CBSE Class 12 Computer Science Computer Network MCQs Set 03

Question. By default, web pages are saved in the ……… folder.
(a) Download
(b) Document
(c) Picture
(d) Music

Answer : B

Question. In order to allow data transfer from server to only the intended computers which network device is required in the lab to connect the computers?
(a) Switch
(b) Hub
(c) Router
(d) Gateway

Answer : A

Question. Network formed between computers which are spread across the continents is called
(a) LAN
(b) WAN
(c) MAN
(d) WLAN

Answer : B

Question. A browser is a program, which is used to
(a) connect to Internet
(b) create websites
(c) view sites on web
(d) All of the above

Answer : D

Question. Which of the following topology contains a backbone cable running through the whole length of the network?
(a) Star
(b) Bus
(c) Mesh
(d) Tree

Answer : B

Question. Which of the following is an advantage of networking?
(a) Application sharing
(b) File sharing
(c) User communication
(d) All of these

Answer : D

Question. A website is a collection of
(a) web server
(b) web page
(c) web browser
(d) WWW

Answer : B

Question. A modem is connected in between a telephone line and a
(a) computer
(b) serial port
(c) network
(d) communication adapter

Answer : A

Question. Web page is created using language
(a) XML
(b) Java
(c) C
(d) HTML

Answer : D

Question. In specific, if systems use separate protocols, which one of the following devices is used to link two systems?
(a) Repeater
(b) Gateway
(c) Bridge
(d) Hub

Answer : B

Question. Which switching technique follows the store and forward mechanism?
(a) Circuit
(b) Message
(c) Packet
(d) All of these

Answer : B

Question. Mozilla is a free internet software that includes
(a) Web browser
(b) email client
(c) HTML editor
(d) All of these

Answer : D

Question. What is the size of IPv4?
(a) 16 bits
(b) 32 bits
(c) 64 bits
(d) 128 bits

Answer : B

Question. 1 Gbps is equal to
(a) 125 Mbps
(b) 125 Bps
(c) 125 Kbps
(d) 125 Gbps

Answer : A

Question. Which of the following statement(s) is/are true about URL?
(a) URL stands for Uniform Resource Locator.
(b) You can enter URL into address bar.
(c) Both (a) and (b)
(d) It is not necessary for URL to be unique.

Answer : C

Assertion and Reason Based MCQs

Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.
(A) Both A and R are true and R is the correct explanation for A.
(B) Both A and R are true and R is not correct explanation for A.
(C) A is true but R is false.
(D) A is false but R is true.

Question. Assertion (A) : A hub is a networking device used to create LAN
Reason (R) : A hub is a device that is used to segment networks into different subnetworks.

Answer : C

Question. Assertion (A) : CSMA/CA is used for collision handling in wireless networks.
Reason (R) : In ACK method of CSMA/CA, signal is generated by receiver node only if data is received in valid form.

Answer : A

Question. Assertion (A) : Parity check ensures error free data transmission.
Reason (R) : The sum of data bits calculated from digital data that is used to ensure the data integrity at the receiver’s end.

Answer : B

Question. Assertion (A) : Routers transmit data in more efficient way.
Reason (R) : Routers maintains a routing table.

Answer : A

Case-based MCQs

Attempt any 4 sub-parts from each question. Each subpart carries 1 mark.
I. Meerut school in Meerut is starting up the network between its different wing,. There are four buildings named as S, J, A and H. The distance between various buildings is as follows:
A to S 200 m
A to J 150 m
A to H 50 m
S to J 250 m
S to H 350 m
J to H 350 m
Numbers of computers in each Buildings
S 130
J 80
A 160
H 50

Question. Suggest the most suitable place (i.e. building) to house the server of this school.
(A) Building S
(B) Building J
(C) Building A
(D) Building H

Answer : C

Question. What type of topology is best suited for above network?
(A) Star topology
(B) Bus topology
(C) Ring topology
(D) Mesh topology

Answer : A

Question. Which one of the following devices will you suggestfor connecting all the computers with in each of their buildings?
(A) Switch/Hub
(B) Modem
(C) Telephone
(D) Repeater

Answer : A

Question. The company wants internet acessibility in all the blocks. The suitable and cost-effective technology for that would be:
(A) Satellite
(B) Lease line
(C) Telephone line
(D) Broadband

Answer : D

Question. The school is planning to link its head office situated in New Delhi with the offices in hilly areas. Suggest a way to connect it economically:
(A) Micro waves
(B) Coaxial cable
(C) Fibre optic
(D) Radio waves

Answer : D
 

ABC is professional consultancy company. The company is planning to set up their new offices in India with its hub at Bengaluru. As a network adviser, you have to understand their requirements and suggest them the best available solutions. Their queries are mentioned as (i) to (v) below: Physical Location of the blocks of ABC.
Human Resource Conference Finance
Block to Block Distances (int Mtr)

Question. Which type of topology is best suited for above network?
(A) Bus topology
(B) Star topology
(C) Ring topology
(D) Mesh topology

Answer : B

Question. What will be the most appropriate block, where ABC should plan to install their server?
(A) Human resource
(B) Finance
(C) Conference
(D) Any of these

Answer : B

Question. What will be the best possible connectivity out of the following you will suggest to connect the new setup of offices in Chennai with its London based office.
(A) Satellite Link
(B) Infrared
(C) Ethernet Cable
(D) Wi fi

Answer : A

Question The company wants internet accessibility in all the blocks. The suitable and cost-effective technology for that would be:
(A) Satellite
(B) Lease line
(C) Telephone line
(D) Broadband

Answer : D

Question. Which of the following device will be suggested by you to connect each computer in each of the buildings?
(A) Switch
(B) Modem
(C) Gateway
(D) Hub

Answer : A
 

MyPace University is setting up its academic blocks at Naya Raipur and is planning to set up a network.
The University has 3 academic blocks and one Human Resource Center.
Centre to centre distance between of various blocks/centres is as follows :
Law Block to Business Block 40 m
Law Block to Technology Block 80 m
Law Block to HR Centre 105 m
Business Block to Technology Block 30 m
Business Block to HR Centre 35 m
Technology Block to HR Centre 15 m
Number of Computers in each of the blocks/centers are as follows:
Law Block 15
Technology Blocks 40
HR Centre 115
Business Block 25

Question. Which device you will suggest to be placed/installed in each of these blocks/centre to efficiently connect all the computers with in these blocks/centre ?
(A) Switch
(B) Hub
(C) Router
(D) Repeater

Answer : A

Question. Which is the most suitable place (i.e. block/centre) to install the server of this university
(A) Law Block
(B) Business block
(C) Technology block
(D) HR Center

Answer : D

Question. 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 the following will be formed?
(A) LAN
(B) MAN
(C) WAN
(D) None of these

Answer : C

Question. The company wants internet accessibility in all the blocks. The suitable and cost-effective technology for that would be:
(A) Satellite
(B) Lease line
(C) Telephone line
(D) Broadband

Answer : D

Question. Which of the following two buildings needs Repeater for efficient transmission?
(A) Law Block to Business Block
(B) Law Block to Technology Block
(C) Business Block to Technology Block
(D) Technology Block to HR Centre

Answer : B