15 extra multiple-choice questions for Introduction to Computer Networks (12th Standard Computer Applications, Samacheer Kalvi), beyond the ones printed in the textbook — each with the correct option highlighted and a clear, worked explanation. Free to read in English and Tamil.
Q1
Who co-designed the TCP/IP protocols and the Internet architecture alongside Vint Cerf?
- A. Tim Berners-Lee
- B. Robert E. KahnCorrect
- C. Paul V. Mockapetris
- D. Charles Babbage
Explanation. Vint Cerf designed the TCP/IP protocols and the Internet architecture alongside his co-designer Robert E. Kahn.
Q2
In computer networks, what is a connected computer or device specifically referred to as?
- A. Server
- B. Link
- C. Hub
- D. NodeCorrect
Explanation. The textbook states that a computer connected to a network is called a node.
Q3
What is the primary purpose of computer networks as defined in the textbook?
- A. Creating web applications
- B. Designing hardware devices
- C. Sharing resourcesCorrect
- D. Programming computers
Explanation. A computer network is defined as a set of computers connected together to share resources.
Q4
According to the evolution timeline of the Internet, in which year was ARPANET established?
- A. 1962
- B. 1965
- C. 1969Correct
- D. 1972
Explanation. According to the evolution of the Internet timeline in the textbook, ARPANET was established in the year 1969.
Q5
Which of the following is defined in the textbook as a type of malware or computer worm that replicates on its own?
- A. Hacker
- B. VirusCorrect
- C. Flame war
- D. Cloud storage
Explanation. The textbook defines a virus as a malware threat or computer worm that replicates on its own.
Q6
Which concept was conceived in the year 1945 according to the evolution of the Internet timeline?
- A. Silicon chip
- B. Mosaic
- C. MemexCorrect
- D. Packet switching
Explanation. The evolution of the Internet timeline in the textbook indicates that Memex was conceived in the year 1945.
Q7
What is the term used for the lengthy exchange of angry or abusive messages between users of an online forum?
- A. Cyber war
- B. Flame warsCorrect
- C. Hacking
- D. Social application
Explanation. Flame wars refer to the lengthy exchange of angry or abusive messages between users in an online forum or discussion area.
Q8
According to the textbook's timeline, in which year was the World Wide Web (WWW) created?
- A. 1984
- B. 1989Correct
- C. 1993
- D. 1995
Explanation. The evolution timeline of the Internet specifies that the World Wide Web (WWW) was created in 1989.
Q9
Which of the following is an application of Information and Communication Technology (ICT) for accessing government services and standard transactions?
- A. e-Banking
- B. e-GovernanceCorrect
- C. e-Readers
- D. e-Learning
Explanation. The textbook defines e-Governance as an application of ICT for accessing government services and conducting standard transactions.
Q10
In mobile networks, land areas are distributed as cells. Each cell is served by a base transceiver station or how many cell sites?
- A. One
- B. Two
- C. ThreeCorrect
- D. Four
Explanation. The textbook mentions that in mobile networks, land areas are distributed as cells, generally served by three cell sites.
Q11
In the context of computer networks, what is a shared central computer where software and applications can be stored called?
- A. Node
- B. ServerCorrect
- C. Mobile station
- D. Client
Explanation. The textbook states that software or applications can be stored at a central computer or server to be shared.
Q12
What are the three common uses of computer networks identified in the textbook?
- A. Hacking, Viruses, and Security
- B. Communication, Resource sharing, and Information sharingCorrect
- C. Social web, Mobile technology, and Cloud storage
- D. Browsing, e-Banking, and e-Governance
Explanation. The textbook lists the three common uses of computer networks as Communication, Resource sharing, and Information sharing.
Q13
According to the evolution timeline in the textbook, in which year was the concept of the silicon chip developed?
- A. 1948
- B. 1958Correct
- C. 1962
- D. 1964
Explanation. According to the timeline of the Internet's evolution, the silicon chip was developed in 1958.
Q14
To avoid duplicate registrations and maintain secrecy, what does a social network generally require from its users?
- A. Membership fees
- B. Content contribution
- C. Frequent visits
- D. Registration of names and accountsCorrect
Explanation. Social networks generally require users to register names and accounts to avoid duplicate entities and maintain secrecy.
Q15
In a computer network, what represents the points where data originates and terminates?
- A. Host and Gateway
- B. Source and destinationCorrect
- C. Router and Switch
- D. Channel and Medium
Explanation. The textbook explains that data originates and terminates at nodes, which are referred to as the source and destination.
About these Introduction to Computer Networks questions
These are the Additional multiple-choice questions for Introduction to Computer Networks from the Tamil Nadu State Board (Samacheer Kalvi) 12th Standard Computer Applications syllabus. Each question shows the correct option and an original, step-by-step explanation so you understand the method, not just the answer. Use the answer key above to jump to any question, then take the practice test to check yourself under exam-like conditions.
Frequently asked questions
How many MCQs are there in Introduction to Computer Networks?
This chapter has 15 book-back multiple-choice questions, each with the correct answer and a step-by-step explanation.
Are these 12th Standard Computer Applications MCQs free to practise online?
Yes. Every question, answer and explanation here is free, and you can also take them as a timed practice test.
Where can I find the Introduction to Computer Networks book-back answers?
The correct option for each question is highlighted on this page with a worked explanation, plus a quick answer-key summary at the top.
