Question 1

Why is the term "pooled" used to describe the cloud?

Accepted Answer

Cloud resources are pooled because many different organisations use the same physical hardware,which they share through virtualisation.Cloud vendors dynamically allocate virtual machines to physical hardware as customer needs increase or decrease.

Question 2

Which of the following statements is true about cloud services?

Accepted Answer

Financial institutions often hire cloud services for scalability, cost-effectiveness, and enhanced security, despite concerns about data control.

Question 3

organisations that are required by law to have physical control over their data can also benefit from cloud computing.

Accepted Answer

While organisations that must follow strict data compliance regulations may be hesitant to adopt cloud computing, many cloud providers offer solutions that meet these standards. Additionally, using cloud services can improve data security and reduce the risk of physical data breaches.

Question 4

As standard practice,customers are regularly updated by cloud vendors about the location and number of copies made of their data.

Accepted Answer

Cloud vendors typically do not disclose specific details such as the exact location or the number of copies made of a customer's data as part of their standard operations. This information is managed internally for redundancy and resilience purposes.

Question 5

Which of the following is a reason for the term elastic being used to define the cloud?

Accepted Answer

The term "elastic" refers to the ability of the cloud to dynamically increase or decrease computing resources based on the demand. This is in contrast to traditional hosting methods where operations staff manually allot resources. Therefore, option C is the best answer. Options A, B, and D do not accurately describe the reason for the term "elastic" being used to define the cloud.

Question 6

What is the cloud?

Accepted Answer

The answer of What is the cloud?...

Question 7

Cloud vendors do not benefit from economies of scale.

Accepted Answer

Cloud vendors do benefit from economies of scale as they can spread the cost of their infrastructure and services across a large number of customers, resulting in lower costs per customer, which can be passed on as savings or lower prices to customers.

Question 8

Which of the following is true of Web services?

Accepted Answer

Web services are SOA-designed programs that comply with Web service standards, allowing for interoperability between different software applications, platforms, and programming languages. They are not limited to running as an independent program or being used only with other programs from the same vendor. They can also be used for cloud processing. Option A is incorrect as it incorrectly limits the scope of web services. Option C is incorrect as it refers to a different protocol standard. Option D is incorrect as it incorrectly suggests that web services can only be used with other programs from the same vendor.

Question 9

To use cloud-based hosting,an organisation will have to construct its own data centre.

Accepted Answer

Cloud-based hosting allows organizations to use servers and infrastructure provided by cloud service providers, eliminating the need to construct and maintain their own data centers.

Question 10

Why is cloud hosting preferred to in-house hosting?

Accepted Answer

The answer of Why is cloud hosting preferred to in-house...

Question 11

Service oriented architecture (SOA)is a way of designing computer programs so that they can be combined flexibly.

Accepted Answer

SOA is designed to promote flexibility and reusability by breaking down programs into software components that can be combined and reused in different ways.

Question 12

An organisation that hires cloud services ________.

Accepted Answer

By hiring cloud services, an organization can configure and manage its infrastructure to limit the response time of its web pages, which can enhance the user experience. The other options are not necessarily true for all cloud service providers and may depend on the specific contract and arrangements in place.

Question 13

What are the factors that have made cloud-based hosting advantageous?

Accepted Answer

The answer of What are the factors that have made...

Question 14

Cloud resources are pooled because many different organisations use the same physical hardware.

Accepted Answer

Cloud resources are shared among multiple users or organizations, allowing for efficient use of hardware and resources. This pooling of resources is one of the key characteristics of cloud computing.

Question 15

Before the creation of personal computers,time-sharing vendors provided slices of computer time on a use-fee basis.

Accepted Answer

This is true. In the days before personal computers, people would access computer time through time-sharing vendors who would provide slices of computer time on a use-fee basis. This allowed multiple users to access the same computer at different times, increasing efficiency and reducing costs.

Question 16

Cloud-based hosting is preferred by organisations that are required by law to have physical control over their data.

Accepted Answer

Cloud-based hosting does not provide physical control over data, so it is not preferred by organizations that are required by law to have physical control over their data.

Question 17

Which of the following statements is true about cloud computing?

Accepted Answer

Cloud computing refers to the practice of using a network of remote servers (known as the cloud) to access, manage, and process data. This often involves the elastic leasing of pooled computer resources (such as processing power, storage, and memory) over the Internet. Option A is incorrect because a network of servers hosted in-house by an organization is not considered a cloud; it is simply an internal network. Option B is incorrect because cloud-based hosting does operate over the Internet. Option C is incorrect because a cloud is not a peer-to-peer network used to share data between users; it is a network of remote servers used for computing purposes.

Question 18

Which of the following statements is true about the increase in popularity of cloud hosting?

Accepted Answer

One of the main reasons for the increase in popularity of cloud hosting is virtualisation, which allows for the instantaneous creation of new virtual machines.

Option B is incorrect because the technology prevalent in the 1960s was not favorable for constructing large data centers, as computer hardware was bulky and expensive.

Option C is incorrect because internet-based standards have actually led to increased flexibility in processing capabilities.

Option D is incorrect because data communication has become cheaper over time due to advancements in technology.

Question 19

Why is the term "elastic" used to describe the cloud?

Accepted Answer

The answer of Why is the term "elastic" used to...

Question 20

Which of the following statements is true of cloud-based and in-house hosting?

Accepted Answer

Cloud-based hosting can reduce the visibility of security measures because the infrastructure is managed by the cloud provider, not the client.

Quiz 6: The Cloud