provide:
(A) Isolation between multiple OS instances
(B) Faster CPU only
(C) Disk defragmentation
(D) File compression
Answer: (A) Isolation between multiple OS instances
Q#10: A guest OS is:
(A) The OS running inside a VM
(B) The physical host OS
(C) Disk firmware
(D) CPU scheduler
Answer: (A) The OS running inside a VM
Q#11: A host OS is:
(A) The underlying OS on the physical machine
(B) The OS inside a VM
(C) Disk partition table
(D) CPU mode
Answer: (A) The underlying OS on the physical machine
Q#12: Full virtualization provides:
(A) Complete simulation of hardware to the guest OS
(B) Partial simulation
(C) No simulation
(D) Only CPU virtualization
Answer: (A) Complete simulation of hardware to the guest OS
Q#13: Para-virtualization requires:
(A) Guest OS modification
(B) No guest OS modification
(C) Disk partitioning
(D) Thread scheduling
Answer: (A) Guest OS modification
Q#14: Hardware-assisted virtualization uses:
(A) CPU extensions like Intel VT-x or AMD-V
(B) Disk cache
(C) RAM only
(D) GPU exclusively
Answer: (A) CPU extensions like Intel VT-x or AMD-V
Q#15: Advantages of VMs include:
(A) Flexibility, isolation, efficient resource utilization
(B) Only faster CPU
(C) Only smaller memory
(D) Disk formatting
Answer: (A) Flexibility, isolation, efficient resource utilization
Q#16: Snapshot in VM terminology means:
(A) Saving the current state of a VM for future restoration
(B) Taking a screenshot
(C) Disk backup
(D) CPU speed test
Answer: (A) Saving the current state of a VM for future restoration
Q#17: Cloning a VM means:
(A) Creating an identical copy of an existing VM
(B) Partitioning disk
(C) Scheduling CPU
(D) Encrypting memory
Answer: (A) Creating an identical copy of an existing VM
Q#18: VM migration is:
(A) Moving a VM from one host to another
(B) Copying disk blocks
(C) Allocating CPU cores
(D) Encrypting files
Answer: (A) Moving a VM from one host to another
Q#19: Live migration means:
(A) VM continues running while being migrated
(B) VM is shut down before migration
(C) Only memory is migrated
(D) Only CPU context is migrated
Answer: (A) VM continues running while being migrated
Q#20: VM isolation ensures:
(A) Faults or crashes in one VM do not affect others
(B) CPU speed increases
(C) Disk defragmentation
(D) Thread prioritization
Answer: (A) Faults or crashes in one VM do not affect others
Q#21: Virtual CPU (vCPU) represents:
(A) A slice of a physical CPU allocated to a VM
(B) Entire CPU only
(C) Disk block
(D) Thread only
Answer: (A) A slice of a physical CPU allocated to a VM
Q#22: Virtual memory in VMs is:
(A) Managed by the guest OS or hypervisor
(B) Managed by CPU only
(C) Only disk-based
(D) Only RAM-based
Answer: (A) Managed by the guest OS or hypervisor
Q#23: VMware Workstation is a:
(A) Type 2 hypervisor
(B) Type 1 hypervisor
(C) CPU extension
(D) Memory module
Answer: (A) Type 2 hypervisor
Q#24: VMware ESXi is a:
(A) Type 1 hypervisor
(B) Type 2 hypervisor
(C) Disk utility
(D) CPU scheduler
Answer: (A) Type 1 hypervisor
Q#25: Virtual machines improve:
(A) Server consolidation and resource utilization
(B) CPU speed only
(C) Disk size only
(D) Thread priority
Answer: (A) Server consolidation and resource utilization
Q#26: Nested virtualization is:
(A) Running a VM inside another VM
(B) Partitioning disk
(C) Scheduling threads
(D) Memory paging
Answer: (A) Running a VM inside another VM
Q#27: Disadvantages of VMs include:
(A) Performance overhead due to virtualization
(B) Free CPU cycles
(C) Increased memory only
(D) Faster disk only
Answer: (A) Performance overhead due to virtualization
Q#28: VM tools/additions are used to:
(A) Improve performance and enable guest-host communication
(B) Backup disks
(C) Format memory
(D) Schedule CPU
Answer: (A) Improve performance and enable guest-host communication
Q#29: Thin provisioning in virtualization allows:
(A) Allocating virtual storage on-demand
(B) Allocating all disk space at once
(C) Encrypting RAM
(D) CPU scheduling
Answer: (A) Allocating virtual storage on-demand
Q#30: VM templates are used for:
(A) Standardized creation of VMs
(B) Disk formatting
(C) CPU allocation
(D) Memory paging
Answer: (A) Standardized creation of VMs
Q#31: Hypervisor trap occurs when:
(A) Guest OS executes privileged instruction
(B) Disk is full
(C) CPU overheats
(D) Memory is fragmented
Answer: (A) Guest OS executes privileged instruction
Q#32: Virtual networking allows:
(A) VMs to communicate using virtual switches
(B) Only disk sharing
(C) Only memory sharing
(D) CPU scheduling
Answer: (A) VMs to communicate using virtual switches
Q#33: Paravirtualized drivers are used for:
(A) Improving I/O performance of VMs
(B) Memory encryption
(C) Disk defragmentation
(D) CPU scheduling
Answer: (A) Improving I/O performance of VMs
Q#34: VM overcommitment means:
(A) Allocating more virtual resources than physically available
(B) Disk formatting
(C) CPU priority
(D) Memory paging
Answer: (A) Allocating more virtual resources than physically available
Q#35: VMware vMotion is for:
(A) Live migration of VMs
(B) Disk backup
(C) CPU scheduling
(D) Memory allocation
Answer: (A) Live migration of VMs
Q#36: VMware snapshots allow:
(A) Rolling back to a previous state
(B) Encrypting CPU
(C) Disk defragmentation
(D) Thread scheduling
Answer: (A) Rolling back to a previous state
Q#37: Security isolation in VMs prevents:
(A) Malware from affecting other VMs
(B) CPU overheating
(C) Disk fragmentation
(D) Memory paging
Answer: (A) Malware from affecting other VMs
Q#38: VM consolidation ratio refers to:
(A) Number of VMs per physical host
(B) Disk usage only
(C) Memory usage only
(D) CPU usage only
Answer: (A) Number of VMs per physical host
Q#39: Ephemeral VMs are:
(A) Temporary VMs used for testing or development
(B) Permanent OS installations
(C) Disk partitions
(D) Memory snapshots
Answer: (A) Temporary VMs used for testing or development
Q#40: VMware ESXi host requires:
(A) Dedicated physical server
(B) Only memory
(C) Only CPU
(D) Disk only
Answer: (A) Dedicated physical server
Q#41: VM live migration ensures:
(A) Minimal downtime
(B) CPU halt
(C) Disk formatting
(D) Memory backup
Answer: (A) Minimal downtime
Q#42: Resource pooling in virtualization means:
(A) Combining physical resources for flexible allocation
(B) Allocating fixed memory
(C) CPU only
(D) Disk only
Answer: (A) Combining physical resources for flexible allocation
Q#43: VMware HA provides:
(A) High availability for virtual machines
(B) Disk backup only
(C) Memory paging only
(D) CPU scheduling only
Answer: (A) High availability for virtual machines
Q#44: VM monitoring tools are used to:
(A) Track performance, usage, and health of VMs
(B) Format disks
(C) Allocate CPU only
(D) Backup memory
Answer: (A) Track performance, usage, and health of VMs
Q#45: Overhead in VMs is caused by:
(A) Virtualization layer processing
(B) Disk fragmentation
(C) Memory leaks
(D) File copying
Answer: (A) Virtualization layer processing
Q#46: VM isolation failure can lead to:
(A) Security breaches
(B) Faster CPU
(C) Memory allocation
(D) Disk formatting
Answer: (A) Security breaches
Q#47: Nested paging improves:
(A) Memory virtualization performance
(B) Disk performance
(C) CPU scheduling
(D) File copying
Answer: (A) Memory virtualization performance
Q#48: VM density is:
(A) Number of VMs per physical server
(B) Memory size
(C) Disk capacity
(D) CPU cores
Answer: (A) Number of VMs per physical server
Q#49: Thin VM image refers to:
(A) Minimal OS and applications pre-installed
(B) Full OS image
(C) Disk-only image
(D) Memory snapshot
Answer: (A) Minimal OS and applications pre-installed
Q#50: Key benefit of VMs in cloud computing is:
(A) Elasticity and resource isolation
(B) Faster CPU only
(C) Disk compression
(D) Memory encryption
Answer: (A) Elasticity and resource isolation