Internet_Textbook

Question 1

Internet

Answer 1

this is a global system of computers connected to each other.

Question 2

computers use the ___ for communication

Answer 2

TCP/IP

Question 3

internet is only one of many possible networks,

__ or ___ also exist

Answer 3

telephone networks

broadcasting networks

Question 4

the internet was first conceived in ___ by the _____ (APRA) of the US government

Answer 4

1969

advanced research projects agency

Question 5

APRA

Answer 5

Advanced research projects agency.

Question 6

NCSA

Answer 6

national center for supercomputing applications

Question 7

in 1993 which browser was created?

Answer 7

NCSA Mosaic web browser

Question 8

the internet is a ___ that uses ____ for communication

Answer 8

WAN

TCP/IP protocol

Question 9

the internet should not be confused with the WWW, which is one particular ____ that is based on the internet

Answer 9

application

Question 10

Internet application

Answer 10

is a software product that uses the internet infrastructure.

such as email, FTP or internet telephony

Question 11

Web application

Answer 11

• is an application program that runs inside a web browser.

- web applications have the advantage that they do not require other programs besides web browsers to run.

Question 12

example of web application ____

Answer 12

word processing software program that is used from within the web browser.

Question 13

Internet full definition

Answer 13

This is a global network of computers (or hosts) that all use the TCP/IP protocol. A wide variety of applications can use the Internet infrastructure, such as the WWW, e-mail, instant messaging, chat rooms etc.

Question 14

Intranet full definition

Answer 14

This is a private network that uses the same technology as the Internet. Intranets are not accessible to the public. -Companies and other organizations use Intranets to connect computers together to share and exchange information.

• Intranets should not be confused with local area networks (LANs), which are limited to one geographic area’ such as a building or a campus.
• An Intranet is limited to organization, regardless of whether the organization’s various offices are located in one area or not.

Question 15

www

Answer 15

world wide web

-refers to the viewing of webpages using a web browser software

Question 16

email

Answer 16

• electronic mail is one of the most common internet applications
• allows sending of messages from person to person and is therefore a personal communication medium.

Question 17

newsgroups

Answer 17

• users can read and post questions to a public (or restricted) bulletin board.
• Other users can read the information and respond.
• This is a popular method for questions over a broad range of different topics.

Question 18

FTP

Answer 18

File transfer using file transfer protocol (FTP):

• Files can be transferred from computer to computer using this protocol.
• To transfer the files, an FTP client is necessary.

Question 19

Instant messaging (chat rooms)

Answer 19

the sending of short messages to either one particular person or a group of people.

Question 20

voice over internet protocol (VOIP)

Answer 20

• This is the real-time communication that uses voice.

- The sound is sent using the Internet connection and not the (analogue) telephone line.

Question 21

internet protocol television (IPTV)

Answer 21

-This refers to the delivery of television programmes using the Internet infrastructure and not the traditional broadcasting medium.

Question 22

telnet

Answer 22

this allows the user to login to another system to perform administrative tasks.

Question 23

podcasts

Answer 23

• Audio files (e.g. radio programmes) can be automatically downloaded and listened to on either the computer or portable MP3 players.
• These files are often published on a regular basis and can be downloaded with the use of a “podcatching” program.

Question 24

____ program is used to download audio files published on regular basis.

Answer 24

podcatching

Question 25

define extranet

Answer 25

- Like the Intranet, an Extranet is a private network. - It is not limited to an organization's internal communication but is used to communicate with business partners. - These business partners can exchange data directly with the company using the Extranet. - An Extranet may or may not use the infrastructure of the Internet. - It is also possible to use communication lines that are not accessible to the public. - For example, the Intranet of a bank may be connected to an Extranet that is responsible for data transmission of the bank's money machines (i.e. ATMs), however, this Extranet not publicly accessible.

Question 26

the www greatly contributed to the internet's increase popularity because it allows users to easily access ____ and to browse the web

Answer 26

hypertext resources

Question 27

URL

Answer 27

uniform resource locator | -is a web address of a website.

Question 28

list the parts of URL

Answer 28

- protocol - subdomain - domain - path to the file - file name

Question 29

protocol

Answer 29

3 common types are ftp, http and https

Question 30

subdomain

Answer 30

in many cases, this is www, although it can be something else

Question 31

domain

Answer 31

all webpages of the same website have the same domain

Question 32

path to the file

Answer 32

indicates the directory on the server where the file can be found.

Question 33

file name

Answer 33

this is the actual file being displayed in the browser.

Question 34

what are protocols? full definition

Answer 34

- Protocols are communication standards that are needed for computers to communicate with each other in an organized manner. - Data transmission over the Internet requires several protocols to work together, with each protocol being responsible for different tasks. Protocols define standards on how communication should be started and ended, what to do in the case of transmission errors; and what to do if the network connection breaks down

Question 35

what is HTTP and HTTPS?

Answer 35

- hypertext transmission protocol and secure hypertext transmission protocol are protocols used by www. - needed to load webpages into a web browser. - built upon the TCP/IP protocols - responsible for problem-free data transmission between the web server and the client requesting the webpage.