Create a custom practice set
Pick category, difficulty, number of questions, and time limit. Start instantly with your own quiz.
Generate QuizTechnology – Fill in the Blank – GK Questions
Free practice for SSC, UPSC, Banking & Railway exams. No login required.
The blockchain consensus mechanism that selects validators based on staked cryptocurrency is called Proof of ________.
- Decentralized
- Thought
- Stake
- SIDBI / Startup India
Answer: Stake
Proof of Stake selects block validators proportional to staked coins, reducing energy consumption vs Proof of Work. Used by Ethereum, Cardano, Solana. Critical for understanding crypto sustainability.
The CBDC feature that allows transactions without internet connectivity is called ________ Mode.
- Offline
- dimensions
- Healthcare Professionals
- WTO / OECD
Answer: Offline
Offline CBDC uses secure hardware (SE, TEE) to enable limited transactions without network. Critical for rural inclusion, disaster resilience, and areas with poor connectivity. Requires careful security design.
The practice of consolidating multiple servers into fewer physical machines using virtualization is called Server ________.
- Lunar / Space
- Hashing
- Horizontal
- Consolidation
Answer: Consolidation
Server consolidation via virtualization reduces hardware, power, cooling requirements. Improves utilization from 10-15% to 60-80%. Critical for data center efficiency and cost reduction.
The phenomenon where satellite signals are weakened by rain is called ________ Attenuation.
- Stake
- LLM / Generation
- Entanglement
- Rain
Answer: Rain
Rain attenuation affects Ka/Ku-band satellite signals, requiring adaptive coding, power control, and ground station diversity for reliable service. Critical for satellite network design and QoS planning.
The document that summarizes an AI system's capabilities, limitations, and ethical considerations is called a ________ Card.
- Combined Gas and Gas (COGAG)
- Digital Personal Data Protection
- Fourth
- Model
Answer: Model
Model Cards provide standardized documentation: intended use, training data characteristics, performance metrics across groups, ethical considerations. Enable informed deployment decisions and accountability.
The consensus mechanism used by Ethereum after The Merge is called Proof of ________.
- Interdisciplinary Cyber Physical Systems / NM-ICPS
- Stake / PoS
- Ransomware
- Closed-loop / Feedback
Answer: Stake / PoS
Ethereum transitioned from Proof of Work to Proof of Stake (The Merge, 2022), reducing energy consumption by ~99.95%. Validators stake ETH to propose/attest blocks. Critical for understanding crypto sustainability.
The technology that uses AI to optimize energy consumption in buildings is called ________ Management System.
- Building Energy / BEMS
- Reinforcement
- Green
- Columnar
Answer: Building Energy / BEMS
BEMS uses IoT sensors, AI analytics, and automation to optimize HVAC, lighting, and equipment operation. Reduces energy waste by 20-40% while maintaining comfort. Critical for green building certifications.
The resource extracted from lunar regolith that can be used for rocket fuel is ________.
- MITRE ATT&CK
- WTO / OECD
- Water Ice / Oxygen
- Behavioral
Answer: Water Ice / Oxygen
Lunar water ice can be electrolyzed into hydrogen and oxygen for rocket propellant. Enables lunar refueling depot for deep space missions. Critical for sustainable space exploration economics.
The cryptographic technique that allows verification of statements without revealing underlying data is called Zero-________ Proofs.
- Village
- Serverless / Athena
- Shor's
- Knowledge
Answer: Knowledge
Zero-Knowledge Proofs enable proving knowledge of a secret without revealing it. Applications: privacy-preserving authentication, confidential transactions, secure voting. Critical for next-gen privacy technologies.
The practice of testing AI systems with diverse datasets to detect bias is called ________ Testing.
- P4 / Programmable
- Indigenization / Self-Reliance
- Blockchain
- Bias / Fairness
Answer: Bias / Fairness
Bias Testing evaluates AI performance across demographic groups to identify disparate impact. Techniques: disaggregated metrics, counterfactual fairness, adversarial debiasing. Critical for equitable AI deployment.
The pilot phase of India's retail CBDC allows transactions via ________ wallets issued by partner banks.
- Stake
- FATF / Financial Action Task Force
- Digital / e₹
- Reversibility / Recoverability
Answer: Digital / e₹
e₹-R pilot involves major banks issuing digital wallets for retail transactions: P2P, P2M, QR payments. Tests usability, scalability, and integration with existing payment systems before full rollout.
The global standard for crypto asset classification and regulation is developed by ________.
- Logging / Audit Trail
- Bias / Fairness
- Partitioning
- FATF / Financial Action Task Force
Answer: FATF / Financial Action Task Force
FATF provides international standards for virtual assets: definition of VASPs, Travel Rule, risk-based supervision. Countries implement through domestic laws. Critical for cross-border crypto compliance.
The technology underlying most cryptocurrencies that enables decentralized consensus is called ________.
- Serverless
- Water Ice / Oxygen
- Blockchain
- dimensions
Answer: Blockchain
Blockchain is distributed ledger using cryptographic hashing and consensus mechanisms (PoW, PoS) for tamper-resistant record-keeping. Foundation for Bitcoin, Ethereum, and many CBDC prototypes.
The Indian tax provision that imposes 30% tax on income from virtual digital assets is Section ________ of Income Tax Act.
- 800-207
- 1,00,000
- 194S
- 115BBH
Answer: 115BBH
Section 115BBH (introduced FY 2022-23) taxes crypto income at 30% plus cess, with 1% TDS on transactions. No loss offset allowed. Critical for crypto taxation compliance questions.
The metric that measures data center energy efficiency is called Power Usage ________.
- Latency
- Effectiveness / PUE
- Digital India / UPI
- ASVS / Application Security Verification Standard
Answer: Effectiveness / PUE
PUE = Total Facility Energy / IT Equipment Energy. Ideal PUE is 1.0; modern data centers achieve 1.1-1.3. Critical for measuring and improving data center sustainability.
The mechanism that allows countries to trade carbon credits for emission reductions is called ________ Trading.
- Water Ice / Oxygen
- Carbon / Emissions
- Identity
- Quantum
Answer: Carbon / Emissions
Carbon trading (cap-and-trade) sets emission limits and allows trading of allowances. India exploring carbon markets under Climate Change Act. Critical for climate policy and finance questions.
The frequency band used for high-bandwidth satellite internet in Ka-band is ________ GHz.
- 115BBH
- 26.5-40
- 4.0
- 7
Answer: 26.5-40
Ka-band (26.5-40 GHz) offers high bandwidth for satellite broadband but susceptible to rain attenuation. Requires adaptive coding and ground station diversity. Critical for satellite communication planning.
The Indian regional navigation satellite system providing positioning services is called ________.
- NavIC
- CERT
- SSH
- SPADEX
Answer: NavIC
NavIC (Navigation with Indian Constellation) has 7 satellites providing positioning accuracy better than 20m over India and 1500 km surrounding area. Alternative to GPS for strategic autonomy.
The quantum phenomenon where particles remain correlated regardless of distance is called ________.
- du
- Entanglement
- Interoperability
- Dynamic
Answer: Entanglement
Quantum entanglement enables correlated states between particles, foundational for quantum teleportation, superdense coding, and quantum computing. Critical for understanding quantum information science.
The measure of how long a qubit maintains quantum state before decoherence is called ________ Time.
- Coherence
- Stratified
- Knowledge
- Kubernetes
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.