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Generate QuizTechnology – GK Questions
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Which of the following is a volatile memory type?
- ROM
- EEPROM
- RAM
- Flash Memory
Answer: RAM
RAM (Random Access Memory) is volatile memory that loses stored data when power is turned off. Used for temporary storage of actively running programs and data. Non-volatile memories (ROM, EEPROM, Flash) retain data without power, used for firmware, storage, and configuration settings.
NEFT transactions are settled in real-time individually like RTGS.
- True
- False
Answer: False
NEFT (National Electronic Funds Transfer) settles transactions in half-hourly batches, not real-time. RTGS (Real-Time Gross Settlement) processes high-value transactions individually in real-time. Both operate 24x7 since 2020. UPI is the only system offering instant peer-to-peer and merchant payments 24x7.
What does 'WWW' stand for in web addresses?
- World Wide Web
- World Web Wide
- Wide World Web
- Web World Wide
Answer: World Wide Web
WWW (World Wide Web) is an information system where documents and resources are accessed via internet using URLs and hyperlinks. Invented by Tim Berners-Lee in 1989. Web pages are written in HTML, transmitted via HTTP/HTTPS, and displayed by web browsers. Web is a service running on the internet infrastructure.
A security policy that grants users only the minimum access necessary to perform their job is called ________ of Least ________.
- Red Team / Penetration
- Principle, Privilege
- Code
- PMP / PRINCE2
Answer: Principle, Privilege
Principle of Least Privilege (PoLP) restricts user/system access rights to only what is essential for their role, minimizing damage from accidents or attacks. Implemented via role-based access control (RBAC), regular access reviews, and just-in-time permissions. Core concept in secure system design.
Which ISRO satellite provides direct-to-home (DTH) television services in India?
- CARTOSAT
- INSAT/GSAT
- IRNSS
- EOS
Answer: INSAT/GSAT
INSAT and GSAT series communication satellites provide DTH broadcasting, telecommunication, and weather monitoring services. INSAT-4A, GSAT-15, GSAT-24 carry transponders leased to DTH providers like Dish TV, Tata Play. These geostationary satellites ensure continuous coverage over Indian subcontinent.
Big Data is characterized solely by its large volume.
- True
- False
Answer: False
Big Data is defined by 5 Vs: Volume (scale), Velocity (speed of generation), Variety (structured/unstructured data), Veracity (uncertainty/quality), and Value (actionable insights). Handling Big Data requires distributed computing (Hadoop, Spark), advanced analytics, and scalable storage solutions.
Which technology enables location tracking of mobile devices using satellite signals?
- Wi-Fi Positioning
- Cell Tower Triangulation
- GPS
- Bluetooth Beacons
Answer: GPS
GPS (Global Positioning System) uses signals from 24+ satellites to determine precise geographic location (latitude, longitude, altitude) anywhere on Earth. Integrated into smartphones for navigation, ride-hailing, fitness tracking. Works outdoors; assisted by Wi-Fi/cell towers indoors for faster acquisition.
The device that converts digital signals from computer to analog for telephone line transmission is called ________.
- Modem
- Middle
- Serverless
- Transparency
Answer: Modem
Modem (Modulator-Demodulator) converts digital data from computers to analog signals for transmission over telephone lines (modulation) and vice versa at receiving end (demodulation). Though largely replaced by broadband, modems established foundational concepts for digital communication over analog infrastructure.
Which data structure allows insertion and deletion from both ends?
- Stack
- Queue
- Deque
- Array
Answer: Deque
Deque (Double-Ended Queue) allows insertion and deletion at both front and rear ends, combining features of stack (LIFO) and queue (FIFO). Implemented using arrays or linked lists. Used in palindrome checking, sliding window problems, and browser history management. Time complexity: O(1) for end operations.
The Digital India initiative was launched in the year 2015.
- True
- False
Answer: True
Digital India was officially launched on July 1, 2015, with vision to transform India into a digitally empowered society and knowledge economy. Built on three pillars: digital infrastructure as utility, governance & services on demand, and digital empowerment of citizens. Encompasses multiple sub-initiatives.
Which security measure converts readable data into unreadable format to protect confidentiality?
- Hashing
- Encryption
- Compression
- Encoding
Answer: Encryption
Encryption transforms plaintext into ciphertext using algorithms and keys, ensuring only authorized parties with decryption key can read the data. Protects data at rest (stored) and in transit (transmitted). Hashing is one-way for integrity; encoding (Base64) is not security; compression reduces size.
The AI approach where systems learn by trial and error using rewards and penalties is called ________ Learning.
- Quantum
- Reinforcement
- Microservices / RESTful
- Inversion
Answer: Reinforcement
Reinforcement Learning (RL) trains agents to make sequential decisions by interacting with an environment and receiving rewards/penalties. Used in robotics, game playing (AlphaGo), autonomous vehicles, and resource optimization. Differs from supervised learning (labeled data) and unsupervised learning (pattern discovery).
Which NPCI product enables interoperable cash withdrawals at any bank's ATM using any bank's card?
- NFS
- UPI
- IMPS
- RuPay
Answer: NFS
NFS (National Financial Switch) is NPCI's largest ATM network in India, enabling interoperability so customers can withdraw cash from any bank's ATM using their debit card. Connects over 2.5 lakh ATMs. RuPay is card network, UPI/IMPS are fund transfer systems. NFS handles ATM transaction routing and settlement.
The binary number system uses only two digits: 0 and 1.
- True
- False
Answer: True
Binary (base-2) system uses only digits 0 and 1, corresponding to off/on states in digital circuits. All computer data and instructions are ultimately represented in binary. Decimal (base-10), hexadecimal (base-16) are used for human readability but converted to binary for processing.
Which layer of the OSI model is responsible for logical addressing and routing?
- Physical
- Data Link
- Network
- Transport
Answer: Network
Network Layer (Layer 3) handles logical addressing (IP addresses), routing packets between networks, and path determination. Routers operate at this layer. Data Link (Layer 2) handles MAC addresses and local delivery; Transport (Layer 4) manages end-to-end connections and reliability.
A security practice of regularly updating software to fix vulnerabilities is called ________ management.
- Patch
- Reinforcement / RLHF
- Microservices
- do-while
Answer: Patch
Patch Management is the process of acquiring, testing, and installing code changes (patches) to fix security vulnerabilities, bugs, or improve functionality. Critical for protecting systems from exploits targeting known flaws. Automated tools and scheduled maintenance windows help streamline patch deployment.
What is the name of India's first indigenous aircraft carrier that uses indigenous navigation systems?
- INS Vikrant
- INS Vikramaditya
- INS Chennai
- INS Kolkata
Answer: INS Vikrant
INS Vikrant (IAC-1) is India's first indigenously designed and built aircraft carrier, commissioned in 2022. It incorporates Indian-developed systems including navigation, combat management, and communication. Represents a milestone in India's defense self-reliance (Atmanirbhar Bharat) and technological capability.
BharatNet project aims to connect all gram panchayats with optical fiber for high-speed internet.
- True
- False
Answer: True
BharatNet (formerly NOFN) is one of the world's largest rural connectivity projects, aiming to provide minimum 100 Mbps bandwidth to all 2.5 lakh gram panchayats via optical fiber. Enables delivery of e-governance, tele-education, telemedicine, and digital services to rural India.
Which generation of mobile technology introduced mobile internet and email capabilities?
- 1G
- 2G
- 3G
- 4G
Answer: 2G
2G (specifically GPRS/EDGE enhancements) introduced packet-switched data enabling basic mobile internet, email, and MMS. 1G was analog voice only. 3G brought faster data for video calls and web browsing. 4G enabled HD video streaming and app ecosystems. Each generation built upon previous capabilities.
The convergence of physical, digital, and biological spheres characterizes the ________ Industrial Revolution.
- Hybrid
- Modernisation Programme / DILRMP
- Fourth
- Gaganyaan
Answer: Fourth
The Fourth Industrial Revolution (Industry 4.0) blends technologies like AI, IoT, robotics, 3D printing, and biotechnology, blurring lines between physical, digital, and biological domains. India's initiatives like SAMARTH Udyog and National Strategy on AI aim to harness this transformation for inclusive growth.