Communication and the Internet :Unit 23 : The Internet and the world wide web

Question 1

What is the domain name?

Answer 1

this is part of the URL for resource on the Internet the domain name is used it will be converted to the correct IP address by the domain name service and the contact will take place.

Question 2

What is domain name service

Answer 2

This is an internet service that translate domain names into IP addresses.

Question 3

What is DoS(denial of service)?

Answer 3

an attack on a network that attempts to prevent legitimate users from accessing its services.

Question 4

What is the domain name system DNS system?

Answer 4

The DNS system is a network of servers.

Question 5

What is Internet Service Provider?

Answer 5

an organisation that provides its customers with a connection to the Internet.

Question 6

What is the router?

Answer 6

A piece of networking hardware used to forward packers of data from one network to another.

Question 7

What is the difference between internet and World Wide Web?

Answer 7

The Internet is a worldwide system that enables people to share data between devices, while world wide web is a service that runs with the help of Internet to provide access to hyperlinks of web servers

Question 8

What is world wide web?WWW.

Answer 8

This is a service in the internet which provides access to web pages linked together using the hypertext system.

Question 9

What is hypertext?

Answer 9

It is simply attacks that contains links (hyperlinks) that can be selected to go to another document or web page.

Question 10

How do you access the world wide web?

Answer 10

using the web browser.

Question 11

What is the internet?

Answer 11

Internet is a worldwide system of interconnected networks that enables information to be exchanged and shared.

Question 12

What is the web Browser’s job?

Answer 12

The job is to convert data received from a web server to human readable format.

Question 13

Who is the client and server when user access a website using client server system?

Answer 13

Client- web browser.
Server- web server.

Question 14

What is the process of getting a web page of other files using the world wide web?

Answer 14

the domain name is entered into the web browser. Then domain name service is turned to the ISP, from the domain name server.
The ISP

Question 15

What does URL stand for? What is it?

Answer 15

-Uniform resource locater
- it is a web address for a web page on individual file.

Question 16

What is hypertext markup language?

Answer 16

It is essentially a text document that contains any text to to be displayed along with.

Question 17

What is an IP address?

Answer 17

An IP address is a set of numbers that I used to identify one particular computer.

Question 18

What does an IP address consist of?

Answer 18

• original consists of 4 8 bit numbers.
• this address is expressed by 8 groups of hexadecimal numbers separated by colons.

Question 19

What is a switch?

Answer 19

A device that receive incoming data packers and reader examines them to their destination on local area network.

Question 20

What is the 4 8 bit number called?

Answer 20

Octets

Question 21

What is a wireless access point (WAP)?

Answer 21

A device that is used to connect one more computers wirelessly to an existing physical wired network.

Question 22

What is the modem?

Answer 22

(Short for modulator demodulator) it modulates and demodulates signals. them from digital to analogue and vice versa. send from and received by a computer over communication network.