In context of the internet, consider the following – Column – I Column – II…
2022
In context of the internet, consider the following –
Column – I | Column – II |
|---|---|
(P) DUCKDUCKGO | 1. Browser |
(Q) FIREFOX | 2. Video conferencing |
(R) SKYPE | 3. Search engine |
Which of the following is the correct match of Column – I and Column – II?
Answer: C. P-3, Q-1, R-2 — Concept. Internet software is classified by the job it performs, not by the company that publishes it. A search engine is a service that crawls and indexes…
- A.
P-1, Q-3, R-2
- B.
P-2, Q-1, R-3
- C.
P-3, Q-1, R-2
- D.
P-3, Q-2, R-1
Attempted by 380 students.
Show answer & explanation
Correct answer: C
Concept. Internet software is classified by the job it performs, not by the company that publishes it. A search engine is a service that crawls and indexes web pages and returns ranked results for a text query. A web browser is client software that requests a web resource over HTTP/HTTPS and renders it for the user. A video-conferencing application is a real-time VoIP client that carries live audio and video between two or more participants.
Discriminator. A search engine finds content, a browser displays content, and a video-conferencing tool transmits live audio and video.
Application.
(P) DUCKDUCKGO is a privacy-focused web search service: it indexes web pages and returns ranked results for a query without building a search profile of the user. Its job is finding content, so its category is Search engine, listed as item 3.
(Q) FIREFOX is Mozilla's open-source web browser built on the Gecko engine: it requests pages over HTTP/HTTPS and renders HTML, CSS and JavaScript on screen. Its job is displaying content, so its category is Browser, listed as item 1.
(R) SKYPE is a VoIP application used for live audio and video calls and group meetings. Its job is transmitting live audio and video, so its category is Video conferencing, listed as item 2.
Cross-check. Each of the three categories is used exactly once, so the one-to-one pairing is forced:
Column – I | Job it performs | Column – II |
|---|---|---|
(P) DUCKDUCKGO | Finds content: indexes and ranks web pages | 3. Search engine |
(Q) FIREFOX | Displays content: renders web pages | 1. Browser |
(R) SKYPE | Transmits live audio and video | 2. Video conferencing |
Note. DUCKDUCKGO also publishes a privacy browser app, but Column – II offers a single Browser slot and FIREFOX is a browser and nothing else, so DUCKDUCKGO takes the Search engine category it is universally known for.
Hence the correct match is P-3, Q-1, R-2.