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Basic Questions And Answers Plus MCQs On Information And Communication (ICT) Technology

Updated on January 26, 2017

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The questions are of general nature, helpful for students preparing competitive exams in which a candidate's general awareness regarding computers is checked through objective and written questions.

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Basic Questions and Answers

Q.1 What is a computer?

Ans: A computer is an electronic device or machine that receives information or raw data, called input, and after processing it, provides a meaningful information called output.

Q.2 What is GIF?

Ans: GIF stands for Graphic Interchange Format. It's a file format for storing simple graphics and images that do not contain a rich range of colours.

Q.3 Define 1 GB.

Ans: GB stands for Gigabyte, a unit of measurement of computer memory or disc capacity.1 GB = 230 bytes = 1,073,741,824 bytes.

Q.4 What is a freeware? Give two examples.

Ans: Software that can be used with no monitory cost but with limited permission. Skype and Adobe Acrobat Reader are such examples.

Q.5 Define FTP.

Ans: FTP stands for File Transfer Protocol, a software standard, used for transferring files from one computer to another via the Internet.

Q.6 What is Google?

Ans: Google is an American multinational technology company, a publicly traded organisation that provides specialised internet related services and products that include searching information, online advertising technologies, cloud computing (storing, processing, managing, and accessing data and programs online), software and hardware.


A firewall
A firewall

Q.7 What is a firewall? Explain.

Ans:Firewall is a method of protecting a computer or a personal network or an organisation network from infectious malicious software entering the system through internet. Firewall is used to protect networks from any unauthorised access, while permitting legitimate transmissions to go through. It is different from an antivirus software which, prevents, detects and removes any malicious software that resides in your system. Like antivirus, firewall can't detect or remove a malicious program from your infected system. Actually, the concept of firewall is 'prevention is better than cure'.

Mainly, there are two kinds of firewalls: software and hardware. Most systems come with software firewalls, such as Windows Firewall in Windows XP, Windows Vista, and Windows 7, which makes them a quick and easy firewall solution. While, a hardware firewall is installed between an internet and the rest of the network, so your entire network is protected, regardless of whether or not each individual system has firewall software installed. Today, most routers have firewall capabilities. This is a basic example of a hardware firewall.

Q.8 What is a protocol? Give examples.

Ans:In Internet terminology, protocol usually refers to a set of rules that define an exact format for communication between systems. For example, the HTTP defines the format for communication between Web browsers ans Web servers. Other important sets of internet protocols are are TCP/IP (Transfer control protocol/Internet Protocol), SMTP (Simple Mail Transfer Protocol), and DNS (Domain name System).

Q.9 What is DNS?

Ans: The domain name system (DNS) maps internet domain names such as www.hubpages.com to the internet protocol (IP) network addresses they represent and enables websites to use names, rather than difficult-to-remember IP addresses such as 1104.25.34.39.

Q.10 What are hardwares?

Ans.The physical components or parts of of a computer system such as keyboard, monitor, mouse, data storage devices, hard disk drive, RAM, motherboard etc. They are tangibles as opposed to softwares.

HARDWARES
HARDWARES

Q.11 What are softwares? Give examples.

Ans. Softwares are the intangible components of a computer system, these are set of instructions written in a programming language that computer executes. These includes all kinds of computer programs, applications, and operating systems. Examples: are Windows 8, Dos, Linux , MS-windows are operating systems, Note paid, Tally, Photoshop etc. are applications.

Q. 12 What is a search engine?

Ans. Search engine is a program that search documents or information for specified keywords and returns a list of the documents or websites where the keywords are found. A number of websites provides the facility for users to search their documents, websites or any other information. Google and Yahoo search are very popular.

google search facility
google search facility

Q.13 What is the use of ASCII?

Ans. ASCII is abbreviation for American Standard Code for Information Interchange. This is a system that specifies code numbers for all the characters that appear on a computer Keyboard, plus other specialised characters. Each character on the keyboard of a computer is assigned a unique ASCII code number, e.g. A = ASCII 65. Characters that don't appear on the keyboard can be typed by holding down the Alt key and then pressing a series of digits on the number pad, e.g. ALT + 180, hold down ALT key and type the number 180 and then release the Alt key. The character '┤' will be typed i.e. ASCII code for ┤ is ALT + 180.

Q.14 What is Apache?

Ans. Apache is the most popular Web server software on the World Wide Web. It's a freely available Web server that is distributed under an "open source" license. It runs mainly on Unix (an operating system).

Q.15 What is blog and how is it different from article writing?

Ans. Blog is the contraction of the term weblog. A blog is essentially a website that contains discrete pieces of information posted by different users. New items of information are usually entered by contributors via a simple form, following the introduction of each new theme by a person who initiates the blog. Then it is submitted to the site, where they may be filtered or checked by an administrator before being posted. A blog contains news items, annotated links, short essays, documents, graphics and multimedia. These posts are usually in reverse chronological order and often take the form of a journal or diary. a blog is normally accessible to any internet user. But it can be seen by a limited users if you allow restricted permissions through your privacy settings.

A blog is different from article writing. Article is written in professional and formal tone. It contains data and facts based on thorough research and experience. They are edited by an editor before being published.Articles are written for magazine, newspaper, websites etc. But blog is posted only on a website. Personal opinions are on priority in blogging while in articles a writer's personal opinion can't be given priority unless there are facts and research on what is discussed on a topic.

Q.16 What is Bluetooth?

Ans. Bluetooth is a wireless technology standard which facilitates the transmission of signals over short distances up-to 10 metres around, between telephones, computers, and other devices in the form of microwaves. Bluetooth was introduced in 1994 as a wireless substitute for RS-232 cables. Bluetooth uses a standard 2.4 GHz frequency so that all Bluetooth-enabled devices will be compatible with each other.

Q.17 What is the difference between Internet and World Wide Web ?

Ans. World Wide Web and internet, both the terms are used interchangeably but ther are certain key differences. They are given below:

Difference between Internet and World Wide Web

S.No.
Internet
World Wide Web
1
It is a hardware part
It can be termed as software Part
2
It's a physical structure on which world wide web is based.
The World Wide Web is a model for sharing information, represents a method of accessing information through the Internet.
3
The Internet is a massive combination of millions of computers, connected via cables and other hardware devices such as router, modem etc., and wireless signals.
The Web is comprised of billions of digital page that are viewable through web browser software such as google chrome, internet explorer etc.
4
Information can be shared globally unlil the systems are connected through internet. It is governed by Internet Protocol
Web pages are connected using hypertext transfer protocol, the coding language which allows a user to jump to any other public web page using hyperlinks (highlighted texts or images).
5
Internet provides services to users such as emails, chat, file transfer service etc.
World Wide Web is one of the service provided by the Internet.
6
The first version of internet was the ARPANET( Advanced Research Projects Agency Network) in 1969 in USA.The standard networking protocol suite was introduced in 1982 by ARPANET
Invented by Tim Berners Lee, a British Scientist, in 1989
 homepage of the website
homepage of the website

Q.18 Define Website. Give an example.

A Web site is a related collection of web pages or electronic pages i.e. documents that are accessed through internet using a web browser, that includes a beginning page called a home page. Through home page other pages of a website can be accessed. It provides a menu.For example, the Hub pages website address is http://www.hubpages.com. The image shows how the Hub pages website look in 2017.

Q.19 Differentiate between client and server.

Ans. A client is a small computer or device such as smart phone, laptop etc. that has access to an available service from a large computer in a network called server. A server can either be a program or a dedicated device that has the capability to provide “services” such as resource and data sharing, and running computations for clients (computers in network). In other words, a server is an electronic machine, a large-capacity computer that can store a wide variety of files such as application and data files.

In simple words, a client is one who requests and server is one who fulfils the request if the request is valid.

Q. 20 What is a network?

Ans. A computer network is a group of two or more computers that connect with each other to share resources such as printer, scanner, data, files etc.


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