CIW Lesson 3

What is the primary function of a network server?

To act as a central repository of programs and data to which all users connected to the network have access.

What is the term for a software application that enables users to access and view Web pages on the Internet?

Web browser.

What is the term for an HTML document containing one or more elements, such as text, images and hyperlinks, that can be linked to or from other HTML pages?

Web page.

What is the term for a collection of related HTML documents located on a host computer on the Internet?

Website.

A wireless access point (AP) is:

A device that enables wireless systems to communicate with each other, provided that they are on the same network.

What is a local area network (LAN)?

A group of computers connected within a confined geographic area.

In computer terminology, what is a network?

A group of two or more computers connected so they can communicate, share resources and exchange information with one another.

What is the World Wide Web?

A set of software programs that enables users to access resources on the Internet via hypertext documents.

What is the Internet?

A worldwide network of interconnected networks.

What happens when you click a hypertext link?

Another location in the same Web page or another Web page appears.

How are wide area networks (WANs) created?

By connecting LANs to one another via public carriers.

Which of the following elements required to connect to the Internet are generally acquired when you buy a computer?

Computer, operating system and TCP/IP.

Why might a Web page appear differently in different browsers?

Each browser interprets HTML somewhat differently.

Which of the following wireless mode types uses a centralized access point known as a wireless access point (AP)?

Infrastructure.

Which of the following dial-up connection types has been largely superseded by direct Internet connections?

Integrated Services Digital Network (ISDN).

What is the term for an organization that maintains a gateway to the Internet and rents access to customers on a per-use or subscription basis?

Internet Service Provider (ISP).

In the client/server environment, what is the main function of client software?

It enables users to communicate with and request information from the server.

What is the term for a device that converts digital data from a computer into analog signals and back again?

Modem.

What is the term for individual computers and devices that are connected to a network?

Nodes.

Which of the following enabled private (i.e., commercial) business to be conducted over networks connected to NSFnet?

Private telecommunications companies.

What is the term for a device that determines the best path for data to take across a network?

Router.

In 1969, which U.S. Department of Defense agency funded what would become the first global computer network?

The Advanced Research Projects Agency (ARPA).

What is the main purpose of a file server?

To store shared data.

What enables dissimilar systems connected to the Internet to communicate with one another?

Transmission Control Protocol/Internet Protocol (TCP/IP).

Which of the following is responsible for ensuring that data packets are transferred quickly and reliably across a network?

Transmission Control Protocol/Internet Protocol (TCP/IP).

What is a wide area network (WAN)?

Two or more local area networks (LANs) that span a wide geographic area.

Direct Internet connections:

provide continuous access to the Internet through permanent network connections.

In the client/server model:

the server is responsible for storing and providing information.