Deck 6: The Cloud

Question 1

Which of the following is a disadvantage of a content delivery network?

A) It increases the load time of web pages for users.
B) Its vulnerability to denial-of-service (DOS) attacks is high.
C) Its reliability is decreased as data is stored on many servers.
D) It is better suited to store and deliver content that seldom changes.

Answer 1

D

Question 2

Which of the following statements is true of private clouds?

A) Private clouds are easy to build and operate.
B) Several organizations pool their resources to form a private cloud.
C) Private clouds provide access from outside an organization without connecting to a VPN (virtual private network).
D) Idle servers in a private cloud cannot re-allocated to other organizations.

Answer 2

D

Question 3

The cloud-based service that provides the hardware and allows customers to load an operating system of their choice is known as ________.

A) application virtualization
B) platform as a service (PaaS)
C) infrastructure as a service (IaaS)
D) network functions virtualization (NFV)

Answer 3

C

Question 4

If an organization opts for software as a service (SaaS),it will have to ________.

A) install an operating system on the server
B) purchase licenses for software replication
C) transfer data and develop procedures
D) install a DBMS

Question 5

Sireus Corp: is availing a cloud-based service: It plans to install a software package that will offer cloud services to its users: If it would like to avoid installing an operating system on the server,which of the following services should it choose?

A) network as a service (NaaS)
B) infrastructure as a service (IaaS)
C) platform as a service (PaaS)
D) software as a service (SaaS)

Question 6

An internal information system built using Web services ________.

A) is called a virtual private network
B) is a cloud-based technology if it offers elasticity
C) is a subset of a virtual private cloud
D) is an example of platform as a service (PaaS)

Question 7

Which of the following is a reason why an internal information system (private internet)that uses Web services is not considered a cloud?

A) The number of servers is fixed in a private internet and is not made elastic.
B) Idle servers in a private internet are dynamically re-allocated.
C) It is generally not accessible outside the organization.
D) An organization maintains a private internet using its own resources.

Question 8

A ________ is a system of hardware and software that stores user data in many different geographical locations and makes that data available on demand.

A) virtual private network
B) content delivery network
C) mobile virtual network
D) local area network

Question 9

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

A) Computing resources can be increased or decreased dynamically in cloud-based hosting.
B) Operations staff manually allots fresh resources when the traffic increases.
C) Customers are provided a consistent bandwidth on the cloud.
D) Resources available for cloud-hosting are shared among customers.

Question 10

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

A) Data communication is more expensive now than earlier.
B) Virtualization allows instantaneous creation of new virtual machines.
C) Internet-based standards have led to loss of flexibility in processing capabilities.
D) The technology prevalent in the 1960s was more favorable for the construction of enormous data centers.

Question 11

Which of the following statements is true of content delivery networks (CDNs)?

A) They reduce users' access costs by delivering data faster.
B) They distribute data on different servers without any data replication.
C) Users receive content from the CDN server that is geographically closest.
D) A routing server decides which server should deliver content on an hourly basis.

Question 12

Which of the following is a characteristic of a private cloud?

A) Organizations define their own set of standards for interactions between programs.
B) Idle servers on a private cloud can be allocated to other organizations.
C) A private cloud is most likely to be built by a small organization.
D) Most organizations avoid having multiple database servers in a private cloud.

Question 13

An online service allows users to integrate their phonebook with their social media profiles and stores it on the cloud: The phonebook is updated with pictures of contacts when they are uploaded on social media sites: Which of the following cloud-based offerings is being provided to the users?

A) network as a service (NaaS)
B) platform as a service (PaaS)
C) infrastructure as a service (IaaS)
D) software as a service (SaaS)

Question 14

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

A) In-house hosting makes scaling up to meet the demands of increased traffic easier.
B) Cloud-based hosting involves the risk of investing in technology that may soon become obsolete.
C) In-house hosting leads to loss of physical control of data.
D) Cloud-based hosting reduces the visibility of the security being used to protect data.

Question 15

Which of the following statements is true about cloud computing?

A) The elastic leasing of pooled computer resources over the Internet is called the cloud.
B) A cloud is a peer-to-peer network used to share data between users.
C) Cloud-based hosting does not operate over the Internet.
D) Any network of servers hosted in-house by an organization for its own requirements is regarded as a cloud.

Question 16

Which of the following statements is true about cloud services?

A) Cloud service vendors tend to avoid virtualization.
B) In-house hosting is generally preferable to cloud hosting.
C) Cloud services always allow customers to maintain physical control over its data.
D) Financial institutions are not likely to hire cloud services from a vendor.

Question 17

Which of the following is true of Web services?

A) They are SOA-designed programs that comply with Web service standards.
B) They are programs that comply with IEEE 802.3 protocol standard and cannot be used for cloud processing.
C) They are programs that comply with Web service standards and can only run as an independent program.
D) They can be used only with other programs from the same vendor.

Question 18

Which of the following services provides hardware,an operating system,and a database management system (DBMS)on a cloud-based offering?

A) network as a service (NaaS)
B) infrastructure as a service (IaaS)
C) software as a service (SaaS)
D) platform as a service (PaaS)

Question 19

Phobas Inc: offers an online service which stores notes made by customers on the cloud: When a customer enters notes on one device,it gets updated in all the devices he/she owns: Which of the following cloud-based offerings is being provided to the customers?

A) virtual private cloud
B) platform as a service (PaaS)
C) software as a service (SaaS)
D) infrastructure as a service (IaaS)

Question 20

An organization that hires cloud services ________.

A) can accommodate increase in traffic from only one city
B) is continually provided with the maximum possible bandwidth
C) can limit the response time of its web pages
D) hires a fixed number of servers

Question 21

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

Question 22

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

Question 23

Cloud vendors do not benefit from economies of scale.

Question 24

Which of the following statements is true of a virtual private cloud (VPC)?

A) A VPC does not make use of a VPN (virtual private network).
B) An organization generally stores its most sensitive data on a VPC.
C) A VPC can be accessed only from within an organization.
D) A VPC can be built on public cloud infrastructure.

Question 25

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

Question 26

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

Question 27

Using https instead of http ________.

A) shows the other users on that network who are accessing the same site
B) allows a packet sniffer to see only the site visited and nothing further
C) connects a user to the version of the site hosted on a private cloud
D) detects the presence of packet sniffers in the vicinity

Question 28

Which of the following is an advantage of using a private cloud over a virtual private cloud (VPC)?

A) Unlike a VPC, the infrastructure required for a private cloud can be built and operated easily.
B) A VPC gains significantly by using an elastic load balancer, whereas a private cloud does not use an elastic load balancer.
C) A VPC cannot be accessed from outside the organization, but a private cloud can be accessed from outside the organization.
D) Unlike a VPC, a private cloud does not require permission from regulating bodies to host sensitive data.

Question 29

What is a VPN (virtual private network)?

A) It is a markup language that fixes several HTML deficiencies and is commonly used for program-to-program interaction over the Web.
B) It is an add-on to browsers that was developed by Adobe and is useful for providing animation, movies, and other advanced graphics inside a browser.
C) It is the most common language for defining the structure and layout of web pages.
D) It uses the Internet to create secure point-to-point connections.

Question 30

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

Question 31

Which of the following is likely to be a consequence of cloud computing in the future?

A) Organizations will prefer to setup their own computing infrastructure.
B) The cost of obtaining elastic resources will decrease.
C) Jobs related to server operations at small organizations will increase.
D) The number of technology-based startups will stagnate.

Question 32

Which of the following is a characteristic of a virtual private network (VPN)?

A) It establishes a physical connection between the client and the server, called tunnel.
B) It sends encrypted messages over the public Internet.
C) A VPN can be accessed from only one geographical location.
D) VPNs cannot be accessed over the Internet.

Question 33

A content delivery network (CDN)services a user's request using the geographically closest server.

Question 34

Which of the following is a difference between a virtual private network (VPN)and a virtual private cloud (VPC)?

A) Unlike a VPN, a VPC uses encrypted connections between the users and the server.
B) A VPN can be accessed over the Internet, but a VPC cannot be accessed over the Internet.
C) Unlike a VPC, a VPN connects users to an organization's internal IS.
D) A VPC provides the advantages of cloud storage, but a VPN by itself cannot provide these advantages.

Question 35

To use software as a service (SaaS),the user has to just sign up for the service.

Question 36

A system uses cameras and motion-sensing equipment to issue tickets for traffic violations: This system is an example of ________.

A) videotelephony
B) telesurgery
C) telelaw enforcement
D) GPS augmentation

Question 37

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

Question 38

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

Question 39

Which of the following is true of a VPN (virtual private network)?

A) A VPN communication is secure even though it is transmitted over the public Internet.
B) One disadvantage of a VPN is that it does not encrypt messages.
C) Remote access is difficult in case of a VPN.
D) It is a physical, private pathway over a public or shared network from the client to the server.

Question 40

A content delivery network (CDN)provides a specialized type of PaaS.

Question 41

Content delivery networks (CDNs)are used to store and deliver content that rarely changes.

Question 42

A routing server determines which CDN server should respond to a request in real-time.

Question 43

Telediagnosis uses telecommunications to link surgeons to robotic equipment at distant locations.

Question 44

The connection between a VPN client and a VPN server is called a tunnel.

Question 45

A VPC allows organizations to gain the advantages of cloud storage for the portion of data that need not be physically controlled.

Question 46

An organization's internal IS that does not provide elasticity is still considered a cloud-based technology.

Question 47

An elastic load balancer is a feature available in a private cloud that is not available in a private internet.

Question 48

Cloud computing is likely to lead to an increase in the number of technology-based startups.

Question 49

A user may receive various pieces of a web page from different servers on a content delivery network (CDN).

Question 50

A tunnel is a virtual,private pathway over a public or shared network from the VPN (virtual private network)client to the VPN server.

Question 51

Large Web farms are likely to replace in-house servers used by small companies due to the benefits of cloud computing.

Question 52

Cloud computing is likely to enable organizations to obtain elastic resources at very low costs.

Question 53

A small company is likely to choose IaaS as it does not require much technical expertise to load operating systems on a server.

Question 54

Content delivery networks (CDNs)increase Web sites' load time.

Question 55

Remote action systems increase time and travel expenses.

Question 56

A vendor providing SaaS usually makes the software available as a thin-client.

Question 57

DBMS products are generally included in IaaS services.

Question 58

If software licensed from others is to be installed on the cloud,licenses for replication of software must be purchased.

Question 59

A private internet uses cloud standards.

Question 60

Teleaction increases the value of routine face-to-face services.

Question 61

What is a private cloud? What are its limitations?

Question 62

Explain how software as a service (SaaS)works.

Question 63

Why is an internal information system that is built using Web services not considered as cloud technology?

Question 64

What is a virtual private cloud? How does it differ from a private cloud?

Question 65

What is a VPN and how does it work?

Question 66

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

Question 67

Why is cloud hosting preferred to in-house hosting?

Question 68

What is the cloud?

Question 69

Cloud-based hosting does not make sense for some organizations: Explain.

Question 70

What is infrastructure as a service (IaaS)?

Question 71

Explain how platform as a service (PaaS)works.

Question 72

What is a content delivery network? What are its advantages?

Question 73

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

Question 74

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