Cloud

Question 1

A type of cloud infrastructure available solely for a single organization is known as :

Answer 1

Private cloud

Question 2

Refers to a cloud computing delivery model in which cloud infrastructure is provisioned for open use by the general public ?

Answer 2

Public cloud

Question 3

A cloud delivery model consisting of two or more interlinked cloud infrastructures (private,community, or public) is referred to as a hybrid cloud.

Answer 3

True

Question 4

Which cloud infrastructure type would be the most suitable for a group of organizations sharing common interests?

Answer 4

Community cloud

Question 5

Refers to a cloud computing service model in which clients,instead of buying all the hardware and software, purchase computing resources as an outsourced service from suppliers who own and maintain all the necessary equipment and software?

Answer 5

IaaS (infrastructure as a service)

Question 6

Cloud computing service model offering remote access to applications based on monthly or annual subscription fee is called :

Answer 6

SaaS (software as a service)

Question 7

Which cloud service model would provide the best solution for a web developer intending to creat a web app?

Answer 7

Paas (platform as a service)

Question 8

A certain term that refers to a cloud computing feature that allows for automatic allocation of computing resources in proportion with the demand?

Answer 8

Rapid elasticity

Question 9

Refers to the cloud providers ability to track the computing resources consumers are accessing as well as the amount of resources they are consuming. It provides transparency for both the provider and consumer and is used, among other applications, for the purpose of billing.

Answer 9

Measured service

Question 10

Refers to a situation in which gaining access to resources does not require a flat fee. This type of billing model allows consumers to be charged variable rates depending on the exact amount of utilized resources.

Answer 10

Metered service

Question 11

A network engineer is looking for a provider that will allow her to move her organization’s servers, routers, firewalls, and switches to the cloud. This provider would essentially act as her organization’s virtual data center. What type of cloud provider does this network engineer need to find?

Answer 11

IaaS (infrastructure-as-a-service) is a cloud model that allows organizations to move their entire infrastructure to the cloud. Infrastructure includes items such as routers, switches, firewalls, and servers.

Question 12

A CEO has requested that his IT department find a new accounting software. He would prefer that the accounting software doesn’t need to be installed locally on his machine, since he often switches between multiple devices. He would like the program to simply be accessible via a Web browser on any device while he has an Internet connection. What type of software should this IT department be looking at?

Answer 12

SaaS (Software-as-a -Service) describes any software that doesn’t need to be installed locally on a device and can be accessed anywhere there is an Internet connection.

Question 13

Jamie is a software developer. She is great at writing code, but she doesn’t know much about setting up or managing networks and servers. Jamie just wants to be able to write her code and manage her application while someone else owns and maintains the servers and networking equipment. What type of cloud provider would work best for Jamie?

Answer 13

PaaS (Platform-as-a-Service) companies provide platforms for software developers to build, create, and maintain their applications. The PaaS provider handles everything on the back-end, including setup and maintenance of servers and networking equipment.

Question 14

The program Dropbox® is an application that is accessible to anyone over the open Internet. This means that Dropbox® is an example of which of these cloud types?

Answer 14

Public cloud refers to anything that is delivered across the open Internet. When someone uses the term the cloud, they are often referring to the public cloud.

Question 15

A very large enterprise has decided that they would like to make the move to cloud computing. However, they need to ensure that there is no risk of their data being accessed by others. The company is willing to spend as much money as it takes to ensure their data is secure and entirely owned by themselves. Which of the following cloud implementations would be the best choice for this organization?

Answer 15

While private clouds are the most expensive of the cloud implementation options, they are also the most secure. If an organization has high security concerns, and can afford a private cloud, it is the best option.

Question 16

An organization would like to move to the cloud. They have some data that is extremely sensitive, but they also have a lot of data that isn’t private at all. They know that they would not be able to afford to move all of their data to a private cloud, but they would like a way to keep their sensitive data secure. What is the best option for this organization?

Answer 16

Due to the high price of creating and maintaining a private cloud, many organizations use a hybrid cloud. A hybrid cloud combines public, community, and private clouds to meet unique requirements.

Question 17

One perk of virtualization is the ability to quickly add and remove resources to servers depending on your needs at the time. What is the term used to describe this?

Answer 17

Rapid elasticity is the term used to describe the flexibility of virtualization, which includes allowing users to add and remove resources to servers as they need them. On-demand self-service, on the other hand, deals with the ability for a user to set up any cloud resource in general without needing any human interaction (e.g. having to ask someone on the IT team to set up a server for you).

Question 18

The concept of combining resources from multiple physical servers into one bucket, which can then be used as needed for virtual servers, is known as which of the following?

Answer 18

Resource pooling is the concept of combining multiple physical server resources into one bucket or pool, which can then be used as needed for virtual servers.

Question 19

Jordan runs a cooking website. His hosting provider bills him based on the amount of traffic his web servers experience each day, which is a ____ service, while also providing the ability for the website to expand and shrink resources as traffic increases and decreases, which is an example of ____.

Answer 19

Cloud providers who offer metered service will bill their clients based on specific measurements. These measurements could be based on a number of different factors, including web traffic (bandwidth), CPU usage, or database usage. The expansion and shrinking of resources based on demand is an example of rapid elasticity.

Question 20

When creating a virtual machine, which of the following resources should be considered?

Answer 20

A virtual machine will be limited to the hardware capabilities of the computer it is hosted on. The CPU and RAM capacities of the host machine will directly affect the capabilities of the virtual machines it hosts.

Question 21

A user stores all of their work documents in a cloud file storage service. This cloud company also has an app that can be downloaded to multiple devices to manage the files. What helps ensure the documents stay updated no matter what device is accessing the files?

Answer 21

Synchronization - Nearly all cloud file storage services utilize synchronization behind the scenes. This means anytime you make a change in one place, the document is automatically updated to the newest version in all places.

Question 22

What term is used to describe the process of configuring a virtual machine on a local desktop?

Answer 22

Client-side virtualization refers to the process of using a client desktop or endpoint to host multiple other virtual machines. These other virtual machines commonly have different operating systems along with their own set of specific applications. Desktop virtualization would refer to delivering a desktop experience in real-time over the network to an end-user. Server virtualization would refer to using a virtualized server to service many client endpoints or requests. Network function virtualization refers to separating a network role or service from the hardware it would typically run on.

Question 23

Marcus wants to be able to play Super Nintendo® games, but he doesn’t have the Super Nintendo® hardware. His friend told him that it’s possible to configure his computer to replicate the Super Nintendo® hardware, allowing him to play the games on the computer. What does Marcus need to do this?

Answer 23

An emulator is used to replicate or mimic the behavior of another device (such as a computer mimicking a Super Nintendo® device).

Question 24

Jane is in the process of learning how to use Linux®, but she only has a desktop running Windows 10®. She would like to be able to practice using Linux® commands. What should Jane use so that she can practice using Linux® on her Windows 10® desktop?

Answer 24

To practice Linux®, Jane can configure a Linux® virtual machine on her computer. She can use the Linux® virtual machine for practice and still use Windows 10® the rest of the time.

Question 25

To accomplish full virtualization, which of these is required?

Answer 25

Hypervisors handle all interactions during virtualization and make it possible to run multiple guest operating systems at one time. Hypervisors are needed for full virtualization.

Question 26

An engineer is creating a virtual machine to use as a lab computer. He wants to ensure that the virtual machine only has access to other virtual machine lab computers that he specifies and not to the production network or the Internet. What type of networking should he use for this virtual machine?

Answer 26

The internal networking function allows a VM to communicate with other VMs that you specify, but not access the Internet or any other computers on your network.

Question 27

An engineer would like to configure his virtual machine to make outbound connections only. Which networking mode should this engineer use for the virtual machine?

Answer 27

The NAT mode option in a virtual machine allows the virtual machine to make outbound connections only.

Question 28

To get a virtual machine to communicate directly through the network to which the physical machine is connected, which networking mode would you use?

Answer 28

In bridge mode, the VM is able to communicate directly through the network to which the physical machine is connected.

Question 29

Rather than using a private or public cloud, several organizations have decided to use a third party that allows them to share a cloud. What term describes this type of cloud?

Answer 29

A cloud that is used and shared by multiple organizations is called a community cloud.

Question 30

VMware ESXi® and Microsoft Hyper-V® are examples of which of these?

Answer 30

VMware ESXi® and Microsoft Hyper-V® are examples of hypervisors. Hypervisors handle all interactions during virtualization and make it possible to run multiple guest operating systems at one time.

Question 31

An organization wants their employees to be able to access their productivity apps from anywhere they have an Internet connection. They have decided to implement Google Apps®. What type of cloud model is this an example of?

Answer 31

SaaS can be described as any program that is accessed via the Web and not locally installed. Examples of SaaS providers include Google Apps® and Dropbox®.

Question 32

Which of the following virtual technologies make it possible to run multiple desktops without requiring the purchase of expensive hardware for each machine?

Answer 32

Virtual machines are useful because they allow for the use of multiple desktops without the need to purchase expensive hardware for every single machine. One use for a virtual desktop is the need for multiple operating systems.

Question 33

Which term refers to being able to quickly add new servers as you need them without the hassle of purchasing new hardware each time through the use of virtualization?

Answer 33

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 rapid elasticity.

Question 34

Resource pooling is the act of taking all of the resources available on a physical machine and making them available in which of the following?

Answer 34

Resource pooling is the concept of combining the resources of physical servers and making them available in a pool. When this is done on a large scale (imagine Amazon®) it allows customers to use and pay for only the resources they need from the pool at a given time.

Question 35

Business software at your company is not installed on your computer, but instead is accessible over the network on-demand for you to access when you need it. Which of the following is this an example of?

Answer 35

virtual application streaming
Explanation:
Having the ability to access your applications from anywhere you login has become a necessity for most enterprise environments. Virtual application streaming allows this to be possible by hosting the applications on a server, and only providing these applications in an on-demand fashion when you need to interact with them. A popular example of this in the real world is using Microsoft’s App-V Server.