4.0 Virtualization + Cloud Computing

Question 1

4.1 IaaS(Infrastructure as a service)/HaaS( hardware as a service )

Answer 1

cloud model that provides you with all of the hardware that you might need to run your applications.

Question 2

4. 1 web hosting provider
   - What aas is it part of?

Answer 2

-IaaS

Question 3

4. 1 SaaS(Software as a Service)( on-demand software.)
   - How can it be accessed
   - Who is the provider?
   - Example?

Answer 3

• Happens when log into a website
• third party
• Google Mail

Question 4

4. 1 PaaS( platform as a service)
   - What is it?
   - Example of it?

Answer 4

• You build your applications, but a third party hosts the data, servers and software
• Salesforce

Question 5

4. 1 public cloud deployment model
   - Availability?
   - Examples?

Answer 5

• Everyone on the itnernet
• Amaazon Web Services and Microsoft Azure

Question 6

4. 1 hybrid cloud
   - What does it combine?

Answer 6

-some part of your cloud-based services running in a private data center and other aspects of your cloud-based service running in a public provider’s cloud.

Question 7

4.1 community deployment model

Answer 7

• many organizations can create a much larger cloud and then share those resources between the members of the community.

Question 8

4. 1 internal cloud vs external cloud
   - What costs do you pay for in the internal cloud?
   - In the external cloud?

Answer 8

• you own the hardware and software, and networking infrastrucutre
• cost to us the cloud(metered or upfront)

Question 9

4. 1 metered vs unmetered cloud services
   - What are actions that have a cost for metered sertvices?
   - What is the cost for unmetered services?

Answer 9

• uploading/downloading a file, and storing a file
• flat cost over a time period

Question 10

4. 1 rapid elasticity(cloud)
   - What is it?

Answer 10

-Adjusting applicaiton resource allocation based on usage per month

Question 11

4. 1 on-demand self-service
   - What is this?
   - What does a virtual system alllow for?

Answer 11

• Ability to add new server, a new network, or a new application by clicking a few buttons.
• instant resource provisioning

Question 12

4.1 resource pooling(cloud-based)

Answer 12

• virtualize multiple servers inside of hardware

Question 13

4. 1 cloud-based services measure
   - What metrics

Answer 13

-bandwidth, storage, how many people using the application

Question 14

4. 1 cloud-based email hosting
   - What are it’s advantages
   - Common email services?

Answer 14

• don’t have to purchase any of your own servers or maintain your own software.
• flat cost
• Microsoft Office 365 and Google Mail.

Question 15

4. 1 cloud based file storage
   - advantages

Answer 15

-able to share and collaborate everywhere

Question 16

4. 1 cloud based drive
   - What is it part of and what is it’s relation with the cloud?
   - Programs that are examples of cloud based storage?

Answer 16

• part of a hard drive , which allows file syncing to the cloud
• Dropbox, Google Drive, Box and Microsoft OneDrive.

Question 17

4. 1 cloud based application streaming
   - What
   - What parts of the app are downloaded when you’re using it?

Answer 17

• on demand applications from cloud
• Only the ones in current use

Question 18

4. 1 updating apps in cloud-based streaming
   - What advantages does this have?

Answer 18

-admins can update apps at any time

Question 19

4. 1 virtual desktop infrastructure (VDI)(cloud)
   - What does it allow?
   - Where is all the network communicaiton happening?

-

Answer 19

• use a virtual desktop
• In the cloud

-

Question 20

4. 1 VDI security
   - Where does all your sensitive information reside?
   - Could someone else see this information?

Answer 20

• local to your desktop
• No

Question 21

4. 2 host-based virtualization
   - How are you running this?
   - How about in an enterrpise evironment?

Answer 21

• OS on your desktop, that on top of more OS is built
• 1 large computer runs multiple virtual machines

Question 22

4. 2 hypervisor/Virtual Machine Manager
   - What is it?
   - What is it in charge of?

Answer 22

• software that manages all of these virtual systems that are running and keeps all of these resources separate is the hypervisor.
• everything associated with the virtual machine

Question 23

4. 2 virtualization desktop CPU
   - What kind?
   - What hardware and network requirements for virtualization?

Answer 23

• VT CPUS and AMD-V
• storage, network connection

Question 24

4. 2 hypervisor vulnerability
   - What happens if someone siezes control of it?

Answer 24

-They control the virutal machine(s)

Question 25

4. 2 virtual machine escaping
   - What is this?
   - What situations is this epscially bad in?

Answer 25

• Malware takes advantage of a hypervisor vulnerability and use it to hop to other virtual machines
• Shared hypervisor for multiple people

Question 26

4. 2 virtual machine security attacks
   - What can we install to prevent these attacks
   - What are common methods used to attack your virtual machine?

Answer 26

• anti-malware or host-based firewall.
• Downloading their virtual machine from internet

Question 27

4. 2 configure the networking settings for the virtual machines
   - type of network configuration is a shared network address
   - How does it do this?
   - virtual machine to have its own IP address that is on your local network, bridged network addressing.
   - VM using private addressing

Answer 27

• means that the virtual machine that is talking out to the network is using the same IP address as your physical host.
• . It uses network address translation to be able to translate between an internal address and the external address that is shared by your physical computer.
• means that every virtual machine can use DHCP to be able to obtain an IP address from your local DHCP server, or you can configure manual IP addressing on each individual virtual machine.
• it will only be able to communicate to other virtual machines that are on that private network.