CBSE Class 12 Computer Science Computer Network MCQs Set B

Question. Which of the following refers to a small, single site network?
(a) DSL
(b) RAM
(c) WAN
(d) PAN

Answer : D

Question. Computer connected to a star topology fails, the entire network will
(a) also fail
(b) work unaffectedly
(c) only server will work
(d) None of the options

Answer : B

Question. In URL, http: //www. arihant. com/index.htm, which component identifies the path of a web page?
(a) http
(b) www. arihant .com
(c) /index.htm
(d) All of the options

Answer : C

Question. Which is the name of the network topology in which there are bi-directional links between each possible node?
(a) Ring
(b) Mesh
(c) Tree
(d) None of the options

Answer : B

Question. Which of the following is developed by Apple Incorporation?
(a) Lynx
(b) Opera
(c) Safari
(d) Mozilla Firefox

Answer : C

Question. ……………… network device is known as an intelligent hub.
(a) Switch
(b) Hub
(c) Router
(d) Gateway

Answer : A

Question. If all devices are connected to a central hub, then topology is called
(a) bus topology
(b) ring topology
(c) star topology
(d) tree topology

Answer : C

Question. Which of the following is a collection of independent computers and other hardware interconnected by communication channels?
(a) Computer
(b) Networking
(c) Sharing
(d) None of the options

Answer : B

Question. Which of the following transmission media has the highest bandwidth?
(a) Co axial cable
(b) Fiber optic cable
(c) Twisted pair cable
(d) None of the options

Answer : B

Question. For handling collisions in wireless networks ______ protocol is used.
(a) CSMA
(b) CSMA/CA
(c) CSMA/CD
(d) CSMD

Answer : B

Question. Each IP packet consists of
(a) Source address
(b) Destination address
(c) Source or Destination address
(d) Source and Destination address

Answer : D

Question. Which of the following is not a network device?
(a) Modem
(b) Hub
(c) Switch
(d) Satellite

Answer : D

Question. Which of the following is not a server side script?
(a) ASP
(b) JSP
(c) PHP
(d) VB Script

Answer : D

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): The microwave transmission is a line of sight transmission.
Reason (R): Microwave signals travel at a higher frequency than radiowaves

Answer : B

Question. Assertion (A): Bus topology is based on a central which acts as a hub.
Reason (R): Bus topology involves a low cost of installation time.

Answer : D

Question. Assertion (A) : A domain name is a unique name assigned to a website.
Reason (R) : A URL is not a domain name.

Answer : A

Question. Assertion (A) : IP addresses are very important for communication.
Reason (R) : It identifies a device on the network.

Answer : A

Question. Assertion (A) : An access point is a device that connects dissimilar networks.
Reason (R) : Access point broadcast wireless signals that Wi fi cards can detect.

Answer : D

Case Based MCQs :

Web server is a special computer system running on HTTP through web pages.The web page is a medium to carry data from one computer system to another. The working of the web server starts from the client or user. The client sends their request through the web browser to the web server. Web server takes this request, processes it and then sends back processed data to the client. The server gathers all of our web page information and sends it to the user, which we see on our computer system in the form of a web page. When the client sends a request for processing to the web server, a domain name and IP address are important to the web server. The domain name and IP address are used to identify the user on a large network.

Question. The ……… translates Internet domain and host names to IP address.
(a) domain name system
(b) routing information protocol
(c) Internet relay chart
(d) network time protocol

Answer : A

Question. What does the web server need to send back information to the user?
(a) Home address
(b) Domain name
(c) IP address
(d) Both (b) and (c)

Answer : D

Question. What is the full form of HTTP?
(a) HyperText Transfer Protocol
(b) HyperText Transfer Procedure
(c) Hyperlink Transfer Protocol
(d) Hyperlink Transfer Procedure

Answer : A

Question. Web servers are
(a) IP addresses
(b) computer systems
(c) web pages of a site
(d) a medium to carry data from one computer to another

Answer : B

Question. Computer that requests the resources or data from another computer is called as ……… .
(a) server
(b) client
(c) Both (a) and (b)
(d) None of the options

Answer : A
 

A company ABC Enterprises has four blocks of buildings as shown:

Computers in each block are networked but blocks are not networked. The company has now decided to connect the blocks also.

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. Suggest the most appropriate topology for the connections between the blocks.
(A) Ring topology
(B) Star topology
(C) Mesh topology
(D) Bus topology

Answer : B

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

Answer : A

Question. Suggest the most appropriate location of the server, to get the best connectivity for maximum number of computers.
(A) BLOCK B2
(B) BLOCK B1
(C) BLOCK B4
(D) BLOCK B3

Answer : B

Question. The company 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