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Which platform provides virtual labs for science and engineering education in India?
- SWAYAM
- Virtual Labs
- NPTEL
- e-Yantra
Answer: Virtual Labs
Virtual Labs (by MeitY) provide remote access to simulation-based experiments in physics, chemistry, biology, and engineering. Enables hands-on learning without physical lab infrastructure. Complements SWAYAM/NPTEL courses. Important for digital education infrastructure questions under NEP 2020.
Soil Health Cards provide farmers with crop-specific nutrient recommendations based on soil testing.
- True
- False
Answer: True
Soil Health Card scheme issues cards every 3 years with soil nutrient status and fertilizer recommendations for specific crops. Promotes balanced fertilizer use, reduces input costs, and improves soil health. Integrated with digital platforms for wider reach. Critical for agricultural policy and technology questions.
Which AI application is used for early detection of diabetic retinopathy from retinal scans?
- Natural Language Processing
- Computer Vision
- Speech Recognition
- Robotic Process Automation
Answer: Computer Vision
Computer Vision algorithms analyze retinal images to detect microaneurysms, hemorrhages, and exudates indicative of diabetic retinopathy. Enables scalable screening in primary care settings. Approved AI tools like Aravind Eye Hospital's system improve access to specialist-level diagnosis. Important for AI in healthcare questions.
Which government initiative provides funding and mentorship to early-stage deep tech startups?
- Startup India
- NIDHI-PRAYAS
- Atal Innovation Mission
- All of these
Answer: All of these
Startup India offers tax benefits, funding support, and regulatory easing. NIDHI-PRAYAS (by DST) provides prototyping grants for deep tech. Atal Innovation Mission establishes Atal Tinkering Labs and incubators. Together they foster innovation ecosystem from ideation to scale-up. Important for entrepreneurship questions.
Which technology uses satellite imagery and AI to provide crop health insights to farmers?
- Soil Testing
- Precision Agriculture
- Organic Farming
- Hydroponics
Answer: Precision Agriculture
Precision Agriculture uses GPS, IoT sensors, drones, satellite imagery, and AI analytics to optimize inputs (water, fertilizer, pesticides) based on field variability. Increases yield, reduces costs, and minimizes environmental impact. Promoted under Digital Agriculture Mission and PM-KISAN integration.
The digital platform that enables teleconsultations and health records under Ayushman Bharat is called ________.
Answer: ABHA / Ayushman Bharat Digital Mission
ABDM (Ayushman Bharat Digital Mission) creates digital health ecosystem with ABHA IDs, Health Facility Registry, and consent-based health information exchange. Enables teleconsultations, e-pharmacy, and portable health records. Part of India's digital public infrastructure for healthcare access and quality.
The Agni-P missile is a two-stage solid-fueled ballistic missile with MIRV capability.
- True
- False
Answer: True
Agni-P (Prime) is a new-generation ballistic missile with 1,000-2,000 km range, two solid-propellant stages, canister-launched, and equipped with MIRV (Multiple Independently Targetable Reentry Vehicle) technology. Enhances India's credible minimum deterrence. Critical for defense and strategic studies questions.
Which Indian startup was the first to achieve unicorn status (valuation >$1 billion)?
- Flipkart
- InMobi
- Ola
- Paytm
Answer: InMobi
InMobi (mobile advertising platform) became India's first unicorn in 2011 after raising $200M at $1B+ valuation. Flipkart achieved unicorn status later in 2012. As of 2026, India has 100+ unicorns across fintech, edtech, healthtech, and SaaS. Important for entrepreneurship and economy questions.
Which section of the IT Act 2000 deals with punishment for cyber terrorism?
- Section 66F
- Section 66E
- Section 67
- Section 72
Answer: Section 66F
Section 66F prescribes life imprisonment for cyber terrorism: unauthorized access to computer resources with intent to threaten unity, integrity, security, or sovereignty of India. Reflects seriousness of cyber threats to national security. Important for legal awareness in defense and governance exams.
A stack data structure can be implemented using an array or a linked list.
- True
- False
Answer: True
Stacks can be implemented with arrays (fixed size, O(1) access) or linked lists (dynamic size, O(1) push/pop at head). Choice depends on requirements: arrays are cache-friendly; linked lists avoid overflow. Understanding implementation trade-offs is important for data structure design questions.
Which HTML attribute specifies the character encoding for a web page?
- charset
- encoding
- meta
- content-type
Answer: charset
<meta charset='UTF-8'> in HTML <head> specifies character encoding. UTF-8 supports virtually all languages and symbols. Proper encoding prevents display issues and security vulnerabilities like XSS. Fundamental for internationalization and web security awareness in exams.
The Linux command to display disk usage of files and directories is ________.
Answer: du
du (disk usage) shows space used by files/directories. Common options: du -h (human-readable), du -sh /path (summary). df shows filesystem-level free space. Essential for storage management, identifying large files, and optimizing disk usage in system administration tasks.
Which technology enables bidirectional power flow between electric vehicles and the grid?
- Fast Charging
- Wireless Charging
- Vehicle-to-Grid (V2G)
- Battery Swapping
Answer: Vehicle-to-Grid (V2G)
V2G allows EVs to discharge stored energy back to the grid during peak demand, acting as distributed storage. Supports grid stability, renewable integration, and provides revenue to EV owners. Requires smart chargers and regulatory framework. Emerging topic for energy and transportation questions.
Which operation has O(1) time complexity in a well-implemented hash table?
- Search
- Insert
- Delete
- All of these
Answer: All of these
Hash tables provide average-case O(1) for search, insert, and delete by computing index via hash function. Worst-case O(n) occurs with many collisions. Load factor < 0.75 and good hash functions maintain performance. Understanding complexity trade-offs is essential for algorithm design questions.
The JavaScript event that fires when a web page has fully loaded is ________.
Answer: DOMContentLoaded / load
DOMContentLoaded fires when HTML is parsed (without waiting for styles/images); load fires when all resources (images, CSS) are fully loaded. Choosing appropriate event ensures scripts execute at right time. Critical for web performance and user experience optimization questions.
Which Linux command is used to compress files using gzip?
- zip
- tar
- gzip
- compress
Answer: gzip
gzip compresses individual files using DEFLATE algorithm, producing .gz extension. tar bundles multiple files (often combined with gzip as .tar.gz). zip creates .zip archives compatible across platforms. Understanding compression tools is essential for backup, storage optimization, and file transfer in system administration.
Energy-efficient buildings in India are certified under the GRIHA rating system.
- True
- False
Answer: True
GRIHA (Green Rating for Integrated Habitat Assessment) is India's national rating system for green buildings, developed by TERI and Ministry of New & Renewable Energy. Evaluates energy/water efficiency, waste management, and sustainable materials. LEED is an international alternative. Important for sustainable development questions.
Which provision of the DPDP Act 2023 allows data principals to correct inaccurate personal data?
- Right to Access
- Right to Correction
- Right to Erasure
- Right to Portability
Answer: Right to Correction
DPDP Act grants data principals rights including: access to summary of processed data, correction of inaccurate/incomplete data, erasure when purpose is fulfilled, and grievance redressal. These rights empower individuals and impose obligations on data fiduciaries. Critical for privacy compliance questions.
A graph with no cycles is called a ________.
Answer: Tree / Acyclic Graph
A connected acyclic graph is a Tree; disconnected acyclic graph is a Forest. Cycles are paths that start and end at same node. Detecting cycles is important in dependency resolution, deadlock prevention, and network analysis. Graph theory fundamentals are tested in SSC JE and programming exams.
In Linux, the sudo command allows authorized users to execute commands with superuser privileges.
- True
- False
Answer: True
sudo (superuser do) grants temporary elevated privileges to authorized users as defined in /etc/sudoers. Promotes least-privilege security model by avoiding persistent root login. Users authenticate with their own password. Critical concept for secure system administration in technical exams.