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Red Team exercises simulate real-world attacks to test organizational security posture.
- True
- False
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.
Which application uses satellite data for monitoring crop health and yield prediction?
- Weather Forecasting
- Precision Agriculture
- Disaster Management
- Urban Planning
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.
The process of reusing EV batteries for stationary storage after automotive life is called ________ Life.
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.
Which property enables carbon nanotubes to reinforce composite materials?
- High Aspect Ratio
- Electrical Conductivity
- Thermal Conductivity
- All of these
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.
Which technique involves testing software by providing invalid/unexpected inputs to find crashes?
- Static Analysis
- Fuzz Testing
- Penetration Testing
- Code Review
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.
The technology that enables precise satellite positioning for navigation is called Global ________ System.
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.
Which factor most significantly impacts lithium-ion battery degradation?
- Charging Speed
- Temperature
- Depth of Discharge
- All of these
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.
Metamaterials can exhibit properties not found in nature, like negative refractive index.
- True
- False
Answer: True
Metamaterials are engineered structures with sub-wavelength features enabling exotic properties: negative refraction, invisibility cloaking, superlenses. Applications: antennas, sensors, imaging. India researches at IITs, DRDO. Critical for advanced materials and photonics questions.
Which packaging technology enables 3D stacking of chips for higher performance?
- Wire Bonding
- Flip-Chip
- Through-Silicon Via
- Plastic Encapsulation
Answer: Through-Silicon Via
TSV (Through-Silicon Via) creates vertical electrical connections through silicon dies, enabling 3D chip stacking for higher bandwidth, lower power, and smaller footprint. Critical for advanced packaging in HPC, mobile, and AI chips. India focuses on ATMP capabilities.
The framework that provides standardized methodology for penetration testing is called ________ Testing Execution Standard.
Answer: PTES
PTES (Penetration Testing Execution Standard) defines phases: pre-engagement, intelligence gathering, threat modeling, vulnerability analysis, exploitation, post-exploitation, reporting. Ensures consistent, comprehensive security assessments. Critical for professional cybersecurity practice questions.
Which Indian initiative promotes commercialization of space technologies through startups?
- IN-SPACe
- NSIL
- Both A and B
- Neither
Answer: Both A and B
IN-SPACe authorizes/facilitates private space activities; NSIL (NewSpace India Limited) commercializes ISRO technologies via industry partnerships. Together they enable India's space economy growth. Critical for understanding space sector reforms and entrepreneurship questions.
Vehicle-to-Grid (V2G) technology allows electric vehicles to supply power back to the electrical grid.
- True
- False
Answer: True
V2G enables bidirectional power flow: EVs charge during low demand, discharge during peak, providing grid services (frequency regulation, backup). Requires smart chargers, communication protocols, and regulatory frameworks. Critical for smart grid and energy transition questions.
Which nanomaterial is used in sunscreen for UV protection without white residue?
- Carbon Nanotubes
- Zinc Oxide Nanoparticles
- Gold Nanoparticles
- Quantum Dots
Answer: Zinc Oxide Nanoparticles
Nano-ZnO/TiO2 provide broad-spectrum UV protection while being transparent on skin vs micron-sized particles that leave white cast. Safety: coated nanoparticles minimize skin penetration. India regulates nanomaterials in cosmetics. Critical for nanotech applications and consumer safety questions.
The process of adding impurities to silicon to modify its electrical properties is called ________.
Answer: Doping
Doping introduces controlled impurities (phosphorus for n-type, boron for p-type) to create PN junctions, transistors, and diodes. Foundation of semiconductor device physics. Critical for understanding chip functionality and manufacturing questions.
In-orbit servicing can extend satellite lifespan by refueling or repairing components in space.
- True
- False
Answer: True
In-orbit servicing (robotic arms, refueling, upgrades) extends satellite life, reduces space debris, and enables new business models. ISRO's SPADEX tested docking; global companies (Northrop, Astroscale) develop servicing tech. Critical for space sustainability and economy questions.
Which battery chemistry is dominant in electric vehicles due to high energy density?
- Lead-Acid
- LFP
- NMC
- Sodium-Ion
Answer: NMC
NMC (Lithium Nickel Manganese Cobalt Oxide) offers high energy density for EV range, balanced with cost and safety. LFP (Lithium Iron Phosphate) is safer, cheaper, longer-life but lower energy density. India's ACC PLI supports both. Critical for EV technology questions.
Which material is commonly used as substrate for silicon semiconductor manufacturing?
- Sapphire
- Silicon Wafer
- Glass
- Plastic
Answer: Silicon Wafer
Silicon wafers (single-crystal, polished discs) are foundational substrate for IC fabrication due to: abundance, mature processing, and suitable electronic properties. Compound semiconductors (GaAs, SiC) used for specialized applications. Critical for understanding chip manufacturing basics.
Social engineering attacks manipulate human psychology rather than exploiting technical vulnerabilities.
- True
- False
Answer: True
Social engineering (phishing, pretexting, baiting) exploits human trust, curiosity, or fear to gain access or information. Often more effective than technical exploits. Defense: security awareness training, verification protocols, and least-privilege access. Critical for holistic cybersecurity understanding.
Which satellite constellation provides global broadband internet coverage?
- NavIC
- OneWeb
- GSAT
- CARTOSAT
Answer: OneWeb
OneWeb (partly Indian-owned via Bharti Group) operates LEO satellite constellation for global broadband, especially rural/remote areas. Competes with Starlink. Critical for digital connectivity and space commerce questions. NavIC is navigation; GSAT is communication; CARTOSAT is earth observation.
The technology that stores energy by compressing air in underground caverns is called ________ Storage.
Answer: Compressed Air Energy / CAES
CAES stores energy by compressing air during low demand, releasing through turbines during peak. Adiabatic CAES recovers compression heat for higher efficiency. Suitable for large-scale, long-duration storage. India explores CAES for renewable integration. Critical for grid-scale storage questions.