Information Systems Test 3b

Communication Media are ______, _______ or ________ the create a path over which information travels in a network.

Analog signals are measured in ________.

Digital communication signals are measured in _______.

A _________ converts digital to analog and vice versa.

A __________ communications signal is represented in binary.

___________ communication signals are represented as a continuous wave (sound, light, etc..)

Three types of wired media are:

______ _______copper wire technology is most commonly used for networks because of cost.

_______ ________ is more reliable than TWISTED PAIR, but also more costly. (Cable TV and internet).

Fiber optic is the highest speed line that carries signals by means of ________ _______ generated by _______.

Three major types of wireless media are:

_________ _________ are companies that provide data communications.

Infrared transmission uses an infrared _______ ________ and needs line of sight (wireless keyboards and mouse).

Microwaves are high frequency _________ _________ that travel in a _________ ________.

Each satellite rotates around earth at exactly earth's ________.

Satellites communicate with earth with _________ pointed at the satellite.

The _________ is the world's largest network which connects over 400,000 smaller networks in over 200 hundred countries.

The internet is commonly referred to as a "_________ of _________"

_________ are high speed, high capacity transmission lines that use the newest communications technology to transmit data across the internet.

A collection of modems and other equipment that allows you to connect to a network that is connected to the internet is called a ________.

A __________ connects to the internet backbone.

_________ are private mini NAPS.

There are _______ main NAPS, which are heavily congested.

It takes these three things to connect to the internet:

A subset of the Internet which is a connection of servers that can store information in multimedia form is referred to as the _________ _______ ________.

__________ networks are not on the World Wide Web.

The protocol used by all computers on the internet is ______________.

_________ __________ are the wired or wireless means of connecting to the internet.

An expression of how much data can be sent through a communications channel in a given period of time is called ____________.

____________ is a very high speed connection.

Five major types of wired connections are:

Four major types of wireless connections are:

A telephone  (dial up) connection is _______ user.

The slowest, but least expensive type of wired connection is ___________.

________ on a phone line impacts speed.

High Speed (ISDN) phone lines use a combination of ___________ and ________ to ___________ the speed of standard dial up phone lines.

ISDN lines are ________ user.

A DSL line is _________ user.

DSL lines use a combination of software and hardware to make transmission speeds ____ to ___ times faster than standard dial up phone lines.

A T1 line is ___________ user.

A ________ line is expensive, but best for business.

A T1 line can be ____ to ______ times faster than standard dial up modem lines.

A cable modem is ________ user and a ________ connection.

A cable modem's incoming transmission can be ______ to ______ times faster than a standard dial up modem telephone line, but outgoing is only ______ times faster.

With a _______ ________, security can be an issue.

A ______ _______ may not always be available to businesses.

A _________ connection requires a dish to transmit and receive __________.

A ________ connection requires a device to be within a few hundred feet of the access point or "______ ______" and must have necessary _________. The access points are then connected to the internet.

3G uses an existing _______ _____ ______ (network) so it does not need _______ _______.

A _____ wireless connection is like wi-fi but access point can be 6 to 10 miles away.

____________ is the transmission of data from a remote computer to a local computer.

__________ is the transmission of data from a local computer to a remote computer.

A company or organization that connects you to the internet is called an ________.

4 types of FREE SERVICE PROVIDERS are:

________ _________ providers are local companies that will sell you internet access with limited support.

3 basic types of ISPs are:

_________ _________ providers offer more reliable access and technical support.

_____ ________ uniquely identify every computer and other devices connected to the internet.

A cooperate of Universities and some other businesses that added faster communication lines which only they can use is referred to as ______ ___.

_______ _______ are the number one carrier of viruses.

In order to open an email attachment, a computer must have compatible ________.

__________ is a system that allows documents scattered across many Internet siteds to link together.

With hypertext, a ______ or _______ in one document becomes a connection to another document.

_______ is a set of special instructions that are used to specify document, structure, format and links to other documents.

A _______ is the location of a web domain name (in a computer) somewhere on the internet.

A _____ ______ is a document of the world wide web the may include text, pictures, sound and video.

The _______ ______ is a welcome page that identifies the site.

A _____  is a string of characters that points to a specific piece of information anywhere on the web. In other words, the website's _______ ________.

scheme://domain:port/path?query_string#fragment_id is a type of _____.

_______ are types of software that enable users to find and view web pages.

_____ _______ are gateway web sites that make using the internet easier. Yahoo, Netscape and AOL for example.

_________ __________ allow you to find a specific document through keyword searches and menu choices.

A _______-____ is a program that adds a certain feature to a browser allowing it to play or view a certain file.

Adobe Acrobat would be one type of _____ -___.

___________ is when customized text, video and/or audio are sent to you automatically on a regular basis.

Most _________ get in your computer through the internet when you download information, usually video, or open e-mail attachments.

__________ are programs that attach themselves to your hard drive and monitor every activity you perform on your computer.

Spyware that causes pop-ups to appear are called ___________.

__________ allows you to connect to a remote computer on the Internet and utilize all the services of the remote computer. (often used to connect to a mainframe).

Conducting business on the internet is termed ____________.

Worms and trojans are __________ of viruses.