ITM ch6 & ch ext. 8

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

A VPC can be built on a public cloud infrastructure.

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

A VPC provides the advantages of cloud storage, but a VPN by itself cannot provide these advantages.

Which of the following wireless protocols is designed for transmitting data over short distances?

Bluetooth.

An organization that hires cloud services ________.

Can limit the response time of its Web pages.

The distinguishing characteristic of a local area network (LAN) is that it ________.

Connects computers at a single location.

A ________ is an information system that stores user data in many different geographical locations and makes that data available on demand.

Content delivery network

Organizations can dynamically reuse servers that use Web services internally by ________.

Creating a private cloud

Which of the following factors has contributed to an increase in the popularity of cloud hosting?

Development of virtualization technology that allows near instantaneous creation of new virtual machines.

A ________ is a worldwide-unique identity that is affiliated with a public IP address.

Domain name.

Which of the following purposes does a Hypertext Transport Protocol (http) serve?

Enabling communication between a browser and server.

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

False

A local area network (LAN) can be used to connect computers located in Seattle and Philadelphia.

False

An organization's internal information system that does not provide elasticity is still considered a cloud.

False

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

False

Bluetooth is a protocol that can transmit data over long distances.

False

Cloud vendors do not benefit from economies of scale.

False

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

False

Content delivery networks (CDNs) increase a Web page's load time.

False

Remote action systems increase time and travel expenses.

False

Teleaction increases the value of local mediocrity.

False

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

False

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

False

A small office or a home office local area network (SOHO LAN) requires more than a dozen computers and printers.

False.

Cable lines provide high-speed data transmission using phone lines.

False.

The File Transfer Protocol (ftp) is generally used for email transmissions.

False.

With a wide area network (WAN), an organization can place communications lines wherever it wants because all lines reside on its premises.

False.

Which of the following statements is true of private clouds?

Idle servers in a private cloud cannot be repurposed for use by other organizations.

Which of the following is an advantage of a private cloud in an organization?

It allows the organization to manage its servers with elastic load balancing.

Which of the following is an advantage of in-house hosting?

It gives greater control over the location of data

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

It helps to securely access information over the public internet.

What is a virtual private network?

It is a connection that uses the internet to create secure point to point connections.

Which of the following statements defines an IP address?

It is a number that identifies a particular device.

What does the term elastic in the definition of the cloud mean?

It means that the computer resources leased can be increased or decreased dynamically in cloud based hosting

Which of the following statements is true of an Internet service provider (ISP)?

It provides a legitimate internet address and serves as a user's gateway to the internet.

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

It provides a secure connection for information transmitted over the public internet.

Which of the following is an advantage of a content delivery network?

It provides protection from denial of service (DOS) attacks.

Which of the following statements is true of service-oriented architecture (SOA)?

JavaScript is written to invoke services defined by a server application.

A ________ is used to provide a seamless flow of data across networks.

Layered protocol.

A common use of the File Transfer Protocol (FTP) is to ________.

Move files over the internet

An internal information system built using Web services is said to be using the cloud if it ________.

Offers elasticity in the usage of servers.

A(n) ________ is a set of rules that programs on two communicating devices follow.

Protocol.

A(n) ________ is an information system (IS) that provides computer-based activity at a distance.

Remote action system.

S in https stands for ________.

Secure.

________ is a common TCP/IP application-layer protocol that is used for email transmissions.

Simple mail transfer protocol (SMTP).

A remote system designed by Alpha Solutions uses cameras and motion-sensing equipment to issue tickets for traffic violations. This system is an example of ________.

Telelaw enforcement.

Which of the following statements is true of an IP address?

The IP address that a domain name points to can be changed.

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

The cost of obtaining elastic resources will decrease.

Which of the following is a reason for an internal information system that uses Web services to not be considered a cloud?

The number of servers is fixed and is not made elastic.

Which of the following statements is true of digital subscriber lines (DSLs)?

Their signals do not interfere with voice telephone services conversations occur.

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

They reduce access costs by delivering data faster.

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

Transfer data and develop procedures.

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

True

A private internet that is used exclusively within an organization is called an intranet.

True

A routing server determines which content delivery network (CDN) server should respond to a request in real time.

True

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

True

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

True

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

True

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

True

A virtual private network (VPN) uses encryption and decryption to protect VPN communications from snooping.

True

A virtual private network uses the Internet to create the appearance of private, secure connections.

True

An elastic load balancer is a feature available in a private cloud that is not available in internal information systems, built using Web services.

True

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

True

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

True

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

True

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

True

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

True

Organizations that are required by law to have physical control over their data can benefit from cloud computing using private clouds and virtual private clouds.

True

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

True

Wireless mice use Bluetooth to connect to a computer.

True

A digital subscriber line (DSL) operates on the same lines as voice telephones.

True.

An internet is a network of networks that connects local area networks (LANs), wide area networks (WANs), and other internets

True.

Cloud computing can enable organizations to readily obtain elastic resources at very low costs.

True.

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

True.

The Hypertext Transport Protocol (http) is a TCP/IP application-layer protocol.

True.

Which of the following refers to an address on the Internet?

Uniform resource locator (URL).

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

Unlike a VPC, a private cloud does not require permission from regulating bodies to host sensitive data.

A(n) ________ connects computers at different geographical locations.

Wide area network.

Computers in two separate company sites must be connected using a(n) ________.

Wide area network.

Which of the following statements best defines the cloud?

the cloud is the elastic leasing of pooled computer resources over the internet.