220-1101 Virtualization and Cloud Computing

Question 1

Which cloud model is an internal cloud a business owns? Offers the flexibility of the cloud but has complete ownership of its data.

Answer 1

Private cloud

Question 2

Which cloud model is software, platforms, and infrastructure delivered through networks that the general public can use?

Answer 2

Public cloud

Question 3

Which cloud model is a private cloud paid for and used by more than one organization?

Answer 3

Community cloud

Question 4

Which service model uses hardware virtualization?

Answer 4

Infrastructure as a service (IaaS)

Question 5

What are the purposes (3) of IaaS?

Answer 5

1. minimize idle hardware
2. protect against data loss and downtime
3. respond to spikes in demand

Question 6

Which service model provided access to necessary application wherever you have on an internet connection, often without carrying the data?

Answer 6

Software as a service (SaaS)

Question 7

Which service model gives programmers all the tools they need to deploy, administer and maintain an application?

Answer 7

Platform as a service (PaaS)

Question 8

Which cloud characteristic is when cloud providers aggregate physical units into a pool of shared resources that is available on demand?

Answer 8

Shared resources

Question 9

Which cloud characteristic is when cloud providers rate customers based on factors such as the traffic that goes in and out of the application or how much data is stored?

Answer 9

Metered utilization

Question 10

Which cloud characteristic is when cloud customers can easily expand the number of servers and spread them out geographically?

Answer 10

Rapid elasticity

Question 11

Which cloud characteristic is when cloud providers propagates file changes to a storage provider on to any other connected devices?

Answer 11

File synchronization

Question 12

File synchronization is often built into what?

Answer 12

productivity suites

Question 13

What are the two different forms of desktop virtualization?

Answer 13

1. Virtual desktop infrastructure (VDI) on premises
2. VDI in the cloud

Question 14

How does desktop virtualization work?

Answer 14

uses a client program on the device to connect to a virtual desktop in a server

Question 15

What are the three benefits to desktop virtualization?

Answer 15

control, security and management

Question 16

What are the three primary purposes of virtual machines?

Answer 16

1. Sandbox
2. Test development
3. Application virtualization

Question 17

What is the purpose of virtual machine sandboxing?

Answer 17

Sandbox testing: where you can experiment and check out new/updated application without messing up the primary system

Question 18

T/F: if you need to run software you don’t trust, the safest way is to run it in a virtual machine.

Answer 18

False. You can use a virtual machine, but is not a true sandbox

Question 19

What is the purpose of virtual machine test developments?

Answer 19

you can control the development environment and testing environment a lot easier on a virtual machine

Question 20

What is the purpose of virtual machine application virtualization?

Answer 20

virtualizing the OS capability that an application would normally use to install and do its work

Question 21

What are the two use cases for application virtualization?

Answer 21

1. Legacy software/OS: running the application on a different OS version
2. Cross platform virtualization: running applications written for another OS

Question 22

What is the purpose of enabling hardware virtualization support?

Answer 22

VMs will run better with it enabled

Question 23

Where can you enable and disable hardware virtualization support?

Answer 23

inside the system setup utility

Question 24

How much RAM does a VM require?

Answer 24

the same amount of RAM as a real machine

Question 25

How much storage does a VM require

Answer 25

a lot. Can range to hundreds of Gigabytes

Question 26

What are the 4 types of virtual networks?

Answer 26

1. internal network: networked VMs with each other 2. place a VM on a virtual network that only enables it to communicate with the host 3. bridge the VM's nic to the host's NIC, enabling the VM to join the same network as the host 4. no network

Question 27

What are the security considerations for virtual machines?

Answer 27

1. Infected machines can be restored by loading from a good VM file 2. Any other VMs are generally unaffected and uninfected 3. most virtual machines allow snapshot or checkpoints

Question 28

Between Google Sync and Google Cloud, which provides storage?

Answer 28

Google Cloud

Question 29

What is a virtualization enhancement developed by AMD for its CPU?

Answer 29

AMD-V or Hyper-V

Question 30

What refers to a billing model where a cloud provider charges customers based on the resources they consume or the services they use?

Answer 30

Metered Usage

Question 31

What are the 5 methods for preventing VM sprawl?

Answer 31

1. Maintain an inventory 2. Categorize VMs based on groups or departments 3. Identify idle VMs 4. Identify VMs with under- or over-allocated resources 5. Audit VMs periodically

Question 32

What are the 2 methods for preventing VM escape?

Answer 32

1. Sandboxing 2. Patch Management

Question 33

What is Intel's Virtualization Technology?

Answer 33

Vt-x