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Which of the following best defines a Virtual Machine (VM) in cloud computing?
a. A physical server running in a data center
b. A software-based emulation of a physical computer
c. A mainframe computer
d. A remote workstation
Answer: b. A software-based emulation of a physical computeronlineexammaker+2
What is the main role of a hypervisor in a virtualized cloud environment?
a. Managing cloud storage
b. Allocating physical resources to VMs
c. Encrypting network data
d. Monitoring user behavior
Answer: b. Allocating physical resources to VMssanfoundry+2
In which cloud service model do users get direct access to VMs?
a. Platform as a Service (PaaS)
b. Software as a Service (SaaS)
c. Infrastructure as a Service (IaaS)
d. Function as a Service (FaaS)
Answer: c. Infrastructure as a Service (IaaS)scribd+1
Which type of hypervisor runs directly on the host hardware?
a. Type 1 hypervisor
b. Type 2 hypervisor
c. Embedded hypervisor
d. Cloud hypervisor
Answer: a. Type 1 hypervisorcybotech+1
Which component provides the isolation between different VMs on the same host?
a. Host operating system
b. Hypervisor
c. Guest operating system
d. Physical CPU
Answer: b. Hypervisoronlineexammaker+1
What is the main benefit of using VMs in the cloud?
a. Improved physical hardware lifespan
b. Simultaneous multi-OS usage on one machine
c. Larger disk partitions
d. Faster network speeds
Answer: b. Simultaneous multi-OS usage on one machineinterviewbit+1
Which of the following is NOT a characteristic of VMs?
a. Isolation from other VMs
b. Direct hardware access without virtualization
c. Independent guest operating system
d. Dynamic resource allocation
Answer: b. Direct hardware access without virtualizationscribd+1
What does VM “live migration” refer to?
a. Upgrading the VM’s guest OS
b. Moving a VM between physical hosts without downtime
c. Backing up the VM to cloud storage
d. Cloning the VM to a remote region
Answer: b. Moving a VM between physical hosts without downtimetutorialsinhand+1
Which of the following is responsible for managing virtual network interfaces in a VM environment?
a. Physical NIC
b. Hypervisor
c. Virtual memory manager
d. Host BIOS
Answer: b. Hypervisorcybotech+2
Which statement about VM resource allocation is correct?
a. All VMs receive equal resources by default
b. Resources are allocated dynamically based on workload
c. VMs share a single IP address
d. Storage cannot be adjusted after initialization
Answer: b. Resources are allocated dynamically based on workloadonlineexammaker+1
What is a guest operating system in the context of virtualization?
a. The OS running directly on the hardware
b. The OS installed inside the VM
c. The cloud provider’s operating system
d. The embedded hypervisor firmware
Answer: b. The OS installed inside the VMscribd+1
Which of the following is a primary security concern for VMs?
a. Virtual machine sprawl
b. High disk latency
c. Static IP allocation
d. Legacy BIOS support
Answer: a. Virtual machine sprawlscribd+1
In VM deployment, what does “snapshot” most often refer to?
a. A photo of the data center
b. A point-in-time copy of the VM state
c. Complete OS installation logs
d. Hardware configuration template
Answer: b. A point-in-time copy of the VM stateonlineexammaker+1
Para-virtualization requires what for VMs?
a. No changes to guest OS
b. Modified guest OS for optimal performance
c. Type 1 hypervisor
d. Only Linux-based systems
Answer: b. Modified guest OS for optimal performancecybotech+1
What is the function of hardware-assisted virtualization extensions (Intel VT-x, AMD-V)?
a. Provides virtual storage arrays
b. Enhances VM performance by direct hardware access
c. Powers off idle VMs
d. Encrypts VM traffic
Answer: b. Enhances VM performance by direct hardware accessscribd+1
Which cloud provider is a leader in VM-based IaaS services?
a. Dropbox
b. Amazon Web Services (AWS)
c. WhatsApp
d. Google AdSense
Answer: b. Amazon Web Services (AWS)interviewkickstart+1
In VM terminology, what is a “host”?
a. The physical machine running VMs
b. The VM’s guest OS
c. A remote user
d. Hypervisor firmware
Answer: a. The physical machine running VMsgtu-mcq+1
Which is a VM deployment benefit in disaster recovery?
a. Difficult restoration after failure
b. Rapid failover and rollback
c. Backup tapes only
d. Manual network reconfiguration
Answer: b. Rapid failover and rollbackscribd+1
Which type of virtualization emulates the entire hardware environment for VMs?
a. Container virtualization
b. Full virtualization
c. Application virtualization
d. Storage virtualization
Answer: b. Full virtualizationcybotech+1
What isolates VMs from each other in a public cloud?
a. Encrypted storage arrays
b. Hypervisor
c. Shared host RAM
d. Multi-factor authentication
Answer: b. Hypervisoronlineexammaker+1
What is the main advantage of virtual machine consolidation?
a. Increases physical server count
b. Maximizes hardware utilization
c. Decreases network speeds
d. Reduces VM creation
Answer: b. Maximizes hardware utilizationinterviewbit+1
Which VM feature reduces downtime during maintenance?
a. Cold migration
b. Live migration
c. Hard reboot
d. Encryption
Answer: b. Live migrationtutorialsinhand+1
In virtualization, what does the term “overcommitment” indicate?
a. Sharing IP addresses
b. Allocating more resources to VMs than physically available
c. Installing more hypervisors
d. Deduplication of RAM
Answer: b. Allocating more resources to VMs than physically availablescribd+1
What does VM “cloning” refer to?
a. Compressing disk images
b. Creating an exact copy of an existing VM
c. Encrypting snapshot data
d. Live OS patching
Answer: b. Creating an exact copy of an existing VMonlineexammaker+1
Which cloud deployment model allows dedicated VMs for a single organization?
a. Public cloud
b. Private cloud
c. Community cloud
d. Hybrid cloud
Answer: b. Private cloudinterviewbit+1
What is a virtual CPU (vCPU)?
a. The physical server’s main processor
b. A hypervisor-assigned CPU resource for a VM
c. A CPU cooling unit
d. Only used for database VMs
Answer: b. A hypervisor-assigned CPU resource for a VMcybotech+1
Which process occurs when a VM is transferred without interrupting its operation?
a. Cold migration
b. Live migration
c. VM backup
d. Resource throttling
Answer: b. Live migrationtutorialsinhand+1
What is a primary challenge in VM data security?
a. Achieving scalability
b. Managing multi-tenancy risks
c. Increasing hardware costs
d. Backup delays
Answer: b. Managing multi-tenancy risksscribd+1
Which resource can VMs share dynamically in the cloud?
a. Internet bandwidth only
b. CPU, memory, storage
c. Desktop wallpaper
d. User credentials only
Answer: b. CPU, memory, storageinterviewbit+1
Which VM management task can be automated by orchestration tools?
a. Manual disk cloning
b. VM provisioning and scaling
c. Peripheral device installation
d. BIOS patching
Answer: b. VM provisioning and scalingscribd+1
What is “VM sprawl”?
a. A type of security protocol
b. Proliferation of uncontrolled, unnecessary VMs
c. Efficient VM resource allocation
d. Hypervisor update process
Answer: b. Proliferation of uncontrolled, unnecessary VMsstudocu+1
The guest OS on a VM can be:
a. Only Windows
b. Only Linux
c. Any supported OS
d. Only Unix
Answer: c. Any supported OSscribd+1
What is resource pooling in the context of VMs?
a. Each VM has a private server
b. Sharing physical resources among VMs for efficiency
c. All VMs shut down after peak usage
d. Public IP assignment to all VMs
Answer: b. Sharing physical resources among VMs for efficiencyscribd+1
Virtual disks for VMs are also known as:
a. Tape drives
b. Storage area networks
c. Virtual Hard Disks (VHD)
d. PCI adapters
Answer: c. Virtual Hard Disks (VHD)onlineexammaker+1
Which technology allows VMs to bypass the hypervisor for improved I/O performance?
a. Para-virtualization
b. DirectPath I/O or SR-IOV
c. Cold migration
d. Encrypted boot
Answer: b. DirectPath I/O or SR-IOVcybotech+1
Which type of virtualization requires guest OS modification?
a. Full virtualization
b. Para-virtualization
c. Hardware-assisted virtualization
d. Desktop virtualization
Answer: b. Para-virtualizationscribd+1
What can result from poor VM lifecycle management?
a. Reduced software licensing
b. Increased VM sprawl
c. Reduced compliance
d. Faster network speeds
Answer: b. Increased VM sprawlstudocu+1
Which VM feature helps achieve high availability?
a. Hard reboot
b. Live migration
c. Passive monitoring
d. Static DNS
Answer: b. Live migrationscribd+1
VM templates are used to:
a. Monitor CPU usage
b. Quickly deploy standardized VM configurations
c. Change IP addresses
d. Perform defragmentation
Answer: b. Quickly deploy standardized VM configurationsscribd+1
Which solution can decrease the impact of VM “noisy neighbor” problem in cloud environments?
a. VM resource limits
b. Shared RAM
c. Hyper-threading only
d. Increasing disk size
Answer: a. VM resource limitsinterviewkickstart+1
Which is a benefit of VM snapshots in development environments?
a. Delayed recovery
b. Quick rollback to previous states
c. Reduced CPU performance
d. Network throttling
Answer: b. Quick rollback to previous statesonlineexammaker+1
Multi-tenancy in cloud VMs can lead to:
a. Isolated user workloads
b. Security risks if not managed properly
c. Guaranteed physical separation
d. Only private cloud deployment
Answer: b. Security risks if not managed properlyscribd+1
What is essential for performance in VM-based environments?
a. Manual IP allocation
b. Proper sizing and resource allocation
c. Fixed guest OS version
d. Encrypted RAM
Answer: b. Proper sizing and resource allocationscribd+1
Which VM operation allows backup while the VM is running?
a. Cold backup
b. Hot backup
c. Offline cloning
d. Hard shutdown
Answer: b. Hot backuptutorialsinhand+1
What is the result of VM resource overallocation?
a. Improved VM stability
b. Resource contention and performance degradation
c. Enhanced multi-tenancy
d. Automatic failover
Answer: b. Resource contention and performance degradationonlineexammaker+1
Security hardening of VMs typically includes:
a. Disabling firewall
b. Applying latest patches and restricting access
c. Sharing admin credentials
d. Ignoring audit logs
Answer: b. Applying latest patches and restricting accessstudocu+1
The “noisy neighbor” effect in cloud VMs refers to:
a. Physical disk errors
b. Resource contention caused by other VMs
c. Network packet drops
d. VM template corruption
Answer: b. Resource contention caused by other VMsinterviewkickstart+1
Which orchestration tool is commonly used for VM automation in cloud?
a. Microsoft Paint
b. Ansible
c. Solitaire
d. Outlook
Answer: b. Ansibleinterviewbit+1
What type of virtualization requires hardware support from the CPU?
a. Hardware-assisted virtualization
b. Application virtualization
c. Containerization
d. Storage virtualization
Answer: a. Hardware-assisted virtualizationcybotech+1
Which aspect of VMs promotes cloud elasticity?
a. Manual-only provisioning
b. Virtualization enabling rapid resource scaling
c. Static on-premises servers
d. Fixed hardware allocation
Answer: b. Virtualization enabling rapid resource scalingscribd+1

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