Match List - I with List - II. List - I — ICT Term List - II — Definition (A)…
2024
Match List - I with List - II.
List - I — ICT Term | List - II — Definition |
|---|---|
(A) VoIP | (I) A tool for real-time communication between two or more people sending text messages to their devices |
(B) Instant Messaging (IM) | (II) A system of interlinked hypertext documents accessed via the Internet |
(C) VPN | (III) A technology that allows you to talk with other people using the internet |
(D) WWW | (IV) A network that protects data by encrypting network traffic |
Choose the correct answer from the options given below :
Answer: D. (A)-(III), (B)-(I), (C)-(IV), (D)-(II) — Concept — classify each service by its payload or by its transformation. Every service in a list like this is defined either by the kind of payload it carries…
- A.
(A)-(II), (B)-(I), (C)-(IV), (D)-(III)
- B.
(A)-(IV), (B)-(II), (C)-(III), (D)-(I)
- C.
(A)-(III), (B)-(I), (C)-(II), (D)-(IV)
- D.
(A)-(III), (B)-(I), (C)-(IV), (D)-(II)
Show answer & explanation
Correct answer: D
Concept — classify each service by its payload or by its transformation. Every service in a list like this is defined either by the kind of payload it carries end to end (spoken audio, typed text, hypertext documents) or by the transformation it applies to traffic that is already in flight (encryption and tunnelling). Fix that one defining property for a term first, then look for the definition that names exactly that property; a definition naming a different payload or a different transformation cannot belong to that term.
Applying the rule to each term:
VoIP expands to Voice over Internet Protocol. Its payload is spoken audio, digitised into packets and carried over IP, so its defining property is conversation carried over the internet — the definition that reads “a technology that allows you to talk with other people using the internet”, entry (III).
Instant Messaging carries typed text between two or more participants with near-zero delay, so its defining property is real-time text delivery to the participants’ devices — entry (I).
VPN expands to Virtual Private Network. It carries no payload of its own; it takes existing traffic and applies a transformation, encrypting it inside a tunnel so that it is unreadable in transit — entry (IV).
WWW expands to World Wide Web. Its payload is hypertext documents linked to one another and retrieved over the Internet, so its defining property is an interlinked document system — entry (II).
Cross-check — one defining property per term, and no property used twice:
Term | Expands to | Defining property | Definition |
|---|---|---|---|
VoIP | Voice over Internet Protocol | Carries spoken audio over IP | (III) |
Instant Messaging (IM) | Instant Messaging | Carries typed text in real time | (I) |
VPN | Virtual Private Network | Encrypts traffic inside a tunnel | (IV) |
WWW | World Wide Web | Serves interlinked hypertext documents | (II) |
Contrast with the near-misses. The Web is not the Internet itself but one service running on top of it, so the interlinked-hypertext definition attaches to WWW and never to a voice or messaging service. A VPN is not a communication service at all — it neither originates nor delivers a conversation, it only protects whatever traffic passes through it, so the encryption definition attaches to VPN alone. Voice and text differ only in payload: audio belongs to VoIP, typed messages to Instant Messaging.
Result. The consistent mapping is (A)-(III), (B)-(I), (C)-(IV), (D)-(II).