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Generate QuizTechnology – Fill in the Blank – GK Questions
Free practice for SSC, UPSC, Banking & Railway exams. No login required.
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.
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.
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).
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.
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.
The technique of hiding private IP addresses behind a single public IP is called ________.
- NAT
- AePS
- IP
- SLAAC
Answer: NAT
NAT (Network Address Translation) allows multiple devices on a private network to share a single public IP address when accessing the internet. Conserves IPv4 addresses and adds a layer of security by hiding internal network structure. Implemented in routers and firewalls.
The platform that provides online courses from school to university level under Ministry of Education is called ________.
- SWAYAM
- TDMA
- O(1)
- QR
Answer: SWAYAM
SWAYAM (Study Webs of Active-Learning for Young Aspiring Minds) is a MOOC platform offering free online courses from 9th grade to post-graduation by reputed Indian institutions. Credits earned can be transferred to academic records. Part of Digital India's education transformation initiatives.
The ethical framework addressing fairness, accountability, and transparency in AI systems is called ________ AI.
- Model
- FATF / Financial Action Task Force
- Make
- Responsible
Answer: Responsible
Responsible AI encompasses principles and practices to ensure AI systems are developed and deployed ethically: fairness (avoiding bias), accountability (clear responsibility), transparency (explainable decisions), privacy protection, and human oversight. India's AI strategy emphasizes Responsible AI for inclusive growth.
A type of malware that replicates itself to spread to other computers without user intervention is called a ________.
- Indigenization / Self-Reliance
- Worm
- Artificial Intelligence / GPAI
- Stratified
Answer: Worm
Computer Worm is standalone malware that self-replicates to spread across networks, exploiting vulnerabilities without requiring user action (unlike viruses that need host files). Worms can consume bandwidth, install backdoors, or deliver payloads. Prevention: network segmentation, patching, firewall rules.
The technology that uses algorithms to make predictions or decisions without being explicitly programmed is called ________ Learning.
- Multi-Task
- Machine
- DNA / Molecular
- Access Control
Answer: Machine
Machine Learning enables systems to learn patterns from data and improve performance on tasks without explicit programming. Types: Supervised (labeled data), Unsupervised (pattern discovery), Reinforcement (reward-based learning). Applications: recommendation engines, fraud detection, predictive maintenance.
The system that enables cash withdrawals and balance inquiries at micro-ATMs using Aadhaar authentication is called ________.
- NAT
- AePS
- SMTP
- TDMA
Answer: AePS
AePS (Aadhaar Enabled Payment System) allows bank customers to use Aadhaar number and fingerprint/iris for basic banking transactions at Micro-ATMs through Business Correspondents. Operated by NPCI, it promotes financial inclusion in rural areas without need for cards, phones, or internet.
The permanent memory in a computer that retains data even when power is off is called ________.
- ROM
- SSH
- IN-SPACe
- AePS
Answer: ROM
ROM (Read-Only Memory) is non-volatile memory that stores firmware like BIOS/UEFI. Data is written during manufacturing and generally cannot be modified by users. Unlike RAM which is volatile, ROM retains critical boot instructions even after power loss. Variants include PROM, EPROM, EEPROM.
The measure of how long a qubit maintains its quantum state before decoherence is called ________ Time.
- Accountability
- Coherence
- Permissioned Distributed / Hybrid
- Circular
Answer: Coherence
Coherence time (T1 for energy relaxation, T2 for phase decoherence) determines how many quantum operations can be performed before errors dominate. Longer coherence enables more complex algorithms. Improved via better materials, shielding, and error correction. Critical metric for comparing quantum hardware platforms.
The feedback control system that uses sensor data to correct robot motion errors is called ________ Control.
- Ethical / CEH
- du
- Uncertainty / Observer
- Closed-loop / Feedback
Answer: Closed-loop / Feedback
Closed-loop control continuously compares desired vs actual state (via sensors) and adjusts actuators to minimize error. Contrasts with open-loop (no feedback). Essential for precision tasks: assembly, welding, autonomous navigation. PID controllers are common implementation. Critical for robotics control theory questions.
The technique of optimizing part design to minimize material usage while maintaining strength is called ________ Optimization.
- LCH Prachand
- Permissioned Distributed / Hybrid
- Frequency
- Topology
Answer: Topology
Topology optimization uses algorithms to distribute material optimally within design constraints (loads, boundaries), creating lightweight, efficient structures often with organic shapes. Enabled by additive manufacturing which can produce complex geometries impossible with subtractive methods. Critical for aerospace, automotive, and biomedical applications.
The process of converting real-world assets into digital tokens on a blockchain is called ________.
- OECD / UNESCO
- Tree / Acyclic Graph
- Tokenization
- DigiLocker
Answer: Tokenization
Tokenization represents ownership of physical/digital assets (real estate, art, commodities) as blockchain tokens, enabling fractional ownership, instant settlement, and global liquidity. Requires legal frameworks and oracle services for real-world data. Pilots in India for land records, supply chain, and financial assets. Important for fintech innovation questions.
The phenomenon where measuring a quantum system disturbs its state is called the ________ Principle.
- Purpose
- Thought
- Common
- Uncertainty / Observer
Answer: Uncertainty / Observer
Heisenberg's Uncertainty Principle states that certain pairs of properties (position/momentum) cannot be simultaneously measured with arbitrary precision. In quantum computing, measurement collapses superposition to a definite state, limiting information extraction. Critical for understanding quantum measurement and algorithm design.
The technology that enables robots to perceive and understand their environment using cameras and AI is called Computer ________.
- Meghdoot / mKisan
- BharatKosh / e-Payments
- SIDBI / Startup India
- Vision
Answer: Vision
Computer Vision enables robots to interpret visual data: object recognition, depth estimation, navigation, and manipulation. Combines deep learning (CNNs), sensor fusion, and real-time processing. Critical for autonomous vehicles, warehouse robots, and service robots. Key enabler of intelligent automation systems.
The 3D printing process that cures liquid resin using UV light is called Stereolithography or ________.
- SLA
- O-RAN
- TDMA
- AePS
Answer: SLA
SLA (Stereolithography) uses a UV laser to selectively cure photopolymer resin layer by layer, producing high-resolution parts with smooth surfaces. Used for prototypes, dental models, and jewelry. Post-curing and support removal required. One of the earliest additive manufacturing technologies, foundational for resin-based printing.
The consensus mechanism used by Bitcoin where miners solve cryptographic puzzles is called Proof of ________.
- Work
- Serverless
- Principle, Privilege
- CARTOSAT / EOS
Answer: Work
Proof of Work (PoW) requires miners to expend computational power to solve hash puzzles, securing the network and preventing double-spending. Energy-intensive; alternatives include Proof of Stake (PoW's successor in Ethereum), Proof of Authority, and Byzantine Fault Tolerance variants. Critical for understanding blockchain security and sustainability.