← Back to Class 12 CS Main Page
Computer Networks Class 12 Computer Science Sample Paper MCQ based on important concepts and exam-oriented topics. These questions help students revise networking concepts, types of networks, network devices, transmission media, protocols, topologies, and other important topics. Regular practice of these MCQs can improve conceptual understanding, accuracy, and confidence for the board examination.
Computer Networks Class 12 Computer Science Sample Paper MCQ
Q. _______ is a protocol used for retrieving emails from a mail server.
a) SMTP
b) FTP
c) POP3
d) PPP
Answer: c) POP3
Q. Which of the following is correct about using a Hub and Switch in a computer network?
a) A hub sends data to all devices in a network, while a switch sends data to the specific device.
b) A hub sends data only to the devices it is connected to, while a switch sends data to all devices in a network.
c) A hub and switch function the same way and can be used interchangeably.
d) A hub and switch are both wireless networking devices.
Answer: a) A hub sends data to all devices in a network, while a switch sends data to the specific device.
Q. Which of the following is used to create the structure of a web page?
a) CSS
b) HTML
c) JavaScript
d) FTP
Answer: b) HTML
Q. Assertion (A): The expression (1, 2, 3, 4).append(5) in Python will modify the original sequence datatype.
Reason (R): The append() method adds an element to the end of a list and modifies the list in place.
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 the correct explanation for A.
c) A is True but R is False.
d) A is False but R is True.
Answer: d) A is False but R is True.
Q. Which protocol is used to transfer files over the Internet?
(A) HTTP
(B) FTP
(C) PPP
(D) HTTPS
Answer: (B) FTP
Q. Which network device is used to connect two networks that use different protocols?
(A) Modem
(B) Gateway
(C) Switch
(D) Repeater
Answer: (B) Gateway
Q. Which switching technique breaks data into smaller packets for transmission, allowing multiple packets to share the same network resources.
Answer: Packet switching
Q. Riya wants to transfer pictures from her mobile phone to her laptop. She uses Bluetooth Technology to connect two devices. Which type of network will be formed in this case?
a. PAN
b. LAN
c. MAN
d. WAN
Answer: a. PAN
Q. Fill in the blank: The modem at the sender’s computer end acts as a ____________.
a. Model
b. Modulator
c. Demodulator
d. Convertor
Answer: b. Modulator
Q. Fill in the blank: In case of _____________ switching, before a communication starts, a dedicated path is identified between the sender and the receiver.
Answer: Circuit
Q. Fill in the blank: ______is a communication methodology designed to deliver both voice and multimedia communications over Internet protocol.
(a) VoIP
(b) SMTP
(c) PPP
(d)HTTP
Answer: (a) VoIP
Disclaimer: We have taken an effort to provide you with the accurate handout of “Computer Science Class 12“. If you feel that there is any error or mistake, please contact me at anuraganand2017@gmail.com. The above CBSE study material present on our websites is for education purpose, not our copyrights. All the above content and Screenshot are taken from Computer Science Class 12 CBSE Textbook, Sample Paper, Old Sample Paper, Board Paper and Support Material which is present in CBSEACADEMIC website, This Textbook and Support Material are legally copyright by Central Board of Secondary Education. We are only providing a medium and helping the students to improve the performances in the examination.
Images and content shown above are the property of individual organizations and are used here for reference purposes only.
For more information, refer to the official CBSE textbooks available at cbseacademic.nic.in