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GK One-Line Question & Answer

15541+ short questions with short answers, covering every category and sub-category on the site — no long articles to scroll through. Good for a fast recap before an exam, or a few minutes of daily practice.

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Computer Fundamentals → Introduction to Computer 39

NavIC is India's?
Regional Navigation Satellite System covering India and surroundings
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Digital India initiative aims to?
Transform India into digital society with e-governance, connectivity, digital literacy
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NASSCOM represents which sector?
IT-BPM (Information Technology and Business Process Management) industry
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CoWIN platform was developed for?
COVID-19 vaccine registration and certificate management
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Facebook was founded by?
Mark Zuckerberg
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AlphaGo defeated world Go champion Lee Sedol in?
2016
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Which programming language is used for data science?
Python (with NumPy, Pandas, Scikit-learn)
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Which SQL statement creates a new database?
CREATE DATABASE
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TRUNCATE vs DELETE: TRUNCATE is?
Faster, removes all rows, cannot use WHERE clause
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HAVING filters?
Groups after aggregation by GROUP BY
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Which data type stores large text in SQL?
TEXT or CLOB
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NoSQL key-value store example is?
Redis
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Which Python data type is immutable?
Tuple
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Python lambda is?
An anonymous function defined in one line
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What does __init__ do in Python class?
Constructor — initializes a new object instance's attributes
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Python f-strings provide?
Inline expression evaluation within strings
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Python enumerate() ?
Returns index-value pairs when iterating over a sequence
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Python zip() function?
Combines multiple iterables element-by-element into tuples
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Which Python module for regular expressions?
re
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Python GIL affects?
Multi-threading — prevents true parallel execution of Python threads in CPython
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Ransomware?
Encrypts files and demands payment for decryption key
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Multi-factor authentication categories are?
Something you know, have, and are (knowledge, possession, inherence)
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Which encryption algorithm is symmetric?
AES
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DMZ in network security is?
Network segment between internet and internal network for public servers
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Social engineering targets?
Human psychology — manipulating people rather than systems
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Defense in depth uses?
Multiple overlapping security layers
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Which component is called the heart of the computer?
Motherboard
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BIOS stands for?
Basic Input Output System
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Which wattage PSU for high-end gaming PC?
650W-850W
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TIM between CPU and cooler?
Fills microscopic gaps to improve heat transfer
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USB Power Delivery (USB-PD) provides up to?
100W (USB-PD 3.0)
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Which HTML tag creates a hyperlink?
<a href>
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Cookie in web technology is?
Small data file stored in browser by website to remember user info
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HTML5 video element is?
<video>
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REST API HTTP DELETE method is used for?
Deleting resources
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Which protocol is connectionless?
UDP (User Datagram Protocol)
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TCP three-way handshake steps are?
SYN, SYN-ACK, ACK
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Windows Registry stores?
OS and application configuration in hierarchical database
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Which Linux command lists directory contents?
ls
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Computer Fundamentals → Computer Security 1

Morris Worm (1988) was notable as?
First worm to spread over internet
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