Every Book Back multiple-choice question from Network Examples and Protocols (12th Standard Computer Applications, Samacheer Kalvi) — each with the correct option highlighted and a clear, worked explanation. Free to read in English and Tamil.
Q1
Which of the following system securely share business's information with suppliers, vendors, partners and customers.
- A. ExtranetCorrect
- B. Intranet
- C. arpanet
- D. arcnet
Explanation. Extranet is a private network extension that uses internet protocols to securely share internal business data with external groups such as vendors, suppliers, and customers.
Q2
Match the following and choose the correct answer:
i. HTTP - The core protocol of the World Wide Web.
ii. FTP - enables a client to send and receive complete files from a server.
iii. SMTP - Provide e-mail services.
iv. DNS - Refer to other host computers by using names rather than numbers.
- A. i, ii, iii, ivCorrect
- B. ii, iii, iv, i
- C. iii, iv, i, ii
- D. iv, iii, ii, i
Explanation. HTTP is the fundamental protocol of the web, FTP facilitates file transfers, SMTP provides electronic mail transmission, and DNS maps human-readable domain names to numeric IP addresses.
Q3
Communication over ------------------is be made up of voice, data, images and text messages.
- A. Social media
- B. mobile networkCorrect
- C. whatsapp
- D. software
Explanation. Mobile or cellular networks divide geographic areas into cells to transmit voice, data, text messages, and images wirelessly to portable devices.
Q4
Wi-Fi stands for---------------------
- A. Wireless FidelityCorrect
- B. wired fidelity
- C. wired optic fibre
- D. wireless optic fibre
Explanation. Wi-Fi stands for Wireless Fidelity and serves as a wireless networking protocol that allows computers and electronic devices to connect to local networks and the internet.
Q5
A TCP/IP network with access restricted to members of an organization
- A. LAN
- B. MAN
- C. WAN
- D. IntranetCorrect
Explanation. An intranet is a restricted enterprise network that uses TCP/IP protocols to securely share corporate database information and resources exclusively among employees.
Q6
RFID stands for --------------
- A. Radio Free identification
- B. real Frequency identity
- C. Radio Frequency indicators
- D. Radio Frequency Identification.Correct
Explanation. RFID stands for Radio Frequency Identification, a wireless technology that uses radio signals to capture and track data from tags attached to objects.
Q7
It guarantees the sending of data is successful and which checks error on operation at OSI layer is--------------
- A. Application layer
- B. Network layer
- C. Transport LayerCorrect
- D. Physical layer
Explanation. The transport layer is the fourth layer in the OSI model, which ensures reliable, end-to-end data delivery and performs error-checking operations.
Q8
Which one of the following will secure data on transmissions
- A. HTTPSCorrect
- B. HTTP
- C. FTP
- D. SMTP
Explanation. HTTPS uses secure socket layers or transport layer security protocols to encrypt communications between a client and a web server, protecting data from interception.
Q9
----------- provides e-mail service
- A. DNS
- B. TCP
- C. FTP
- D. SMTPCorrect
Explanation. Simple Mail Transfer Protocol is a standard application layer protocol used specifically to transmit and deliver email services across computer networks.
Q10
------------- refer to other host computers by using names rather than numbers.
- A. DNSCorrect
- B. TCP
- C. FTP
- D. SMTP
Explanation. Domain Name System translates easily remembered symbolic domain names into machine-readable numerical IP addresses to locate hosts on a network.
About these Network Examples and Protocols questions
These are the Book Back multiple-choice questions for Network Examples and Protocols 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 Network Examples and Protocols?
This chapter has 10 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 Network Examples and Protocols 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.
