Chapter 9 Review

Which two business and technical challenges does implementing virtualization within a data center help businesses to overcome? (Choose two.)

• • server hardware needs

• • physical footprint

• • power and air conditioning

• • operating system license requirements

• virus and spyware attacks

What are two advantages of using PC virtualization? (Choose two.)

• 
  

• • It prevents viruses and worms from functioning in a virtualized environment.

• • It allows multiple operating systems to run on a single PC simultaneously.

• • It boosts the performance of the host machine through virtualization.
    

• • It can provide cost savings.

• It allows network threat identification.

A small company is considering moving many of its data center functions to the cloud. What are three advantages of this plan? (Choose three.)

• • The company only needs to pay for the amount of processing and storage capacity that it uses.

• • Cloud services are billed at a fixed fee no matter how much processing and storage are used by the company.

• • Cloud services enable the company to own and administer its own servers and storage devices.

• • The company can increase processing and storage capacity as needed and then decrease capacity when it is no longer needed.
    

• The company does not need to be concerned about how to handle increasing data storage and processing demands with in-house data center equipment.

A college uses virtualization technology to deploy information security courses. Some of the lab exercises involve studying the characteristics of computer viruses and worms. What is the advantage of conducting the lab exercises inside the virtualized environment as opposed to using actual PCs?

• • The lab exercises are performed faster inside of the virtualized environment.

• • The virtualization environment has better tools to develop mitigation solutions.

• • Virus and worm attacks are more easily controlled in a virtualized environment, thus helping to protect the college network and its devices from attack.​

• The viruses and worms will have limited functionality inside the virtualized environment.

What technology allows users to access data anywhere and at any time?

• • data analytics

• • Cloud computing

• • virtualization

• micromarketing

True or False.

Cloud computing and virtualization are different terms that refer to the same thing.

• • true

• false

How does virtualization help with disaster recovery within a data center?

• 
  

• • guarantee of power

• • support of live migration

• • supply of consistent air flow
    

• improvement of business practices

Which type of hypervisor would most likely be used in a data center?

• • Type 1

• • Type 2

• Nexus

• Hadoop

What is the main function of a hypervisor?

• • It is a device that filters and checks security credentials.

• • It is used to create and manage multiple VM instances on a host machine.

• • It is used by ISPs to monitor cloud computing resources.

• • It is software used to coordinate and prepare data for analysis.

• It is a device that synchronizes a group of sensors.

Which statement describes a characteristic of cloud computing?

• • A business can connect directly to the Internet without the use of an ISP.

• • Applications can be accessed over the Internet by individual users or businesses using any device, anywhere in the world.

• • Devices can connect to the Internet through existing electrical wiring.

• Investment in new infrastructure is required in order to access the cloud.