Computer Networks: Class 12 Previous Year Questions

Computer Networks questions asked in CBSE board exams

Repeated questions first. Open the free app to see each question as it appeared in the paper, with its marking scheme.

1. FULLMAN Tech, Bengaluru is a company that deals with software development. They have different divisions HR (Hi), Sales (H2), Production (H3) and Marketing (H4). The layout of the Bengaluru branch is : HR Sales (H1) (H2) Production Marketing (H3) (H4) The mana…
   Board 20245 markslong answerRepeated: 2023,2024
2. XEED Private Ltd., Delhi is a company that deals with educational toys. They have different divisions HR (A1), Sales (A2), Production (A3) and Marketing (A4). The layout of the Delhi branch is : XEED Private Ltd. Delhi Branch HR SALES (A1) (A2) BANGALORE BRANC…
   Board 20234 marksshort answerRepeated: 2023,2024
3. Which of the following is the correct expanded form of DML ? 1 (A) Device Management Language (B) Device Manipulation Language (C) Data Management Language (D) Data Manipulation Language
   Board 20261 markMCQ
4. (a) Explain the role of the following network devices in a network : 2 (I) Modem (II) Gateway OR (b) Differentiate between add-ons and plug-ins in a web browser.
   Board 20262 marksshort answer
5. * 3 P a g e 3. Naveen discarded various types of waste material without realizing that e-waste contains harmful substances that could pollute the environment. He wants to know which of the following will be considered as e-waste ? 1 (A) Plastic Bottle (B) Brok…
   Board 20261 markMCQ
6. In which scenario is a bar chart preferred over a line chart ? 1 (A) To visualise monthly temperature trends over a year. (B) To compare the number of students in different classes. (C) To show stock price movements over time. (D) To analyse trends in website …
   Board 20261 markMCQ
7. Which of the following network topology uses a central cable (backbone) to connect all devices ? 1 (A) Mesh (B) Star (C) Tree (D) Bus
   Board 20261 markMCQ
8. Which of the following is a key feature of a Static Web Page ? 1 (A) Its content updates very frequently. (B) It displays different content to different users. (C) It loads slower than a Dynamic Web Page. (D) It shows the same content unless the code is manual…
   Board 20261 markMCQ
9. Nisha is using an Android app to make a voice call over the internet to her friend in another country. Which protocol is being used in this case ? 1 (A) Chat (B) VoIP (C) Email (D) TV
   Board 20261 markMCQ
10. XYZ Technologies, Hyderabad q- data science 3 AI Projects - ADMIN·)·SALES(), PRODUCTION(3)3 SERVICE()1 layt (): (ADMIN) (SALES) (PRODUCTION) (SERVICE) 90 Page 26 of 32 (b) Ashutosh, who is a manager, has created a database to manage employee records. The datab…
    Board 20255 markslong answer
11. (A)· SQL ROUD·· function (R) : ROUND·· function (string) function 3& i (character values) 3 (numeric values31 90 Page 10 of 32 19. Every web page on the Internet has a unique address. This address is known as : (A) Domain Name (B) Protocol Uniform Resource Loc…
    Board 20252 marksAssertion-Reason
12. 12 1 (Social Networking), 3 (OnlineShoing· browsing histor (targeted advertisement) f·digital footprint·a· cyberbullying (i) (Digital footprints)· (i) (Net etiqettes)f (ii) (Cyberbullying) ·
    Board 20253 marksshort answer
13. (e age) (address) (A) (Domain Name) (B) (Protocol) (C) R (Uniform Resource Locater) (D) q is (Network Topology) 2021(( (A)(A) (R)(A) (R)1 (B) (A) (R) (A) (R) (C) (A)(R) (D) (A) , (R)
    Board 20252 marksshort answer
14. (a) Give any two points of difference between Static web page and Dynamic web page. OR (b) Describe the role of a router in a network. 90 Page 13 of 32
    Board 20252 marksshort answer
15. Which protocol is used while communicating through video calls on the Internet ? (A) Video Over Internet Protocol (B) Voice Over Internet Protocol (C) Internet Protocol (D) Video Audio Over Internet Protocol
    Board 20251 markMCQ
16. Expand URL. Identify the protocol and domain in the following URL : (a) https://epathshala.nic.in/topics.php?len=en OR (b) Write any one advantage and one disadvantage of Star topology.
    Board 20242 marksshort answer
17. What is the primary function of a gateway in a computer network ? Explain briefly.
    Board 20242 marksshort answer
18. (a) Police officials arrested four members of an interstate gang for allegedly duping many people from different states on the pretext of providing them with holiday packages after creating fake websites of Tours and Travels. The cyber criminals sent fraudulen…
    Board 20243 marksshort answer
19. In topology, the devices are arranged in the form of multiple branches in hierarchical manner. (i) (i) Star Tree (ii)Mesh (iv)Bus Ridhima purchased a license for a copy of a software and made additional copies without the permission of the copyright owner. Thi…
    Board 20241 markvery short
20. Assertion (A) : Cyber Bullying can have serious, emotional and psychological effects on victims. Reason (R) : Online Bullying is not a crime while offline bullying is a crime. (i) Both (A) and (R) are true and (R) is the correct explanation for (A). (ii) Both …
    Board 20241 markAssertion-Reason

Practise all 39 Computer Networks questions with answers →

Other Class 12 Informatics Practices (IP) chapters

Frequently asked questions