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CompTIA A+_ > Chapter 4 Virtualization and Cloud Computing MC > Flashcards

Chapter 4 Virtualization and Cloud Computing MC Flashcards

1
Q

Which cloud computing model allows companies to access software when they
need it but avoid the expense of maintaining the software when they do not need it?

Resource pooling

Rapid elasticity

On-demand

Hybrid

A

On-demand

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2
Q

You have been asked to arrange for your team to develop software in a cloud
environment. Which of the following services will you seek as a solution?

PaaS

SaaS

IaaS

None of the above

A

PaaS

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3
Q

A company requires high security and high reliability for its network services.
What type of cloud environment is likely to meet these requirements?

Public cloud

External cloud

Internal cloud

Infrastructure as a Service

A

Internal cloud

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4
Q

How are most cloud customers billed for their services?

Hourly rate

Daily rate

Weekly subscription

Monthly subscription

A

Hourly rate

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5
Q

What term describes a cloud provider’s ability to rapidly scale up and scale
back computing resources as needed?

Rapid elasticity

Flex data services

Virtual data flexing

Expansive data services

A

Rapid elasticity

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6
Q

Which two of the following are used to create and run a VM? (Choose two.)

Hypervisor

VMM

Emulator

Virtual sphere

A

Hypervisor

VMM

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7
Q

Which of the following is a reproduction of an operating system?

Virtual machine

VMware Fusion

Emulator

Hyper-V

A

Emulator

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8
Q

Which operating systems can be guests on a VM?

Windows

Linux

Unix

None of the above

All of the above

A

All of the above

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9
Q

Which of the following is true?

A 32-bit system can host a 64-bit VM.

A VMM can create only one operating system per hardware device.

A 64-bit system can host a 32-bit system.

Only one VM can run at a time on a workstation with one display

A

A 64-bit system can host a 32-bit system.

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10
Q

Which of the following is true of the BIOS/UEFI when creating a VM?

Hypervisors create their own BIOS/UEFI settings.

The BIOS/UEFI firmware must support VMs.

All BIOS/UEFI firmware supports VMs.

A separate hard disk must be installed for each VM.

A

The BIOS/UEFI firmware must support VMs.

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11
Q

Match each of the following cloud-based models to its description.

Provides access to storage, network services, virtualization, and servers

SaaS

IaaS

PaaS

A

IaaS

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12
Q

Match each of the following cloud-based models to its description.

Gives application developers the opportunity to develop and deploy software in a cloud environment

SaaS

IaaS

PaaS

A

PaaS

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13
Q

Match each of the following cloud-based models to its description.

Enables software to be hosted on remote servers and accessed through
web browsers

SaaS

IaaS

PaaS

A

SaaS

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14
Q

Which of the following are characteristics of a virtual machine? (Choose all
that apply.)

A user can access multiple guest operating systems without rebooting.

32-bit and 64-bit operating systems may be installed on different virtual
machines on a single host machine.

Multiple virtual machines use the same hardware as the host computer.

Running multiple guest operating systems is more expensive than running those same operating systems as host systems.

A

A user can access multiple guest operating systems without rebooting.

32-bit and 64-bit operating systems may be installed on different virtual
machines on a single host machine.

Multiple virtual machines use the same hardware as the host computer.

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15
Q

Which of the following are advantages of cloud computing? (Choose all
that apply.)

Rapid elasticity

DHCP services

Resource pooling

Measured service

A

Rapid elasticity

Resource pooling

Measured service

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16
Q

What is the name of the program that acts as the translator between the host
machine and its virtual machines?

Virtual machine server

Virtualization machine manager

Virtual host manager

Virtualized guest server

A

Virtualization machine manager

17
Q

Which of the following best describes sandboxing as it relates to a virtual
machine?

It is a type of hybrid cloud computing.

It is a type of firewall between the host server and the outside world.

It is a backup for virtual machines.

It is the isolation of VMs within the host system for better security.

A

It is the isolation of VMs within the host system for better security.

18
Q

A VMM that runs directly on the hardware rather than inside the operating
system is known as which of the following?

Hypervisor

Thin-client virtualization

Client-side host/guest virtualization

DEP (Data Execution Prevention)

A

Hypervisor

CompTIA A+_ (28 decks)

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