Unit 2 Cloud Computing Quiz

What is the purpose of a Virtual Machine (VM) in cloud computing?

• To reduce resource utilization

• To limit application flexibility

• To increase computer performance

• To decrease resource sharing among users

What is the middleware layer between the underlying hardware and virtual machines called?

• Virtual Machine Monitor (VMM)

• Operating System (OS)

• Hypervisor

• Virtual Cluster

Which level of virtualization involves emulating a given Instruction Set Architecture (ISA) by the ISA of the host machine?

• Library Support level

• Hardware Abstraction level

• ISA level

• Operating System level

What is the advantage of full virtualization over para-virtualization?

• Higher performance

• Lower CPU overhead

• Better device performance

• No need to modify guest OS

What is the purpose of a hypervisor in cloud computing?

• To enhance application flexibility

• To isolate VMs from each other

• To provide direct access to hardware resources

• To manage the underlying hardware through virtualization

Which technique simplifies virtualization by adding an additional mode to x86 processors called privilege mode level?

• Network Virtualization

• Hardware Assisted CPU Virtualization

• Memory Virtualization

• I/O Virtualization

Which system provides virtual disk images to VMs in a virtualized environment?

• Xen

• Eucalyptus

• Parallax

• VMware vSphere

What is the main challenge to VM security in cloud computing?

• Copying and sharing of encapsulated machine state

• Intrusion Detection System (IDS)

• Lack of encryption

• Unauthorized access by cloud providers

What is the purpose of a Honeypot in intrusion detection?

• To provide secure isolation

• To encrypt data

• To attract and monitor attackers

• To manage virtual clusters

Which technique is used to reduce the total size of VM images in virtual storage management?

• Paravirtualization

• Global File System

• Content Addressable Storage (CAS)

• Virtual Disk Mapping