Quick Revision

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 38

TreeMap in Java?
Sorted key-value pairs (sorted by key in natural or custom order)
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Strategy pattern allows?
Algorithm family to be defined and interchangeable at runtime
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Which cloud service model gives most control to customer?
IaaS
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Kubernetes kubectl is?
Command-line tool for interacting with Kubernetes clusters
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Which Kubernetes object exposes application externally as LoadBalancer?
LoadBalancer Service
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Helm chart is?
Package of pre-configured Kubernetes resource definitions
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OpenTelemetry provides?
Unified standard for traces, metrics, and logs collection
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RabbitMQ implements which protocol?
AMQP (Advanced Message Queuing Protocol)
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Aadhaar biometric system uses?
10 fingerprints, 2 iris scans, and photograph
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UPI was developed by?
NPCI (National Payments Corporation of India)
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RS-CIT stands for?
Rajasthan State Certificate in Information Technology
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RKCL stands for?
Rajasthan Knowledge Corporation Limited
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e-Mitra kiosks in Rajasthan provide?
Multiple government services at single point to citizens
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DigiLocker is?
Cloud-based document storage for authentic government documents
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CERT-In is under?
Ministry of Electronics and Information Technology (MeitY)
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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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Computer Fundamentals → Memory Units 1

Which Indian institution built PARAM 8000 supercomputer?
C-DAC (Centre for Development of Advanced Computing)
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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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