Lesson 3 Part A

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What are T carriers?

Dedicated digital telephone lines used in North America

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 are E carriers?

Dedicated digital telephone lines used in Europe

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 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

Direct Internet connections

provide continuous access to the Internet through permanent network connections.

Which device connects a wireless local area network to a wireless phone network at broadband speeds?

4G mobile hotspot

What is the Internet?

A worldwide network of interconnected networks

What is a wide area network (WAN)?

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

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

Router

What is the main purpose of a file server?

To store shared data

An enabled private (i.e., commercial) business to be conducted over networks connected to NSFnet?

Private telecommunications companies

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

Web Site

A wireless mode types uses a centralized access point known as a wireless access point (AP)?

Infrastructure

A dial-up connection types has been largely superseded by direct Internet connections?

Integrated Services Digital Network (ISDN)

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

Nodes

A statement that is true about Digital Subscriber Line (DSL)?

DSL is similar to Integrated Services Digital Network (ISDN) lines, but DSL is much faster.

What are fractional T and E lines?

Digital phone lines consisting of one or more individual T or E carrier channels, rather than the entire T or E carrier line

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 a local area network (LAN)?

A group of computers connected within a confined geographic area

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 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

The 802.11 standard, which was developed by the Institute of Electrical and Electronics Engineers (IEEE), refers to a family of specifications for:

wireless network technology.

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.

A LAN can be connected to the Internet by a router, provided that the LAN uses

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

Is responsible for ensuring that data packets are transferred quickly and reliably across a network?

Transmission Control Protocol/Internet Protocol (TCP/IP)

How are wide area networks (WANs) created?

By connecting LANs to one another via public carriers

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

Transmission Control Protocol/Internet Protocol (TCP/IP)

In the client/server mode

the server is responsible for storing and providing information.

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 World Wide Web?

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

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

Modem

A connection type that provides the fastest direct connection speed?

Fiber-optic cable

What happens when you click a hypertext link?

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

Why might a Web page appear differently in different browsers?

Each browser interprets HTML somewhat differently.

For what purpose would you use a cable modem?

To connect to the Internet through your cable television system

Elements that are required to connect to the Internet are generally acquired when you buy a computer?

Computer, operating system and TCP/IP

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