Virtualization

Question 1

is a cloud model in which the virtualization resources purchased by the user are dedicated solely to the use of the user. This ensures the greatest level of security for the user but comes at an increased price as well as less flexibility for the resources.

Answer 1

Private cloud

Question 2

is a virtualization resource in which the resource is shared across the open internet. This means that the same cloud server that contains a user’s data also contains the data of anyone else who uses that service.

Answer 2

Public cloud

Question 3

With a public cloud, you are able to store your data in a separate file within the file cabinet, but the files of thousands of other people are also stored in the same file cabinet. For this reason, a public cloud is not as secure as a private cloud. An example of a public cloud would be Dropbox or iCloud.

Answer 3

True

Question 4

is a mixture of the public cloud and the private cloud. A portion of the data is stored in a public cloud while other more sensitive data can be stored in a private cloud.

Answer 4

Hybrid cloud

Question 5

offers the security of a private cloud for more sensitive data as well as the flexibility and scalability of a public cloud.

Answer 5

Hybrid cloud

Question 6

is a cloud that is shared between a specific set of users. Imagine the file cabinet again. The file cabinet is shared between users, but only a specific set of users can store their data in the file cabinet, increasing security over a public cloud, which allows for anyone to store data in the file cabinet.

Answer 6

Community cloud

Question 7

can be thought of as a virtual data center. allow clients to build their entire infrastructure in the cloud. Infrastructure includes items such as servers, firewalls, routers, and switches.

Answer 7

Infrastructure as a service (IaaS)

Question 8

In an IaaS environment, clients are entirely responsible for managing, maintaining, and patching operating systems and applications.

Answer 8

True

Question 9

has become a popular choice for organizations because it allows them to access their programs anywhere an internet connection is available. can be described as any program that is accessed via the web and not locally installed.

Answer 9

Software as a Service (SaaS)

Question 10

provides a platform for developers to build their own applications. providers will handle everything on the back end, including servers, operating systems, and development tools. This allows developers to focus on creating, building, and managing their applications.

Answer 10

Platform as a Service (PaaS)

Question 11

Cloud characteristics are

Answer 11

Features available on the cloud

Question 12

also known as resource pooling, is the division of the resources of the provider among the clients of that provider. One physical host machine with a lot of resources (memory, storage capacity) can have its resources shared among multiple virtual machines. This resource sharing can occur both internally and externally.

Answer 12

Shared resources

Question 13

refers to the concept of tracking a cloud user’s usage and charging only for the number of services used.

Answer 13

Metered utilization

Question 14

measured service as when “cloud systems automatically control and optimize resource use by leveraging a metering capability at some level of abstraction appropriate to the type of service (e.g., storage, processing, bandwidth, and active user accounts). Resource usage can be monitored, controlled, and reported, providing transparency for both the provider and consumer of the utilized service.”

Answer 14

True

Question 15

It’s entirely possible (and quite common) for your resource needs to grow as the organization grows. An organization that started with five servers might triple its server needs in several years. Virtualization makes it possible to quickly add new servers as you need them without the hassle of purchasing new hardware each time. This is known as

Answer 15

Rapid Elasticity

Question 16

is the concept of a cloud service being uninterrupted and responsive the majority of the time. Service-level availability or uptime is measured in nines. For example, a provider with three nines of availability has 99.9% uptime while a provider with five nines of availability guarantees 99.999% uptime.

Answer 16

High availability

Question 17

is the ability to provide the most recent copy of data on both the cloud and local devices through the synchronization process.

Answer 17

File synchronization

Question 18

is a means by which to manage virtual desktops. With a ___ on premises, the virtual machine running the virtual desktops is located on the physical premises of the entity using it. removes the physical hardware of a network, such as switches, cables, and NICs, and replaces them with virtual hardware contained on a single machine located at the site.

Answer 18

virtual desktop infrastructure (VDI)

Question 19

removes the virtual machine from the physical premises and places it in the cloud environment run through cloud providers. This eliminates the responsibility of the user for the physical hardware running the VDI.

Answer 19

VDI in the cloud

Question 20

is the process of running the virtual environment on a device physically located on the premises. The virtualization software is run on the client machine rather than through the cloud. The client device hosts the hypervisor and is responsible for accommodating the necessary requirements to run the virtual machine.

Answer 20

Client-side virtualization

Question 21

Considerations for client-side virtualization include CPU, RAM, hard drive space, and network capabilities.

Answer 21

True

Question 22

is designed to remove the one-to-one hardware and software barrier and maximize available resources. can be used to run multiple OSs on a single device or can pool resources from multiple servers into a single powerful system. can also be used to protect the host system by separating the virtual machines from one another.

Answer 22

A Virtual machine

Question 23

is a temporary, isolated virtual environment that can be used for testing or quarantining.

Answer 23

A sandbox

Question 24

A sandbox creates a safe environment separated virtually from the host machine to eliminate the potential contamination of the host machine. Data in the sandbox is only in the sandbox and does not save to the host. When the sandbox is terminated, all data associated with the sandbox is also removed.

Answer 24

True

Question 25

Virtual machines can be used for test development by creating virtual environments and OSs that can be used for application testing or development.

Answer 25

True

Question 26

is the virtualization of applications. is often used with legacy software or legacy OS to offer the functionality of the legacy application. is also used for cross-platform functionality. For example, an application designed for a macOS can be used on a Windows machine by creating a virtual macOS on the Windows machine.

Answer 26

Application virtualization

Question 27

Not all virtual machines are created equal. The individual that is building the virtual machine determines what resources to provide to the virtual machine. This means determining the amount of hard drive space and the amount of memory that your local machine can afford to give the virtual machine. If your physical machine doesn’t have a lot of RAM, then you will not be able to provide enough RAM for your virtual machine to run smoothly.

Answer 27

True

Question 28

Just as security is vital in physical computing, it’s also important to consider security when working with virtual machines. This means implementing the same types of security controls on your virtual desktops as you would on your physical ones, such as strong passwords, account lockout policies, and even multi-factor authentication.

Answer 28

True