Topic Wise Solved Problems Question – Computer Sir Ki Class

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Q.1  
C07A-2017

Differentiate between Radio Link and Microwave in context of wireless communication technologies.

CBSE12D-2017

Q.2  
C07B-2017

Amit used a pen drive to copy files from his friend’s laptop to his office computer. Soon his office computer started abnormal functioning. Sometimes it would restart by itself and sometimes it would stop functioning totally. 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:
(i) Computer Worm
(ii) Computer Virus
(iii) Computer Bacteria
(iv) Trojan Horse

CBSE12D-2017

Q.3  
C07C-2017

Jai is an IT expert and a freelancer. He recently used his skills to access the Administrator password for the network server of Megatech Corpn Ltd. and provided confidential data of the organization to its Director, informing him about the vulnerability of their network security. Out of the following options (i) to (iv), which one most appropriately defines Jai.
Justify the reason for your chosen option:
(i) Hacker
(ii) Cracker
(iii) Operator
(iv) Network Admin

CBSE12D-2017

Q.4  
C07D-2017

Hi Speed Technologies Ltd is a Delhi based organization which is expanding its office setup to Chandigarh. At Chandigarh office campus, they are planning to have 3 different blocks for HR, Accounts and Logistics related work. Each block has 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 in (i) to (iv), keeping in mind the distances between various blocks/locations and other given parameters.

Shortest distances between various blocks/locations:

HR Block to Accounts Block 400 Metres
Accounts Block to Logistics Block 200 Metres
Logistics Block to HR Block 150 Metres
DELHI Head Office to CHANDIGARH Office 270 Km

Number of Computers installed at various blocks are as follows:

HR Block 70
Account Block 50
Logistics Block 40

 

(i) Suggest the most appropriate block/location to house the SERVER in the CHANDIGARH Office (out of the 3 Blocks) to get the best and effective connectivity. Justify your answer.

(ii) Suggest the best wired medium and draw the cable layout (Block to Block) to efficiently connect various Blocks within the CHANDIGARH office compound.

(iii) Suggest a device/software and its placement that would provide data security for the entire network of CHANDIGARH office.

(iv) Which of the following kind of network, would it be
(a) PAN
(b) WAN
(c) MAN
(d) LAN

CBSE12D-2017

Q.5  
C07B

Classify each of the following Web Scripting as Client Side Scripting and Server Side Scripting:
(i) JavaScripting (ii) ASP (iii) VB Scripting (iv) JSP

CBSE12A-2018

Q.6  
Bus and Star Topology

Differentiate between Bus Topology and Star Topology of Networks. What are the advantages and disadvantages of Star Topology over Bus Topology?

CBSE12A-2018

Q.7  
C07C

Write the expanded names for the following abbreviated terms used in Networking and Communications:
(i) SMTP (ii) VoIP (iii) GSM (iv) WLL

CBSE12A-2018

Q.8  
C07D

CASE STUDY BASED QUESTION:

Ayurveda Training Educational Institute is setting up its centre in Hyderabad with four specialised departments for Orthopedics, Neurology and Pediatrics along with an administrative office in separate buildings. The physical distances between these department buildings and the number of computers to be installed in these departments and administrative office as given as follows. You as a network expert have to answer the queries as raised by them in (i) to (iv).

Shortest distances between various locations in metres:

Administrative Office to Orthopedics Unit 55
Neurology Unit to Administrative Office 30
Orthopedics Unit to Neurology Unit 70
Pediatrics Unit to Neurology Unit 50
Pediatrics Unit to Administrative Office 40
Pediatrics Unit to Orthopedics Unit 110

Number of Computers installed at the various locations are as follows:

Pediatrics Unit 40
Administrative Office 140
Neurology 50
Orthopedics Unit 80

(i) Suggest the most suitable location to install the main server of this institution to get efficient connectivity.

(ii) Suggest the best cable layout for effective network connectivity of the building having server with all the other buildings.

(iii) Suggest the devices to be installed in each of these buildings for connecting computers installed within the building out of the following:
-Gateway
-Modem
-Switch

(iv) Suggest the topology of the network and network cable for efficiently connecting each computer installed in each of the buildings out of the following:
Topologies : Bus topology, Star Topology
Network Cable: Single Pair Telephone Cable, Coaxial Cable, Ethernet Cable

CBSE12A-2018

Q.9  
C07A

Differentiate between communication using Optical Fiber and Ethernet Cable in context of wired medium of communication technologies.

CBSE12A-2017

Q.10  
C07B

Janish Khanna used a pen drive to copy files from his friend’s laptop to his office computer. Soon his office 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:
(i) Computer Virus
(ii) Spam Mail
(iii) Computer Bacteria
(iv) Trojan Horse

CBSE12A-2017

Q.11  
C07C

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 organization 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? Justify the reason for your chosen option:
(i) Hacker
(ii) Cracker
(iii) Operator
(iv) Network Admin

CBSE12A-2017

Q.12  
C07D

Hi Standard Tech Training Ltd is a Mumbai based organization 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.


Shortest distances between various blocks/locations:

Admin Block to Account Block 300 Metres
Accounts Block to Training Block 150 Metres
Admin Block to Training Block 200 Metres
MUMBAI Head Office to CHENNAI Office 1300 KM

Number of computers installed at various blocks are as follows:

Training Block 150
Accounts Block 130
Admin Block 40

(i) 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.
(ii) Suggest the best wired medium and draw the cable layout (Block to Block) to efficiently connect various blocks within the CHENNAI office compound.
(iii) Suggest a device/software and its placement that would provide data security for the entire network of the CHENNAI office.
(iv) Suggest a device and the protocol that shall be needed to provide wireless Internet access to all smartphone/laptop users in the CHENNAI office

CBSE12A-2017

Q.13  
C07A

Differentiate between PAN and LAN types of networks.

CBSE12A-2016

Q.14  
C07B

Which protocol helps us to transfer files to and from a remote computer?

CBSE12A-2016

Q.15  
C07C

Write two advantages of 3G over 2G Mobile Telecommunication Technologies in terms of speed and services?

CBSE12A-2016


Q.17  
C07E

What is the basic difference between Computer Worm and Trojan Horse?

CBSE12A-2016

Q.18  
C07F

Categories the following under Client side and Server Side script category?
(i) Java Script
(ii) ASP
(iii) VB Sript
(iv) JSP

CBSE12A-2016

Q.19  
C07G

Intelligent Hub India is a knowledge community aimed to uplift the standard of skills and knowledge in the society. It is planning to setup 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.

Shortest distances between various locations:

VILLAGE 1 to YTOWN 2 KM
VILLAGE 2 to YTOWN 1.5 KM
VILLAGE 3 to YTOWN 3 KM
VILLAGE 1 to VILLAGE 2 3.5 KM
VILLAGE 1 to VILLAGE 3 4.5 KM
VILLAGE 2 to VILLAGE 3 3.5 KM
CITY Head Office to YHUB 30 KM

Number of Computers installed at various locations are as follows:

YTOWN 100
VILLAGE 1 10
VILLAGE 2 15
VILLAGE 3 15
CITY OFFICE 5

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

(i) 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.

(ii) Suggest the best wired medium and draw the cable layout (location to location) to efficiently connect various locations within the YHUB.

(iii) Which hardware device will you suggest to connect all the computers within each
location of YHUB?

(iv) Which service/protocol will be most helpful to conduct live interactions of Experts from Head Office and people at YHUB locations?

CBSE12A-2016

Q.20  
C07A-2015

Illustrate the layout for connecting 5 computers in a Bus and a Star topology of Networks.

CBSE12A-2015



Q.23  
C07D-2015

Out of the following, which is the fastest (i) wired and (ii) wireless medium of communication?
Infrared, Coaxial Cable, Ethernet Cable, Microwave, Optical Fiber

CBSE12A-2015


Q.25  
C07F-2015

Out of the following, which all comes under cyber crime?
(i) Stealing away a brand new hard disk from a showroom.
(ii) Getting in someone’s social networking account without his consent and posting on his behalf.
(iii) Secretly copying data from server of a organization and selling it to the other organization.
(iv) Looking at online activities of a friends blog.

CBSE12A-2015

Q.26  
C07G-2015

Xcelencia Edu Services Ltd. is an educational organization. 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 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 distances between the buildings and other given parameters.

Shortest Distances between various buildings:

ADMIN to SCIENCE 65M
ADMIN to BUSINESS 100M
ADMIN to ARTS 60M
SCIENCE to BUSINESS 75M
SCIENCE to ARTS 60M
BUSINESS to ARTS 50M
DELHI Head Office to HYDERABAD Campus 1600KM

Number of Computers installed at various building are as follows:

ADMIN 100
SCIENCE 85
BUSINESS 40
ARTS 12
DELHI Head Office 20

(i) Suggest the most appropriate location of the server inside the HYDERABAD campus (out of the 4 buildings), to get the best connectivity for maximum no. of computers. Justify your
answer.

(ii) Suggest and draw the cable layout to efficiently connect various buildings ‘within the HYDERABAD campus for connecting the computers.

(iii) Which hardware device will you suggest to be procured by the company to be installed to protect and control the intemet uses within the campus?

(iv) 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 TV

CBSE12A-2015