2B

Question 1

What are the benefits of virtualization?

Answer 1

1. Infrastructure Simplification
2. Total Cost of Ownership (TCO)
3. Environmental Issues
4. Improved Responsiveness

Question 2

The following describes which benefits of virtualization?

This benefit of virtualization uses “Server Consolidation” - The consolidation of servers using VMs reduces the number of physical servers required to meet operational needs. This allows one server to host many once-dedicated servers that may have been underutilized in their stand-alone state.

Answer 2

Infrastructure Simplification

Question 3

The following describes which benefit of virtualization?

The use of fewer servers to deliver and meet business needs reduces the overall ___. This produces an increase in the return on investment (ROI) when using virtualization.

Answer 3

Total Cost of Ownership (TCO)

Question 4

TCO is achieved through what three things?

Answer 4

Increased server utilization
Decreased management infrastructure costs
Lowered costs to deploy new environments

Question 5

The following describes which TCO method?

One physical host server can run multiple virtual servers, rather than having multiple physical servers with single functions. Example: The host server can be the home to a virtual Domain Controller, DHCP server, DNS server, etc. All virtual servers still have a single function but utilize the shared resources of a single physical host server.

Answer 5

Increased server utilization

Question 6

The following describes which TCO method?

Since virtual environments pool resources, it is no longer required to purchase additional hardware for a server that is running low. If a certain virtual server requires more memory, it is possible to reallocate that memory at no additional cost by either adding memory that is not already utilized or by pulling from another virtual server that is not utilizing heavy memory usage.

Answer 6

Decreased management infrastructure costs

Question 7

The following describes which TCO method?

Deploying a new physical server costs money with every new deployment. With virtual environments, you can deploy new virtual servers within minutes without the need to purchase additional hardware

Answer 7

Lowered costs to deploy new environments

Question 8

The following describes which benefit of virtualization?

The current focus on using energy resources more efficiently can be aided by using virtualization. This is primarily achieved by reducing the number of physical servers.

Answer 8

Environmental Issues

Question 9

With fewer servers needed, the following environmental concerns are addressed:

Answer 9

Reduce electrical energy consumption
Decreased cooling requirements
Decreased physical space requirements

Question 10

The following describes which environmental concern addressed by use of virtualization?

More servers mean more systems that need power along with the additional cost of cooling. With only one host system requiring electricity and no increased cooling cost, energy consumption can sometimes be reduced by an average of 80% versus running in an all-physical infrastructure.

Answer 10

Reduce electrical energy consumption

Question 11

The following describes which environmental concern addressed by use of virtualization?

Servers generate massive amounts of heat. To prevent thermal damage to equipment, server rooms are required to have dedicated specialized air-cooling systems. The more physical servers there are, the more cooling systems are needed to fit the cooling requirements. However, if you limit the number of physical systems by having a virtual environment, then the cooling requirements
will not be as aggressive. Example: If a server room has 80 physical servers it would require two industrial sized air conditioners running at 80% load capacity 24/7 to keep the room cool. Now the same number of servers virtualized only running on 6 physical hosts will only require one air conditioner running at 60% load capacity.

Answer 11

Decreased cooling requirements

Question 12

The following describes which environmental concern addressed by use of virtualization?

Each individual physical server will require either its own space on a server rack, or an entire rack to itself depending on its requirements. This can lead to servers taking up a lot of needed space, and if physical space is a limited resource, virtualizing servers would be the best option. Having only one physical host server will free up the limited space in a server room.

Answer 12

Decreased physical space requirements

Question 13

The following describes which benefit of virtualization?

The use of virtualization allows resources to be shared among the virtual servers. Shared resources can be re-allocated as needed to maintain capacity needs for expected and unexpected
workloads.

Answer 13

IMPROVED RESPONSIVENESS

Question 14

Using shared resources can effectively:

Answer 14

Dynamically respond to application workloads

Question 15

Virtualization can improve responsiveness by dynamically responding to application workloads. This is accomplished by what?

Answer 15

Automatic load balancing.

Question 16

The following describes what?

Instead of having statically set resources across all virtual servers, resources can be automatically allocated as they are needed and removed when not. This aides in quicker reaction times to system needs rather than having to manually increase or decrease system resources every time a system needs to make a change or falls
under heavy load. This will also improve the efficiency of resource manageability by having resource management completely autonomous.

Answer 16

Automatic Load Balancing