Virtualization and Cloud computing

Question 1

Upgrading which component of a host machine would most likely enable you to run more virtual machines simultaneously?

CPU

Hard drive

RAM

Answer 1

RAM

Adding more RAM will enable you to run more simultaneous VMs. Upgrading a hard drive could help, but it’s not the best answer here

Question 2

What enables two VMs hosted on the same physical machine to communicate without leaving the machine itself?

Virtual firewall

Virtual LAN

Virtual switch

Answer 2

Virtual switch

Hypervisors come with virtual switching capability to enable the VMs to communicate

Question 3

What feature lets you save a VM’s state so you can quickly restore to that point?

Replacement

Save

Snapshot

Answer 3

Snapshot

The saved state of a VM is called a snapshot. Not to be confused with a true backup

Question 4

What do you need to install a legal copy of Windows 10 into a virtual machine using VMware Workstation?

A valid VM key

Valid Windows 10 installation media

A valid ESXi key

Answer 4

Valid Windows 10 installation media

You need a copy of the Windows installation media to install Windows

Question 5

Which of the following is an advantage of a virtual machine over a physical machine?

Increased performance

Hardware consolidation

No backups needed

Answer 5

Hardware consolidation

A big benefit of virtualization is hardware consolidation

Question 6

Janelle wants to start a new photo-sharing service for real pictures of Bigfoot, but doesn’t own any servers. How can she quickly create a new server to run her service?

Public cloud

Private cloud

Community cloud

Answer 6

Public cloud

Using the public cloud will enable Janelle to quickly create the servers she needs

Question 7

After the unforeseen failure of her Bigfoot-picture-sharing service, bgFootr—which got hacked when she failed to stay on top of her security updates—Janelle has a great new idea for a new service to report Loch Ness Monster sightings. What service would help keep her from having to play system administrator?

Software as a Service

Infrastructure as a Service

Platform as a Service

Answer 7

Platform as a Service

By switching to a PaaS, Janelle can concentrate on creating her service and leave the lower-level administration up to the PaaS provider

Question 8

John has two groups of virtual machines that each need to be on their own subnet. Which of the following should he use to subnet each group of virtual machines without moving or re-cabling hardware?

Virtual NIC

Virtual switch

Virtual router

Answer 8

Virtual router

A virtual router performs all the same Layer 3 tasks that its physical cousins do

Question 9

Which of the following would enable you to use iSCSI to read and write data over the network?

Serial-attached SCSI

Storage area network

Network attached storage

Answer 9

Storage area network

A storage area network uses the lower-level iSCSI protocol to present virtual disks to client machines

Question 10

BigTracks is a successful Bigfoot-tracking company using an internal service to manage all of its automated Bigfoot monitoring stations. A Bigfoot migration has caused a massive increase in the amount of audio and video sent back from their stations. In order to add short-term capacity, they can create new servers in the public cloud. What model of cloud computing does this describe?

Public cloud

Community cloud

Hybrid cloud

Answer 10

Hybrid cloud

BigTracks is creating a hybrid cloud by connecting its internal private cloud to a public cloud to expand capacity quickly