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Generate QuizTechnology – GK Questions
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Cache memory is slower than main RAM but faster than CPU registers.
- True
- False
Answer: False
Cache memory is FASTER than main RAM but SLOWER than CPU registers. Speed hierarchy: CPU Registers (fastest) > L1 Cache > L2 Cache > L3 Cache > RAM > SSD > HDD (slowest). Cache stores frequently accessed data to reduce CPU wait time and improve system performance.
Which AI technique is used for generating realistic images, videos, or text by learning data patterns?
- Decision Trees
- Generative Adversarial Networks
- Linear Regression
- K-Means Clustering
Answer: Generative Adversarial Networks
GANs (Generative Adversarial Networks) consist of two neural networks - a generator that creates fake data and a discriminator that evaluates authenticity. They compete to improve output quality. Used in deepfakes, art generation, drug discovery, and data augmentation. Ethical concerns include misinformation.
The maximum transaction limit for UPI payments as per RBI guidelines (2026) is ₹________ for most categories.
- 8000
- 7
- 26.5-40
- 1,00,000
Answer: 1,00,000
As of 2026, the standard UPI transaction limit is ₹1 lakh per transaction for most categories. Some categories like capital market, insurance, and mutual funds have higher limits (₹2-5 lakh). Limits may vary by bank and user risk profile. Always check latest RBI notifications for updates.
IPv6 addresses are 128-bit long, compared to 32-bit for IPv4.
- True
- False
Answer: True
IPv6 uses 128-bit addresses (e.g., 2001:0db8:85a3::8a2e:0370:7334) providing approximately 3.4×10^38 unique addresses, solving IPv4 exhaustion. IPv4 uses 32-bit addresses (e.g., 192.168.1.1) allowing ~4.3 billion addresses. IPv6 also offers improved security and auto-configuration.
Which SQL clause is used to filter groups after aggregation?
- WHERE
- HAVING
- GROUP BY
- ORDER BY
Answer: HAVING
HAVING clause filters results after GROUP BY aggregation, while WHERE filters rows before grouping. Example: SELECT dept, AVG(salary) FROM emp GROUP BY dept HAVING AVG(salary) > 50000. WHERE cannot be used with aggregate functions directly.
A security approach that assumes no user or device is trusted by default, even inside the network, is called ________ Trust.
- Zero
- Domain-Driven Design / DDD
- Ensemble
- Inversion
Answer: Zero
Zero Trust is a cybersecurity framework that requires strict identity verification for every person and device accessing resources on a private network, regardless of location. It follows 'never trust, always verify' principle, using micro-segmentation, least-privilege access, and continuous monitoring.
Which technology enables mobile payments by tapping a smartphone near a payment terminal?
- Bluetooth
- NFC
- Wi-Fi Direct
- Infrared
Answer: NFC
NFC (Near Field Communication) enables contactless payments by allowing two devices to communicate when placed within 4 cm. Used in Google Pay, Apple Pay, and RuPay Contactless. It operates at 13.56 MHz and supports secure element storage for payment credentials.
Linux is a proprietary operating system developed by Microsoft.
- True
- False
Answer: False
Linux is a free and open-source operating system kernel created by Linus Torvalds in 1991. It is not developed by Microsoft. Linux distributions (Ubuntu, Fedora, Debian) are widely used in servers, embedded systems, and increasingly in desktops. Microsoft develops Windows, a proprietary OS.
Which Digital India initiative focuses on transforming government services through electronic delivery?
- e-Kranti
- Make in India
- Skill India
- Start-up India
Answer: e-Kranti
e-Kranti (National e-Governance Plan 2.0) is a pillar of Digital India focusing on electronic delivery of government services across sectors like education, health, agriculture, and justice. It emphasizes integrated services, cloud adoption, and mobile-first approach for citizen convenience.
The technology that creates fully immersive digital environments replacing the real world is called ________ Reality.
- Compressed Air Energy / CAES
- Virtual
- Machine
- Cellular / Biological
Answer: Virtual
Virtual Reality (VR) creates simulated 3D environments that users can interact with using headsets and controllers. Unlike AR which augments reality, VR completely replaces the physical world. Applications include gaming, training simulations, virtual tours, and therapeutic uses.
Gaganyaan is India's first human spaceflight mission planned by ISRO.
- True
- False
Answer: True
Gaganyaan is ISRO's ambitious human spaceflight program aiming to send Indian astronauts (Gagannauts) to low Earth orbit (~400 km) for 3-7 days. The mission uses GSLV Mk III rocket and includes multiple uncrewed test flights before the crewed mission, targeted for 2025-26.
Which encryption method uses a pair of keys (public and private) for secure communication?
- Symmetric Encryption
- Asymmetric Encryption
- Hashing
- Steganography
Answer: Asymmetric Encryption
Asymmetric Encryption (Public-Key Cryptography) uses two mathematically related keys: public key for encryption and private key for decryption. Examples include RSA, ECC, and Diffie-Hellman. It enables secure key exchange and digital signatures, unlike symmetric encryption which uses a single shared key.
Which regulatory approach treats crypto assets based on economic function rather than technology?
- Technology-Neutral Regulation
- Substance-Over-Form
- Risk-Based Supervision
- All of these
Answer: All of these
Modern crypto regulation focuses on economic substance: payment tokens, security tokens, utility tokens regulated by function. Avoids technology lock-in and adapts to innovation. Critical for policy design.
Retail CBDC can coexist with commercial bank deposits without causing significant disintermediation.
- True
- False
Answer: True
CBDC design can include holding limits, tiered remuneration, and intermediation models to preserve bank deposit role. Critical for financial stability while enabling digital payment innovation.
Which Indian authority monitors crypto transactions for suspicious activity reporting?
- RBI
- SEBI
- FIU-IND
- CERT-In
Answer: FIU-IND
Financial Intelligence Unit-India (FIU-IND) receives, analyzes, and disseminates financial intelligence including crypto transactions. VASPs must register and report suspicious activities under PMLA.
The CBDC pilot testing cross-border payments with other central banks is called ________ Pilot.
- Events / Messages
- mBridge / Multi-CBDC
- Index / GCI
- Demand Assigned Multiple / DAMA
Answer: mBridge / Multi-CBDC
Multi-CBDC platforms (mBridge, Project Dunbar) test cross-border settlements using interoperable digital currencies. Aims to reduce cost, time, and intermediaries in international payments.
Which mechanism ensures carbon credits represent real emission reductions?
- Additionality Testing
- Baseline Methodology
- Third-party Verification
- All of these
Answer: All of these
Carbon credit integrity: additionality proves reductions beyond business-as-usual; robust baselines define counterfactual; independent verification ensures accuracy. Critical for market credibility.
The technology that uses AI to optimize electric vehicle charging based on grid conditions is called ________ Charging.
- Transparency
- Smart / V2G
- Diversity
- Vector
Answer: Smart / V2G
Smart charging: AI optimizes EV charging timing based on grid load, renewable availability, electricity prices. V2G enables bidirectional flow for grid services. Critical for sustainable mobility integration.
Which practice reduces cloud computing emissions by scheduling workloads during renewable energy peaks?
- Carbon-Aware Computing
- Green Scheduling
- Both A and B
- Neither
Answer: Both A and B
Carbon-aware computing: schedule batch jobs when grid renewable fraction is highest, use geographic load balancing to low-carbon regions. Critical for sustainable cloud operations.
Voluntary carbon markets require third-party verification to ensure credit quality.
- True
- False
Answer: True
Credible voluntary markets: independent verification of emission reductions, adherence to standards (Verra, Gold Standard), transparent registries. Critical for corporate ESG credibility and climate finance.