Question 1

Question 1A company has brought laptop computers for training purposes and for information retrieval. These computers will use the internet and have multimedia capabilities.(a) State two advantages and one disadvantage of using the internet to search for information when compared to using CD-ROMs or paper-based systems.(b) The laptops are linked to the network using wireless connections. Give one advantage and one disadvantage of using wireless connections.

Accepted Answer

(a) The advantages of using the internet for information retrieval compared to CD-ROMs or paper-based systems are:Vast Information — The internet offers a vast and constantly updated pool of information, providing a wider range of resources than limited CD-ROMs or static paper-based systems.Convenience and Speed — Internet access allows quick and convenient access to information from anywhere, eliminating the need to carry physical media like CD-ROMs or search through printed materials.Disadvantage — Internet searching lacks the reliability and authenticity of CD-ROMs or printed sources due to mixed accuracy, making verification harder.(b) An advantage of using wireless connections is mobility. Wireless connections enable laptops to connect from different locations within coverage area without cables.A disadvantage of using wireless connections is that wireless connections can suffer from interference and obstacles, causing potential connectivity problems and lower reliability than wired connections.

Question 2

Question 2Booking seats on an aeroplane can be done by the Internet.(a) Give two advantages of using the Internet rather than making a telephone call for this task.(b) What type of file access would be needed to make a booking ? Give a reason for your choice.

Accepted Answer

(a) Two advantages of using the Internet rather than making a telephone call for this task are:24/7 Availability — Internet booking is available round the clock, allowing users to make reservations at any time, whereas telephone calls are limited by business hours and potential wait times.Self-Service and Control — Internet booking empowers users to independently browse available seats, choose preferences, and make reservations without relying on a customer service representative, providing greater control and customization.(b) For making a booking through the Internet, the type of file access needed is "Read-Only File Access." This allows users to view available flight options, seat layouts, and other booking-related information without altering the underlying data. Users can read and interact with the data to make informed decisions about their seat selections and travel plans.

Question 3

Question 3Computer technology has now allowed employees to work from home.(a) Give three advantages to employers of allowing employees to work from home.(b) Describe two advances in computer technology which have allowed working from home to become possible.

Accepted Answer

(a) Three advantages to employers of allowing employees to work from home are:Increased Productivity — Employees often experience fewer distractions and a more comfortable work environment at home, leading to potential boosts in productivity and task completion.Cost Savings — Allowing remote work can lead to reduced overhead costs, including office space, utilities, and amenities, contributing to cost savings for employers.Wider Talent Pool — Employers can tap into a broader talent pool by hiring remote workers, without being restricted by geographic location, potentially leading to the recruitment of specialized or diverse skill sets.(b) Two advances in computer technology enabling working from home are:High-Speed Internet — The widespread availability of high-speed internet connections allows seamless communication, data sharing, video conferencing, and access to cloud-based resources, enabling remote employees to collaborate effectively.Cloud Computing and Collaboration Tools — Cloud computing centralizes data and applications, eradicating the need for local servers. This lets remote workers access files and tools online, aided by collaborative platforms like video conferencing, project management, and document sharing, enabling teamwork and productivity despite physical separation.

Question 4

Question 4Mr. Singh has offices in three cities. He wants to connect his computers at various offices. He is unable to decide whether he should go for three LANs for different offices or should also create a WAN connecting these three LANs. Help him decide by suggesting what should he go for. Support your answer with proper justification.

Accepted Answer

Considering Mr. Singh's situation, where he has offices in three cities, the need for centralized resources, and the potential benefits of inter-office collaboration, it is advisable for him to create a WAN connecting the three LANs. Creating a WAN will give him the following benefits:Centralized Resources — A single WAN would allow centralized resources, such as servers and databases, to be shared among all offices. This can improve efficiency and data consistency.Efficient Communication — A WAN facilitates seamless communication and collaboration between offices, making it easier for employees to work together regardless of their physical location.Cost Efficiency — Sharing resources over a WAN can reduce the need for redundant equipment, leading to potential cost savings.

Question 5

Question 5Mr. Shah wants to have an online storage that his company and employees can use and it should not be shared by anyone else outside company. His business has offices in all major continents.(a) What type of computing is such type of online storage and usage known as ?(b) What type of communication media would be required by Mr. Shah's offices to communicate among themselves ?

Accepted Answer

(a) Private Cloud Computing.(b) To communicate among his offices located in different continents, Mr. Shah's company would require a communication medium that offers global connectivity and reliability. Wide Area Network would be most appropriate for his company as WANs can be implemented using dedicated lines and secured by virtual private networks (VPNs) to ensure data privacy and security.

Question 6

Question 1Transmission of computerised data from one location to another is calleddata transferdata flowdata communicationdata management

Accepted Answer

data communicationReason — Transmission of computerised data from one location to another is called data communication.

Question 7

Question 2When a group of computers is connected together in a small area without the help of some cables, it is calledRemote Communication Network (RCN)Local Area Network (LAN)Wide Area Network (WAN)Value Added Network (VAN)

Accepted Answer

Local Area Network (LAN)Reason — When a group of computers is connected together in a small area without the help of some cables, it is called Local Area Network (LAN).

Question 8

Question 3Full form of LAN isLegal All NetworkLegal Area NetworkLocal Area NetworkLost Area Network

Accepted Answer

Local Area NetworkReason — Full form of LAN is Local Area Network.

Question 9

Question 4Interactive combination of text, graphics, images, audio, video etc. is known as :DataInformationMultimediaInternet

Accepted Answer

MultimediaReason — Interactive combination of text, graphics, images, audio, video etc. is known as multimedia.

Question 10

Question 5Internet may be termed as an example ofLANMANWANAll the above

Accepted Answer

WANReason — Internet may be termed as an example of Wide Area Network (WAN).

Question 11

Question 6A Local Area Network (LAN) is a :network within a building or sitenetwork across a city, country or even the worldnetwork that contains servers across the worlda network with 2000 or more computers.

Accepted Answer

network within a building or siteReason — A Local Area Network (LAN) is a network within a building or site.

Question 12

Question 7A Wide Area Network (WAN) is a :network within a building or sitenetwork across a city, country or even the worldnetwork that contains no servernetwork with fewer than two computers.

Accepted Answer

network across a city, country or even the worldReason — A Wide Area Network (WAN) is a network across a city, country or even the world.

Question 13

Question 8Networks are useful because :no-one can copy your filesyou only need one printer per networkthe computers use less electricityeach user of the network can access files more easily.

Accepted Answer

you only need one printer per networkReason — Networks are useful because resources such as a printer, can be shared within a network.

Question 14

Question 9Storing and accessing data and programs over the internet is generally known asModern computingInternet computingWireless computingCloud computing

Accepted Answer

Cloud computingReason — Storing and accessing data and programs over the internet is generally known as Cloud computing.

Question 15

Question 10The communication media used for wireless network is collectively calledCables mediaSatellite mediaGuided mediaUnguided media

Accepted Answer

Unguided mediaReason — The communication media used for wireless network is collectively called unguided media.

Question 16

Question 1What do you understand by communication ?

Accepted Answer

Communication is the transfer of information from one person or device to another.

Question 17

Question 2What is networking ?

Accepted Answer

Networking is the process of joining computers together to form a network.

Question 18

Question 3What is a communication channel ?

Accepted Answer

A communication channel refers to a physical or virtual pathway that allows data and information to be transmitted between sender and receiver, facilitating communication in various forms.

Question 19

Question 4Name the different types of computer networks.

Accepted Answer

The different types of computer networks are:Local Area Networks (LANs)Metropolitan Area Networks (MANs)Wide Area Networks (WANs)

Question 20

Question 5What is Internet ? What are its uses ?

Accepted Answer

Internet is a computer-based world wide information network. It is composed of a large number of smaller interconnected networks.Some of the uses of Internet are:Businesses use the Internet to provide access to complex databases, such as financial databases.Companies carry out electronic commerce (commerce on internet) including advertising, selling, buying, distributing products, and providing after sales services.Businesses and institutions use the Internet for voice and video conferencing and other forms of communication that enable people to telecommute, or work from a distance.The use of electronic mail (e-mail) over the Internet has greatly speeded communication between companies among coworkers, and between other individuals.Individuals use the Internet for communication, entertainment, finding information and to buy and sell goods and services.

Computer Networking, Multimedia Basics

Application Oriented Questions

Objective Type Questions

Theoretical Questions