Data Analysis & Trends Over the Years (RAS Mains – Technology Section)
1. Basic Computer Science, Networking & Types
- Difference Between IP Address and MAC Address (2023)
- Distinguish between Analog and Digital signals. (2018)
2. Telecommunications, Mobile Telephony & Frequency Spectrum
- Distinguish between “Sky wave” and “Space wave” propagation. (2018)
- Draw a schematic diagram showing different wave propagations. (2018)
- Write the frequency range for AM, Television, and Satellite Communication. (2018)
- Communication system block diagram and explanation. (2016 Re Exam)
3. Recent Developments in Information & Communication Technology
- What is ChatGPT? (2023)
- What is a neural network in AI? (2023)
- What is an OTT platform? (2021)
- What is RFID? Give two applications. (2021)
- What is Cryptocurrency? Advantages and disadvantages? (2021)
- Differences between previous generations of mobile networks and 5G. (2021)
4. AI, Big Data, Cloud Computing, IoT & Cryptocurrency
- Full form of AIRAWAT and its infrastructure requirements. (2023)
- What is Cryptocurrency? (2021)
5. Contribution of Indian Scientists in Science & Technology
- Who is the “Birdman of India”? (2023)
- Who is the “Milkman of India”? (2023)
- Contributions of Homi Bhabha, Visvesvaraya, S.N. Bose, Meghnad Saha, H.G. Khorana. (2021)
- Dr. A.P.J. Abdul Kalam’s contributions. (2016)
- Nobel Prize in Science & Technology - C.V. Raman & H.G. Khorana. (2013)
6. Robotics, Machine Learning, Augmented Reality, Nanotechnology, RFID & Quantum Computing
- What are Nanomaterials? Two carbon allotropes as nanomaterials. (2023)
- What is nano mission? Objectives? (2018)
- Concept and applications of RFID. (2021)
- What are Quantum dots? Applications? (2013)
- Classical Computing vs. Quantum Computing. (2023)
- Size of nanoparticles and two uses. (2013)
7. Science & Technology Development in Rajasthan & Government Policies
- Breed Improvement Programme by Rajasthan Government. (2016 Reexam)
8. Space Technology - Indian Space Programme, Satellites & Launch Vehicles
- ADITYA-L1 mission. (2023)
- Difference between PSLV and GSLV. (2021)
9. Defence Technology - Missiles, Indian Missile Programme
- Salient features of QRSAM and ASTRA missiles. (2023)
10. Use of IT in Various Sectors
- Use of IT in E-Governance, E-Commerce, International Diplomacy. (2013)
- What is Cyber Warfare? How is it used in war? (2013)
11. Applications of Biotechnology & Advanced Scientific Techniques
- Real-Time PCR and Ct value in RT-PCR Test for Covid-19. (2021)
- What is cloning? Applications? (2013)
- Use of biosensors and biochips in medicine & surgery. (2013)
- Genetically Modified (GM) Crops in Indian Agriculture. (2013)
12. National Missions & Government Initiatives in Science & Technology
- National Supercomputing Mission (NSM) and three achievements. (2023)
Weightage Analysis (2013-2023)
Recent Trend: More focus on emerging technologies like AI, Quantum Computing, and Space Missions.
Shift in Pattern: Earlier, more factual questions (definitions, basic concepts). Now, more application-based and conceptual questions.
| Year | Number of Questions | Major Focus Areas |
|---|---|---|
| 2023 | 9 | AI, Quantum Computing, Supercomputers, Space Missions, Missiles |
| 2021 | 7 | Cryptocurrency, RFID, OTT, Mobile Networks, Indian Scientists |
| 2018 | 4 | Nano Mission, Analog vs. Digital Signals, Communication System |
| 2016 | 3 | APJ Abdul Kalam, Communication System, Breed Improvement |
| 2013 | 7 | E-Governance, Cyber Warfare, Biosensors, Nanoparticles, Cloning |
- More focus on AI, Space & Defense Technology, and Supercomputing in recent years.
- Traditional topics like Indian Scientists & Fundamental Science Concepts remain important.
Most Repeated Themes in RAS Mains (2013-2023)
Frequently Asked Topics (High Weightage)
- Artificial Intelligence (AI) & Robotics – Neural Networks, ChatGPT, AIRAWAT Supercomputer
- Space Technology – ISRO Missions, Satellites, PSLV vs. GSLV, Aditya-L1
- Defense Technology – Missiles (ASTRA, QRSAM, Agni), Cyber Warfare
- Quantum Computing – Quantum Dots, Classical vs. Quantum Computing
- Indian Scientists – APJ Abdul Kalam, Homi Bhabha, Har Gobind Khorana
Moderately Asked Topics
- IT & Digital India: Cybersecurity, Blockchain, Digital Governance
- Telecommunication: 5G, Mobile Networks, Frequency Spectrum
- Biotechnology & Health Tech: Cloning, Nanoparticles, RT-PCR, GM Crops
- Supercomputing & Data Science: National Supercomputing Mission (NSM), Big Data
Less Frequent but Still Relevant
- Communication Systems: Analog vs. Digital, Signal Propagation
- E-Governance & IT Applications: Use of IT in Governance & Diplomacy
Key Takeaway
- AI, Space, and Defense are the HOTTEST topics.
- Expect more analytical questions on AI, Quantum Computing, and Cybersecurity in upcoming exams.
Graphs & Charts to Show Weightage Trends
Steady increase, with the highest number of technology-related questions in 2023.
Difficulty Level Analysis (2013-2023)
- 2013-2018: More factual and definition-based questions.
- 2021-2023: Shift towards conceptual and application-based questions (AI, Quantum Computing, Space Tech).
- Future Trend: Expect more analytical and case study-based questions (AI in governance, Blockchain in finance, Cybersecurity in defense).
Key Observations
- The difficulty level has steadily increased over the years.
- More concept-based and analytical questions in recent years (2021-2023).
Emerging vs. Traditional Topics (Comparison Over Years)
Traditional Topics (2013-2018)
- E-Governance, IT, Indian Scientists, Analog & Digital Signals.
Emerging Topics (2021-2023)
- AI, Quantum Computing, Cryptocurrency, Supercomputers, Cyber Warfare.
Top 3 Most Asked Topics
- Space Technology: Satellites, ISRO Missions, PSLV vs. GSLV, Aditya-L1, etc.
- Indian Scientists & Their Contributions
- AI & Robotics: ChatGPT, Neural Networks, AIRAWAT, etc.
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