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Answer: True
Direct Air Capture (DAC) uses chemical processes to extract CO2 from ambient air for storage or utilization. Complements emission reduction for net-zero goals. India is developing DAC roadmap under National Carbon Capture Program. Critical for climate tech questions.
Answer: Account Aggregator
Account Aggregator framework enables consent-based financial data sharing between institutions. Users control data flow via AA apps. Part of India Stack's layered DPI: identity (Aadhaar), payments (UPI), data sharing (AA), documents (DigiLocker). Critical for digital governance questions.
Answer: MQTT
MQTT (Message Queuing Telemetry Transport) is a publish-subscribe protocol optimized for low-bandwidth, high-latency IoT networks. Uses minimal overhead, supports QoS levels, and works over TCP/IP. Critical for IoT architecture and industrial automation questions.
Answer: True
NLP combines linguistics and AI for tasks: translation, sentiment analysis, chatbots, summarization. Transformer models (BERT, GPT) revolutionized NLP with attention mechanisms. Critical for AI applications in governance, customer service, and accessibility questions.
Answer: Both A and B
Both GANs (Generative Adversarial Networks) and Diffusion Models (DALL-E, Stable Diffusion) generate images from text. GANs use generator-discriminator competition; diffusion models iteratively denoise random noise. Critical for understanding generative AI applications in creative industries and exams.
Answer: Ka-band
Ka-band (26.5-40 GHz) offers high bandwidth for satellite broadband, earth observation data downlink, and inter-satellite links. Challenges: rain attenuation, requiring adaptive coding. Critical for satellite communication and space infrastructure questions.
Answer: True
Green hydrogen (electrolysis using renewables) stores energy chemically for days/weeks, convertible to electricity via fuel cells or turbines. Complements batteries (short-duration) for seasonal storage. India's National Green Hydrogen Mission targets this application.
Answer: Vibration-to-Electricity Conversion
Piezoelectrics generate voltage when mechanically stressed, enabling energy harvesting from vibrations (machinery, footsteps, vehicles). Powers wireless sensors, wearables. India researches at IITs and DRDO. Critical for IoT and sustainable energy questions.
Answer: Fab / Foundry
Semiconductor fab (fabrication plant) is ultra-clean facility with photolithography, etching, deposition tools for chip manufacturing. Foundries (TSMC, GlobalFoundries) manufacture for fabless designers. India's semiconductor mission aims to establish domestic fabs.
Answer: True
CubeSats (10x10x10 cm units) standardize small satellite design, reducing cost/time for development and launch. Enable: technology demos, earth observation, IoT connectivity. India promotes CubeSats via ISRO and academic programs. Critical for democratizing space access questions.
Answer: Levelized Cost of Storage
LCOS = (Total Lifetime Cost) / (Total Energy Delivered). Enables apples-to-apples comparison of storage technologies considering CAPEX, OPEX, efficiency, cycle life, and degradation. Critical for energy planning and investment decisions in policy exams.
Answer: Self-Healing
Self-healing materials incorporate microcapsules, vascular networks, or reversible bonds to autonomously repair cracks/damage. Applications: coatings, composites, electronics. India researches at IITs and CSIR labs. Critical for durability and maintenance reduction questions.
Answer: Silicon Carbide
SiC offers: wide bandgap (high breakdown voltage), high thermal conductivity, and high-temperature operation vs silicon. Used in EV inverters, renewable inverters, industrial drives. India's semiconductor mission includes SiC/GaN compound semiconductors.
Answer: True
Red Teaming conducts adversarial simulations (physical, cyber, social) to identify gaps in detection, response, and resilience. Distinct from pentesting (vulnerability-focused). Critical for mature security programs and incident readiness questions.
Answer: Precision Agriculture
Satellite remote sensing (multispectral, SAR) monitors vegetation indices, soil moisture, and crop stress for yield prediction, input optimization, and insurance assessment. Integrated with AI/ML for actionable insights. Critical for AgriTech and food security questions.
Answer: Second
Second-life batteries (retired EV packs at 70-80% capacity) are repurposed for stationary storage (solar backup, grid services), extending value and reducing waste. Requires testing, repackaging, and BMS adaptation. Critical for circular economy and sustainability questions.
Answer: All of these
CNTs offer: high aspect ratio (strength transfer), electrical/thermal conductivity, and chemical stability. Used in aerospace composites, electronics, energy storage. India researches CNT applications at IITs and DRDO. Critical for advanced materials and manufacturing questions.
Answer: Fuzz Testing
Fuzzing automates input of random/malformed data to discover crashes, memory leaks, and vulnerabilities. Effective for finding zero-days in parsers, protocols, and APIs. Tools: AFL, libFuzzer. Critical for secure software development lifecycle questions.
Answer: Navigation Satellite
GNSS (Global Navigation Satellite System) includes GPS (USA), GLONASS (Russia), Galileo (EU), BeiDou (China), and NavIC (India). Provides positioning, navigation, timing for civil/military applications. Critical for geospatial technology and strategic autonomy questions.
Answer: All of these
Battery degradation accelerates with: high temperature (accelerates side reactions), fast charging (lithium plating), deep discharge (electrode stress). Battery management systems optimize these factors. Critical for EV longevity and storage economics questions.