Important Questions for CBSE Class 12 Computer Science (C) Chapter 13 Communication Technologies

CBSE Class 12 Computer Science (C++) Chapter 13 Communication Technologies Important Questions – Free PDF Download

Free PDF download of Important Questions for CBSE Class 12 Computer Science (C++) Chapter 13 Communication Technologies prepared by expert Computer Science (C++) teachers from latest edition of CBSE(NCERT) books, On CoolGyan.Org to score more marks in CBSE board examination.

CBSE Class 12 Computer Science (C++) Important Questions
Chapter 13 Communication Technologies

Previous years Examination Questions
1 Marks Questions

Question 1:
Give two examples of PAN and LAN type of networks. Delhi 2016
Аnswer:
Two examples of PAN type of networks 3.
are as follows:

1. Upload the photo from your cell phone to your desktop computer.
2. Watch movies from an online streaming service to your TV.

Two examples of LAN type of networks
are as follows:

1. Small office or a Internet cafe.
2. Two or more computers connected in few distances.

Question 2:
Which protocol helps us to browse through Web pages using Internet browsers? Name any one Internet browser. Delhi 2016
Аnswer:
Protocol → HyperText Transfer Protocol A.
(HTTP)
Internet Browser → Google Chrome

Question 3:
Write two advantages of 4G over 3G Mobile Telecommunication Technologies in terms of speed and services. Delhi 2016
Аnswer:
Two advantages of 4G over 3G mobile telecommunication technologies are as follows:

Question 4:
Write two characteristics of Web 2.0. Delhi 2016; All India 2016
Аnswer:
Characteristics of Web 2.0 are as follows:

1. Free classification of information
2. User as a contributor

Question 5:
What is the basic difference between Trojan Horse and Computer Worm? Delhi 2016; All India 2016
Аnswer:
Computer worms are programs that replicate themselves from system to system without the use of a host file, while Trojan horses are impostor files that claim to be something desirable but, in fact are malicious.
Question 6:
Categorise the following under Client Side and Server Side script category:

1. VBScript
2. ASP
3. JSP
4. JavaScript
   All India 2016: Delhi 2016

Аnswer:
Client side scripting languages are as follows: JavaScript, VBScript
Server side scripting languages are as follows: ASP, JSP
Question 7:
Differentiate between PAN and LAN types of networks. All India 2016
Аnswer:
PAN network is a computer network organised around an individual person, while LAN network is a privately owned networks within a single building or campus upto a few kilometres in distance.
Question 8:
Which protocol helps us to transfer files to and from a remote computer? All India 2016
Аnswer:
Protocol → File Transfer Protocol ( FTP )
Question 9:
Write two advantages of 3G over 2G Mobile Telecommunication Technologies in terms of speed and services. All India 2016
Аnswer:
Two advantages of 3G over 2G Mobile Telecommunication Technologies are as follows:

1. The downloading and uploading speeds available in 3G technologies are upto 21 Mbps and 5.7 Mbps respectively while in 2G technologies the downloading and uploading speeds are upto 236 Kbps.
2. The services like mobile TV, video transfer and GPS systems are the additional features of 3G technology that are not available with 2G technologies.

Question 10:
Illustrate the layout for connecting
5 computers in a bus and a star topology of networks. All India 2015: Delhi 2015
Аnswer:


Question 11:
What is a spam mail? Delhi 2015
Аnswer:
Spam Mail is flooding on the Internet with many copies of the same meaning, in an attempt to force the message on people who would not otherwise choose to receive it.
Question 12:
Differentiate between FTP and HTTP.  Delhi 2015
or
What is the difference between HTTP and FTP? All India 2013
Аnswer:
FTP is a protocol used to upload files from a workstation to a FTP server or download files from a FTP server to a workstation while, HTTP is a protocol used to transfer files from a Web server onto a browser in order to view a Web page that is on the Internet.
Question 13:
Out of the following, which is the fastest

1. wired and
2. wireless medium of communication? Infrared, Coaxial Cable, Ethernet Cable, Microwave, Optical Fiber.
   All India 2015: Delhi 2015

Аnswer:

1. Wired-Optical Fiber
2. Wireless-Infrared

Question 14:
What is Worm? How is it removed? Delhi 2015
Аnswer:
A computer worm is a stand alone malware computer program that replicates itself in order to spread to other computers.
Worms can be removed by installing antivirus.
Question 15:
Out of the following, which one comes under cyber crime?

1. Stealing away a brand new computer from a showroom.
2. Getting in someone’s social networking account without his consent and posting pictures on his behalf to harass him.
3. Secretly copying files from’ server of a call center and selling it to the order organisation.
4. Viewing sites on a internal browser. Delhi 2015

Аnswer:
(ii) Getting in someone’s social networking account without his consent and posting pictures on his behalf to harass him.
Question 16:
What kind of data gets stored in cookies and how is it useful? All India 2015
Аnswer:
Cookies contain random alphanumeric text characters, which are determined by the specific Website that created that cookie. It helps you to access a site faster and more efficiently.
Question 17:
Differentiate between packet switching over message switching. All India 2015
or
Differentiate between packet switching and message switching technique in network communication? Delhi 2011
Аnswer:
In message switching, large storage space is required at each node to buffer the complete message blocks. On the other hand in packet switching, messages are divided into subset of equal length, which are generated in the source node and reassembled to get back the initial complete message in destination node.
Question 18:
What is Trojan Horse? All India 2015
Аnswer:
Trojan Horse It is a type of malware designed to provide unauthorised, remote access to a user’s computer. Trojan horses do not have the ability to replicate themselves. They can lead to viruses being installed on a machine since they allow the computer to be controlled by the trojan creator.
Question 19:
Write one characteristic each for 2G and 3G mobile technologies. Delhi 2014
Аnswer:
Characteristic of 2G mobile technology is that it has introduced data services for mobile, starting with text messaging.
Characteristic of 3G mobile technology is that it is faster than 2G and supports video calling.
Question 20:
What is the difference between video conferencing and chat? Delhi 2014
Аnswer:
Chat generally involves one-to-one communication. On the other hand, video conferencing means more than two persons are involved in a discussion.
Question 21:
Expand the following:

1. GPRS
2. CDMA
3. GSM Delhi 2014: All India 2014

or
Expand the following abbreviation:

1. GSM
2. CDMA Delhi 2009

Аnswer:

1. GPRS General Packet Radio Services.
2. CDMA Code Division Multiple Access.
3. GSM Global System for Mobile Communication.

Question 22:
Write two characteristics of Wi-Fi.  All India 2014
Аnswer:
Characteristics of Wi-Fi are as follows:

1. It is a wireless solution for getting connected to the Internet.
2. It is handly as well as availably throughout the journey.

Question 23:
What is the difference between E-mail and chat? All India 2014; Delhi 2013C
Аnswer:
In order to chat, you need have an account on the same service as the person you are chatting with.
On the other hand, in case of e-mail, it is not necessary, i.e. you can have an account from any provider and you can establish your own.
Question 24:
Which type of network (out of LAN, PAN and MAN) is formed, when you connect two mobiles using bluetooth to transfer a picture file? Delhi 2014
or
Which type of network (out of LAN, PAN and MAN) is formed, when you connect two mobiles using bluetooth to transfer a video.  All India 2014
Аnswer:
When two mobiles are connected using bluetooth to transfer a picture file, a PAN (Personal Area Network) is created.
Question 25:
Which of the following crime(s) does not come under cybercrime?

1. Copying some important data from a computer without taking permission from the owner of the data.
2. Stealing keyboard and mouse from a shop.
3. Getting into unknown person’s social networking account and start messaging on his behalf. All India 2013

Аnswer:
(ii) Stealing keyboard and mouse from a shop.
Question 26:
What is the difference between domain name and IP address? Delhi 2013
Аnswer:
IP address is an identifier for a computer or device on a TCP/IP network, e.g. 1.160.10.240 could be an IP address. Whereas, a domain name is a name that identifies one or more IP addresses, e.g. the domain name microsoft.com represents about a dozen IP addresses.
Question 27:
Write two advantages of using an optical fibre cable over an Ethernet cable to connect two service stations, which are 190 m away from each other. Delhi 2013
or
Write two advantages of using an optical fibre cable over an Ethernet cable to connect two service stations, which are 190 —> 200 m away from each other.  All India 2013
Аnswer:
Two advantages of using optical fibre cable over an Ethernet cable are as follows:

1. Low power because signals in optical fibres degrade less, low-power transmitters can be used.
2. Digital Signals Optical fibres are ideally suited for carrying digital information, which is especially useful in computer networks.

Question 28:
What is the difference between packet switching and circuit switching techniques? All India 2013 (C)
Аnswer:
(i) circuit Switching In this, firstly complete
physical connection between two computers is established. After that data are transmitted from the source computer to the destination computer.
e.g. In telephone call, circuit switching is used.
Packet Switching In this, there is a fixed size of packet and data packets are stored in the main memory.
This improves the access time.
Question 29:
Expand the following abbreviations:
(a) HTTP (b) VoIP
All India 2013
Аnswer:
(a) HyperText Transfer Protocol
(b) VoIP: Voice over Internet Protocol
Question 30:
Which of the following crime(s) is/are covered under cybercrime?

1. Stealing brand new hard disk from a shop.
2. Getting unknown person’s social networking account and start messaging on his behalf.
3. Copying some important data from a computer without taking permission from the owner of the data. Delhi 2013

Аnswer:
(ii) Getting into unknown person’s social networking account and start messaging on this behalf.
Question 31:
What out of the following, you will use to have an audio visual chat with an expert sitting in a far away place to fix-up technical issue?

1. E-mail
2. VoIP
3. FTP Delhi: All India 2012

Аnswer:
(ii) VoIP
Question 32:
Name one client side scripting language and one server side scripting language.  Delhi: All India 2012
Аnswer:
Client Side Scripting Language VBScript Server Side Scripting Language ASP
Question 33:
Which out of the following does not come under cyber crime?

1. Stealing a mouse from someone’s compuer.
2. Operating someone’s Internet banking account, without his knowledge.
3. Entering in someone’s computer remotely and copying data, without seeking his permission. All Indio 2012

Аnswer:
(i) Stealing a mouse from someone’s computer.
Question 34:
Write one advantage of star topology of network. Also, illustrate how 5 computers can be connected with each other using star topology of network. All India 2012
Аnswer:
Advantage of Star Topology is as follow:
No disruption to the network when connecting or removing devices.
In star topology 5 computers can be connected with each other using server like as follows:

Question 35:
Give one suitable example of each URL and domain name. Delhi; All India 2012
Аnswer:
URL //www.Gabsclasses.com/aboutus Domain name Gabsclasses.com
Question 36:
Which of the following come under cyber crime?

1. Operating someone’s Internet banking account, without his knowledge.
2. Stealing a keyboard from someone’s computer.
3. Working on someone’s computer with his/her permission. All India 2012

Аnswer:
(i) Operating someone’s Internet banking account, without his knowledge.
Question 37:
Write one advantage of bus topology of network. Also, illustrate how four computers can be connected with each other using star topology of network.  Delhi 2012
Аnswer:
Advantage of Bus Topology In bus topology, computers can be connected with each other using a single linear cable.
In star topology, four computers can be connected with each other using server in the following way:

Question 38:
Differentiate between bus and star topology of networks. Delhi 2011, 2009
Аnswer:
In star topology, nodes are connected to server individually whereas in bus topology all nodes are connected to server along a single length of cable.
Question 39:
What is VoIP? Delhi 2011
Аnswer:
VoIP (Voice over Internet Protocol) is simply the transmission of voice traffic over IP-based networks.
Question 40:
Which of the following will come under cyber crime?

1. Theft of a brand new sealed pack laptop.
2. Access to a bank account for getting unauthorised money transaction.
3. Modification in a company data with unauthorised access.
4. Photo copying a printed copy. Delhi 2011

Аnswer:
(ii) Access to a bank account for getting unauthorised money transaction.
Question 41:
In networking, what is WAN? How is it different from LAN? All India 2011
or
What is the difference between LAN and WAN? Delhi (C) 2009, All India 2009
Аnswer:
WAN (Wide area network) is a computer network that spans a relatively large geographical area. Typically, a WAN consists of two or more LANs.
LAN is a group of computers and network devices connected together, usually within the same building whereas WAN is not restricted to geographical location, although it might be confined within the bounds of state or country.
Question 42:
Differentiate between XML and HTML.  All India 2011
Аnswer:
XML was designed to describe data and to focus on what data is while HTML was designed to display data and to focus on how data looks. HTML is about displaying information while XML is about describing information.
Question 43:
What is Web 2.0? All India 2011
Аnswer:
Web 2.0 is associated with Web application that facilitates participatory information sharing, interoperability, uses centered dasign and collaboration on the world wide web.
Question 44:
What are cookies? All India 2011
Аnswer:
Cookies are files stored temporarily on WWW browser’s computer which allow the WWW server to store persistent information associated with browsing user.
Question 45:
What is the function of modem? Delhi 2011C
Аnswer:
Function of modem is to convert analog signals into digital signals and vice-versa. It is used to connect Internet.
Question 46:
Name any two components required for networking. Delhi 2011C
Аnswer:
Switch/Hub and Repeaters.
Question 47:
What is repeater? Delhi 2011C
Аnswer:
Repeater is an electronic device, that receives a signal and retransmits it at a higher level so that the signal covers longer distance. It’s required if the distance between source and destination is 90 m or more.
Question 48:
What was the role of ARPANET in the computer network? Delhi; All India 2010
Аnswer:
ARPANET (Advanced Research Projects Agency Network). The goal of this project was to connect computers at different universities and US defence.
ARPANET started with a handful of computer but it expanded rapidly.
Question 49:
Which of the following is not an unit for data transfer rate?

1. Bps
2. Abps
3. Gbps
4. Kbps Delhi 2010

Аnswer:
(ii) Abps is not unit for data transfer rate.
Question 50:
What is the difference between trojan horse and virus in terms of computers? Delhi 2010
Аnswer:
Unlike viruses, trojan horse do not replicate themselves but they can be just a lot destructive. One of the most insidious type of trojan is a program that claims to rid your computer of viruses but instead introduce viruses onto your computer.
Question 51:
What term we use for a software/ hardware device, which is used to block, unauthorised access while permitting authorised communications. This term is also used for a device or set of devices configured to permit, deny, encrypt, decrypt, or proxy all (in and out) computer traffic between different security domains based upon a set of rules and other criteria. Delhi; All India 2010
Аnswer:
Firewall
Question 52:
Write the full forms of the following:

1. GNU
2. XML Delhi 2010

Аnswer:

1. GNU GNU’S NOT UNIX
2. XML extensible Markup Language

Question 53:
Which of the following is not an unit for data transfer rate?

1. Mbps
2. Kbps
3. Sbps
4. Gbps Delhi 2011

Аnswer:
(iii) Sbps
Question 54:
What is the difference between virus and worm in the computer? All India 2010
Аnswer:
The main difference between virus and worm is the method by which they reproduce and spread. A virus is dependent upon a boot sector and the transfer of files between machines to spread, while a worm can run completely independently and spread itself through network connections.
Question 55:
Write the full form of the following:

1. FTP
2. FSF All India 2010

Аnswer:

1. FTP File Transfer Protocol
2. FSF Free Software Foundation.

Question 56:
Name any two common web browsers. All India 2010
Аnswer:
Google Chrome and Internet Explorer.
Question 57:
What is protocol? Which protocol is used to search information from Internet using an Internet browser? Delhi 2009
Аnswer:
Protocol is a set of rules that two or more computers must follow in order to communicate on network. HTTP (HyperText Transfer protocol) is used for searching information from Internet using Internet browser.
Question 58:
Name two switching techniques used to transfer data between two terminals (computers). Delhi; All India 2009
Аnswer:
Switching techniques used to transfer data between two terminals :

1. Circuit switching
2. Packet switching

Question 59 :
Expand the following abbreviations

1. HTTP
2. ARPANET All India 2009

Аnswer:

1. HTTP HyperText Transfer Protocol
2. ARPANET Advanced Research Projects Agency Network

Question 60:
What is protocol? Which protocol is used to copy a file from/to a remotely server ? All India 2009
Аnswer:
Protocol is a set of rules that two or more computers should follow in order to communicate on network. FTP (File Transfer Protocol) is used to copy a file from/to a remotely located server.
Question 61:
Expand the following terminologies

1. GSM
2. WLL Delhi 2009 (C)

Аnswer:

1. GSM Global System for Mobile Communication,
2. WLL Wireless Local Loop.

Question 62:
Distinguish between Website and Web browser. Delhi 2009 (c)
Аnswer:
Website is a collection of related Web pages served from a single Web domain while Web browser is a software that is used to access and display the Web pages.
Question 63:
What is firewall? Delhi 2009 (C)
Аnswer:
Firewall is a security system that prevents an unauthorised access to a private network. Firewalls can be implemented in both hardware and software or combination of both.
2 Marks Questions
Question 64:
Differentiate between communication using Optical Fibre and Ethernet Cable in context of wired medium of communication technologies. All India 2017
Аnswer:
Differences between Optical Fibre and Ethernet Cable are as follows :

Question 65:
Janish Khanna used a pen drive to copy files from his friend’s laptop to his office computer. Soon his computer started abnormal functioning. Sometimes it would restart by itself and sometimes it would stop different applications running on it. Which of the following options out of (i) to (iv), would have caused the malfunctioning of the computer? Justify
the reason for your chosen option: All India 2017

1. Computer Virus
2. Spam Mail
3. Computer Bacteria
4. Trojan Horse

Аnswer:
(i) Computer virus
Reason Computer virus can spread through external media such as CDs, pen drive etc. It is designed to infect the host program and gain control over the system without the owner’s knowledge.
Question 66:
Ms. Raveena Sen is an IT expert and a freelancer. She recently used her skills to access the Admin password for the network server of Super Dooper Technology Ltd. and provided confidential data of the organisation to its CEO, informing him about the vulnerability of their network security. Out of the following options (i) to (iv), which one most appropriately defines Ms. Sen? All India 2017
Justify the reason for your chosen option:

1. Hacker
2. Cracker
3. Operator
4. Network Admin

Аnswer:
(ii) Cracker
Reason Crackers are generally responsible for breaking into networks, cracking passwords in websites and programs and generally causing havoc through the Internet.
Question 67:
Write any two differences between twisted pair and coaxial pair cable. All India (C)2014
Аnswer:
Two differences between twisted pair and coaxial pair cable are as follows :

Question 68:
Give the full form of the following terms :

1. XML
2. FLOSS
3. HTTP
4. FTP Delhi 2011(c)

Аnswer:

1. XML extensible Markup Language
2. FLOSS Free Libre and Open Source Software
3. HTTP HyperText Transfer Protocol
4. FTP File Transfer Protocol

4 Marks Questions
Question 69:
Hi Standard Tech Training Ltd. is a Mumbai based organisation which is expanding its office set-up to Chennai. At Chennai office compound, they are planning to have 3 different blocks for Admin, Training and Accounts related activities. Each block has a number of computers, which are required to be connected in a network for communication, data and resource sharing.
As a network consultant, you have to suggest the best network related solutions for them for issues/problems raised by them in (i) to (iv), as per the distances between various blocks/locations and other given parameters.

1. Suggest the most appropriate block/location to house the SERVER in the CHENNAI office (out of the 3 blocks) to get the best and effective connectivity. Justify your answer.
2. Suggest the best wired medium and draw the cable layout (Block to Block) to efficiently connect various blocks within the CHENNAI office compound.
3. Suggest a device/software and its placement that would provide data security for the entire network of the CHENNAI office.
4. Suggest a device and the protocol that shall be needed to provide wireless Internet access to all smartphone/laptop users in the CHENNAI office. All India 2017

Аnswer:
(i) Training Block is the most appropriate block/location to house the SERVER in the CHENNAI office to get the best and effective connectivity because it has maximum number of computers.

(iii) Suggested device is firewall. And it will be placed where all messages are entering or leaving the entire network of the CHENNAI office.
(iv) Device: WiFi card
Protocol: TCP/IP
Question 70:
Uplifting Skills Hub India is a knowledge and skill community which has an aim to uplift the standard of knowledge and skills in the society. It is planning to set-up its training centers in multiple towns and villages pan India with its head offices in the nearest cities. They have created a model of their network with a city, a town and 3 villages as follows. As a network consultant, you have to suggest the best network related solutions for their issues/problems raised in (i) to (iv) keeping in mind the distances between various locations and other given parameters.

NOTE : In Villages, there are community centers, in which one room has been given as training center to this organisation to install computers.
The organisation has got financial support from the government and top IT companies.

1. Suggest the most appropriate location of the SERVER in the B_HUB (out of the 4 locations), to get the best and effective connectivity. Justify your answer.
2. Suggest the best wired medium and draw the cable layout (location to location) to efficiently connect various location within the B_HUB.
3. Which hardware device will you suggest to connect all the computers within each location of B_HUB?
4. Which service/protocol will be most helpful to conduct live interactions of Experts from Head Office and people at all locations of B_HUB? Delhi 2016

Аnswer:
(i) B_TOWN is the most appropriate location of the server inside the B_HUB because it has maximum number of computers.

Ethernet cable is the best wired medium to connect the various locations within the B HUB.
(iii) Switch
(iv) Telnet
Question 71:
Intelligent Hub India is a knowledge community aimed to uplift the standard of skills and knowledge in the society. It is planning to set-up its training centers in multiple towns and villages pan India with its head offices in the nearest cities.
They have created a model of their network with a city, a town and 3 villages as follows.
As a network consultant, you have to suggest the best network related solutions for their issues/problems raised in (i) to (iv), keeping in mind the distance between various locations and other given parameters.

NOTE In Villages, there are community centers, in which one room has been given as training center to this organisation to install computers. The organisation has got financial support from the government and top IT companies.

1. Suggest the most appropriate location of the SERVER in the YHUB (out of the 4 locations), to get the best and effective connectivity. Justify your answer.
2. Suggest the best wired medium and draw the cable layout (location to location) to efficiently connect various locations within the YHUB.
3. Which hardware device will you suggest to connect all the computers within each location of YHUB?
4. Which service/protocol will be most helpful to conduct live interactions of Experts from Head Office and people at YHUB locations? All India 2016

Аnswer:
(i) YTOWN is the most appropriate location of the server inside the YHUB because it has maximum number of computers.

Ethernet cable is the best wired medium to connect the various locations within the YHUB.
(iii) Switch
(iv) Telnet
Question 72:
Perfect Edu Services Ltd. is an educational organisation. It is planning to set-up its India campus at Chennai-with its head office at Delhi. The chennai campus has 4 main buildings-ADMIN, ENGINEERING, BUSINESS and MEDIA.
You as a network expert have to suggest the best network related solutions for their problems raised in
(i) to (iv), keeping in mind the distance between the buildings and other given parameters.

1. Suggest the most appropriate location of the server inside the CHENNAI campus (oof the 4 buildings), to get the best connectivity for maximum number of computers. Justify your answer.
2. Suggest and draw the cable layout to efficiently connect various buildings within the CHENNAI campus for connecting the computers.
3. Which hardware device will you suggest to be procured by the company to be installed to protect and control the Internet uses within the campus?
4. Which of the following will you suggest to establish the online face-to-face communication between the people in the Admin Office of CHENNAI campus and DELHI Head Office?
   (a) Cable TV
   (b) E-mail
   (c) Video Conferencing
   (d) Text Chat Delhi 2018

Аnswer:
(i) ADMIN is the most appropriate location of the server inside the CHENNAI campus because it has maximum number of computers.

(iii) Firewall
(iv) (c) Video Conferencing
Question 73:
Xcelencia Edu Services Ltd. is an educational organisation. It is planning to set-up its India campus at Hyderabad with its head office at Delhi. The Hyderabad campus has 4 main buildings -ADMIN, SCIENCE, BUSINESS and ARTS. You as a network expert have to suggest the best network related solutions for their problems raised in (i) to (iv), keeping in mind the distances between the buildings and other given parameters.

1. Suggest the most appropriate location of the server inside the HYDERABAD campus (out of the 4 buildings), to get the best connectivity for maximum number of computers. Justify your answer.
2. Suggest and draw the cable layout to efficiently connect various buildings within the HYDERABAD campus for connecting the computers.
3. Which hardware device will you suggest to be procured by the company to be installed to protect and control the Internet uses within the campus?
4. Which of the following will you suggest to establish the online face-to-face communication between the people in the Admin Office of HYDERABAD campus and DELHI Head Office?
   (a) E-mail
   (b) Text Chat
   (c) Video Conferencing
   (d) Cable TVAII India 2015

Аnswer:
(i) ADMIN is the most appropriate location of the server inside the HYDERABAD campus because it has maximum number of computers.

(iii) Firewall
(iv) Videoconferencing
Question 74:
Trine Tech Corporation (TTC) is a professional consultancy company. The company is planning to set-up their new offices in India with its hub at .Hyderabad. As a network adviser, you have to understand their requirement and suggest them the best available solutions. Their queries are mentioned as (i) to (iv) below.
Physical locations of the blocks of TTC

1. What will the most appropriate block, where TTC should plan to install their server?
2. Draw a block to block cable layout to connect all the buildings in the most appropriate manner for efficient
   communication.
3. What will be the best possible connectivity out of the following, you will suggest to connect the new set-up of offices in Bangalore with its London based office.
   • Satellite Link
   • Infrared
   • Ethernet
4. Which of the following device will be suggested by you to connect each computer in each of the buildings?
   • Switch
   • Modem
   • Gateway Delhi 2014

Аnswer:
(i) TTC should install its server in Finance Block because it has maximum number of computers.

(iii) Satellite Link
(iv) Switch
Question 75:
Tech Up Corporation (TUC) is a professional consultancy company. The company is planning to set-up their new offices in India with its hub at Hyderabad. As a network adviser, you have to understand their requirement and suggest to them the best available solutions. Their queries are mentioned as (i) and (iv) below. You have to understand their requirement and suggest to them the best available solutions. Their queries are mentioned as (i) and (iv) below.

1. What will the most appropriate block, where TUC should plan to install their server?
2. Draw a block to block cable layout to connect all the buildings in the most appropriate manner for efficient communication.
3. What will be the best possible connectivity out of the following, you will suggest to connect the new set-up of offices in Bangalore with its London based office?
   • Infrared
   • Satellite Link
   • Ethernet Cable
4. Which of the following devices will be suggested by you to connect each computer in each of the buildings?
   • Gateway
   • Sqwitch
   • Modem All India 2014

Аnswer:
(i) TUC should install its server in Human Resource Block as it is having maximum number of computers.

(iii) Satellite Link
(iv) Swatch
Question 76:
G.R.K International Inc. is planning to connect its Bengaluru Office Setup with its Head Office in Delhi. The Bengaluru Office G.R.K. International Inc. is spread across an area of approx. 1 square kilometres consisting of 3 blocks.
Human Resources, Academics and Administration. You as network expert have to suggest answers to the four queries (i) to (iv) raised by them.

1. Suggest the most suitable block in the Bengaluru Office Setup, to host the server. Give a suitable reason with your suggestion.
2. Suggest the cable layout among the various blocks within the Bengaluru Office Setup for connecting the blocks.
3. Suggest a suitable networking device to be installed in each of the blocks essentially required for connecting computers inside the blocks with fast and efficient connectivity.
4. Suggest the most suitable media to provide secure, fast and reliable data connectivity between Delhi Head Office and the Bengaluru Office Setup. Delhi 2013

Аnswer:
(i) Human Resources, because it has maximum number of computers.

(iii) Hub/Switch
(iv) Satellites
Question 77:
Expertia Professional Global (EPG) in an online corporate training provider company for IT related courses. The company is setting up their new campus in Mumbai. You as a network expert have to study the physical locations of various buildings and the number of computers to be installed. In the planning phase, provide the best possible answers for the queries (i) to
(iv) raised by them.
Physical Locations of the buildings of EPG

1. Suggest the most appropriate building, where EPG should plan to install the server.
2. Suggest the most appropriate building to building cable layout to connect all three buildings for efficient communication.
3. Which type of network out of the following is formed by connection the computers of these three buildings?
   (a) LAN
   (b) MAN
   (c) WAN
4. Which wireless channel out of the following should be opted by EPG to connect to students of all over the world?
   (a) Infrared
   (b) Microwave
   (c) Satellite Delhi 2013

Аnswer:
(i) EPG should install the server in the Faculty Studio Building because it has maximum

(iii) LAN(Local Area Network)
(iv) Satellite
Question 78:
Granuda consultants are setting up a secured network for their office campus at Faridabad for their day-to-day office and Web based activities. They are planning to have connectivity between 3 buildings and the head office situated in Kolkata. Answer the questions (i) to (iv) after going through the building positions in the campus and other details, which are given below:

1. Suggest the most suitable place (i.e. block) to house the server of this organisation. Also, give a reason to justify your suggested location.
2. Suggest a cable layout of connections between the building inside the campus.
3. Suggest the placement of the following devices with justification : ,
   (a) Switch (b) Repeater
4. The organisation is planning to provide a high speed link with its head office situated in the Kolkata using a wired connection. Which of the following cable will be most suitable for this job?
5. (a) Optical fibre (b) Coaxial cable (c) Ethernet cable All India 2012

Аnswer:
(i) The most suitable place to house the server
in building JAMUNA because it has maximum number of computers.

(iii) Switches are needed in every building as they help share bandwidth in every building.
Repeaters may be skipped as per above layout(because distance is less than 100 m) however if building RAVI and building JAMUNA are directly connected, we can place a repeater there as the distance between these two building is more than 100 m.
(iv) Coaxial cable
Question 79:
Workalot consultants are setting up a secured network for their office campus of Gurgaon for their day-to-day office and Web based activities. They are planning to have connectivity between 3 buildings and the head office situated in Mumbai. Answer the questions (i) to (iv) after going through the building positions in the campus and other details, which are given below:

1. Suggest the most suitable place (i.e. building) to house the server of this organisation. Also, give a reason to justify your suggested location.
2. Suggest a cable layout of connections between the buildings inside the campus.
3. Suggest the placement of the following devices with justification :
   (a) Switch
   (b) Repeater
4. The organisation is planning to provide a high speed link with its head office situated in the Mumbai using a wired connection. Which of the following cables will be most suitable for this job?
   (a) Optical fibre
   (b) Coaxial cable
   (c) Ethernet cable Delhi 2012

Аnswer:
(i) Building RED is the suitable place to house the server because it has maximum number of computers.

(iii) Switches are needed in every building as they help share bandwidth in every building.
Repeaters may be skipped as per above layout (because distance is less than 100 m) however if building Green and building Red are directly connected, we can place a repeater there as the distance between these two buildings is more than 100 m.
(iv) Coaxial cable
Question 80:
Quick Learn University is setting up its academic blocks at Prayag Nagar and planning to set-up a network. The university has three academic blocks and one human resource centre as shown in the diagram below:

1. Suggest the most suitable place (i.e. block/centre) to install the server of this university with a suitable reason.
2. Suggest an ideal layout for connecting these block/centre for a wired connectivity.
3. Which device will you suggest to be placed/installed in each of these blocks/centre to efficiently connect all the computers with in these blocks/centre ?
4. The university is planning to connect its admission office in the closest big city, which is more than 250 km from university, which type of network out of LAN, MAN or WAN will be formed? Justify your answer. Delhi 2011

Аnswer:
(i) The most suitable place to install the server is HR Centre because it has maximum number of computers.

(iii) Switch
(iv) Wan as it is another city.
Question 81:
Great Studies University is setting up its academic schools at Sunder Nagar and planning to set-up a network. The university has three academic schools and one administration centre as shown in the diagram:

1. Suggest the most suitable place (i.e. school/centre) to install the server of this university with a suitable reason.
2. Suggest an ideal layout for connecting these block/centre for a wired connectivity.
3. Which device will you suggest to be placed/installed in each of these school/centre to efficiently connect all the computers with in these schools/centre.
4. The university is planning to connect its admission office in the closest big city, which is more than 350 km from university. Which type of network out of LAN, MAN or WAN will be formed? Justify your answer. All India 2011

Аnswer:
(i) The most suitable place to install the server is Admin Centre because it has maximum number of computers.

(iii) Switch device
(iv) WAN as it is outside the city.
Question 82:
Learn Together is an educational NGO. It is setting up its new campus at Jabalpur for its Web-based activities. The campus has four compounds as shown in the diagram below:

1. Suggest a cable layout of connections between the compounds.
2. Suggest the most suitable place (i.e. compound) to house the server for this NGO. Also, provide a suitable reason for your suggestion.
3. Suggest the placement of the following devices with justification:
   (a) Repeater
   (b) Hub/Switch
4. The NGO. is planning to connect its international office situated in Mumbai, which out of the following wired communication link, will you suggest for a very high speed connectivity?
   (a) Telephone analog line
   (b) Optical fibre
   (c) Ethernet cable. Delhi 2010

Аnswer:

(ii) The most suitable place to house the server is Training Compound because it has maximum number of computers. •
(iii) (a) Repeater As per one layout (shown in (i), the repeater can be avoided as all distances between the compounds are <=100m.
(b) Hub/Switch Training building as it is hosting the server.
(iv) Optical fibre.
Question 83:
‘Vidya for All’ is an educational NGO. It is setting up its new campus at Jaipur for its Web-based activities. The campus has four buildings as shown in the diagram below:

1. Suggest a cable layout of connections between the buildings.
2. Suggest the most suitable place (i.e. building) to house the server for this NGO. Also, provide a suitable reason for your suggestion.
3. Suggest the placement of the following devices with justification
   (a) Repeater (b) Hub/Switch.
4. The NGO is planning to connect its international office situated in Delhi. Which out of the following wired communication links, will you suggest for a very high speed connectivity?
   (a) Telephone analog line
   (b) Optical fibre
   (c) Ethernet cable. All India 2010

Аnswer:

(ii) The most suitable place to house the server for this NGO is Training Building because it has the maximum number of computers.
(iii) (a) Repeater As per one layout (shown in (i)), the repeater can be avoided as all distances between the compounds are <= 100 m.
(b) Hub Switch Training building as it is hosting the server
(iv) Optical fibre
Question 84:
Freshminds University of India is starting its first campus in Ana Nagar of South India with its centre admission office in Kolkata. The university has three major blocks comprising of Office block, Science block and Commerce block is in 5 km area campus. ”
As a network expert, you need to suggest the network plan as per (i) to (iv) to the authorities keeping in mind the distance and other given parameters

1. Suggest the authorities, the cable layout amongst various blocks inside university campus for connecting the blocks.
2. Suggest the most suitable place (i.e. block) to house the server for this university with a suitable reason.
3. Suggest an efficient device from the following to be installed in each of the block to connect all the computers.
   (a) Modem
   (b) Switch
   (c) Gateway
4. Suggest the most suitable (very high speed) service to provide data connectivity between admission office located in Kolkata and the campus located in Ana Nagar from the following options:
   • Telephone line
   • Fixedline dial-up connection
   • Coaxial cable network
   • GSM
   • Leased line
   • Satellite connection. Delhi 2010,2009

Аnswer:

(ii) The most suitable place to house the server is Science Block because it has maximum number of computers.
(iii) Switch is the device to be installed in each of the block to connect all the computers.
(iv) Satellite connection
Question 85:
Eduminds University of India is starting its campus in a small town Parampur of Central India with its centre admission office in Delhi. The university has three major buildings comprising of admin building academic buildings and research building in 5 km area campus. As a network expert, you need to suggest the network plan as per (i) to (iv) to the authorities keeping in mind the distances and other given parameters.

1. Suggest the authorities, the cable layout amongst various buildings inside the university campus for connecting the buildings.
2. Suggest the most suitable place (i.e.building) to house the server of this organisation, with a suitable reason.
3. Suggest an efficient device for the following to be installed in each of thebuilding to connect all the computers
   (a) Gateway
   (b) Modem 1
   (c) Switch
4. Suggest the most suitable (very high speed) service to provide data connectivity between admission building located in Delhi and the campus located in Parampur form the following options:
   • Telephone line
   • Fixedline dial-up connection
   • Coaxial cable network
   • GSM
   • Leased line
   • Satellite connection. All India 2009

Аnswer:

(ii) The most suitable place to house the server is Academic Building because it has maximum number of computers.
(iii) Switch is to be installed in each of building to connect all the computers.
(iv) Satellite connection
Question 86:
Institute of Distance Learning is located in Pune and is planning to go in for networking of four wings for better interaction. The details are shown below:

1. Suggest the type of networking (LAN, MAN, WAN) for connecting Lib Wing to Admin Wing. Justify your answer.
2. Suggest the most suitable place (i.e. wing) to house the server, with a suitable reason.
3. Suggest and placement of the following devices with reasons
   (a) Repeater (b) Switch
4. The Institu 3 is planning to link its study centre situated in Delhi. Suggest an economic way to connect it with reasonably high speed. Justify your answer. Delhi 2009C

Аnswer:

1. Since, the distance between Lib Wing and Admin Wing is small, so type of networking is small, i.e. LAN.
2. The most suitable place to house the server is student wing because it has maximum number of computers.
3. (a) Repeater should be installed between Student wing and Admin wing as distance is more than 60 m.
   (b) Switch should be installed in each wing to connect several computers.
4. Broadband connection as it is between economical and speedy.