Important Questions and Answers for Class 11 Computer Science Chapter 3 Emerging Trends 2025-26

Q1. Which of the following is NOT a characteristic of Big Data?

• (a) Volume
• (b) Vocabulary
• (c) Variety
• (d) Veracity

Answer: (b) Vocabulary.

Q2. What does the term 'append only' open ledger refer to in blockchains?

• (a) Anyone can read and modify records freely
• (b) Only new transactions can be added, previous records can't be changed
• (c) Only administrators can access the ledger
• (d) Transactions are private and hidden

Answer: (b) Only new transactions can be added, previous records can't be changed.

Q3. Which service model allows users to manage deployed applications but not the underlying infrastructure?

• (a) Infrastructure as a Service (IaaS)
• (b) Platform as a Service (PaaS)
• (c) Software as a Service (SaaS)
• (d) Database as a Service (DBaaS)

Answer: (b) Platform as a Service (PaaS).

2. Very Short Answer (VSA).

Q1. What is the main purpose of Artificial Intelligence?

Answer: Artificial Intelligence aims to simulate human intelligence in machines, enabling them to perform tasks such as learning, decision making, and problem solving with minimal human intervention.

Q2. Define a knowledge base in the context of AI.

Answer: A knowledge base refers to a store of information, including facts, assumptions, and rules, which an AI system uses to make decisions.

Q3. What is the Internet of Things (IoT)?

Answer: IoT is a network of devices embedded with hardware and software that can connect and exchange data with other devices on the same network.

Q4. Mention any one use of sensors in everyday devices.

Answer: In smartphones, accelerometer and gyroscope sensors detect the orientation and rotation, enabling automatic screen rotation.

3. Short Answer Questions.

Q1. Explain the difference between Virtual Reality (VR) and Augmented Reality (AR) with examples.

Answer: Virtual Reality (VR) creates a completely computer-generated environment, immersing the user in a virtual world, such as with VR headsets for gaming. Augmented Reality (AR), like location-based AR apps, overlays digital information onto the real physical surroundings, adding useful data to what users see.

Q2. How does Machine Learning make predictions?

Answer: Machine Learning uses algorithms called models, which are trained and tested using data sets. After sufficient training, these models can make accurate predictions about new, previously unseen data without explicit programming.

Q3. What are the key benefits of cloud computing for startups?

Answer: Cloud computing provides startups with cost-effective, on-demand access to resources like storage and software, letting them scale operations without heavy upfront investments in hardware or software infrastructure.

Q4. Give two ways in which Big Data is different from traditional data.

Answer: Big Data is much larger in volume and often unstructured, including varied formats like text, images, and videos. Traditional data is smaller and mainly structured, making it easier to process using standard database systems.

4. Long Answer Questions.

Q1. Describe the major challenges in managing Big Data and how data analytics helps organizations.

Answer: Managing Big Data is complex due to its significant volume, velocity, and variety. Challenges include storing, integrating, processing, searching, and visualizing vast, often unstructured information. Data analytics employs specialized tools to uncover patterns and valuable insights, assisting organizations in decision making, optimizing business processes, and discovering new opportunities.

1. Collect and consolidate large, varied data sets.
2. Apply analytics techniques to extract trends or information.
3. Use insights to inform decisions and strategies.

Q2. Explain the concept of decentralization in blockchain technology and its advantages.

Answer: In blockchain, decentralization means that data is not stored on a single central database, but is instead distributed across many networked computers (nodes). Every node holds the complete copy of the ledger, and any addition requires consensus. This structure prevents altering of previous data, ensuring security, transparency, and resistance to data loss or hacking.

1. Distribute copies of the ledger to all nodes.
2. Add new blocks only with network-wide verification.
3. Safeguard data against tampering and failure.

Q3. How can Internet of Things (IoT) and sensors help create smart cities and improve daily life?

Answer: IoT connects devices like sensors, cameras, and controllers into intelligent networks, automating resource distribution, managing traffic flows, alerting about pollution or emergencies, and enhancing safety. In smart cities, sensor-equipped bridges, tunnels, or buildings enable timely maintenance and risk alerts, while utilities like water or electricity can be monitored for efficient, sustainable use.

1. Deploy connected sensors on city infrastructure.
2. Collect real-time data for monitoring and control.
3. Respond to issues and manage resources efficiently.

Q4. True or False Questions.

Q1. In cloud computing, users pay for resources strictly on a pay-per-use basis.

Answer: True.

Q2. In grid computing, all nodes must be in the same geographic location.

Answer: False.

Q3. Virtual Reality modifies the real world by adding digital components to it.

Answer: False.

Q4. Sensors in smartphones help detect orientation and movement.

Answer: True.

5. Match the Following Questions.

Q1. Match the following technologies to their correct applications.

Answer: 1 - A, 2 - B, 3 - C, 4 - D, 5 - E

Benefits of Learning Emerging Trends in Class 11 Computer Science

• Explore the future of technology with Class 11 Computer Science Chapter 3 Emerging Trends question answer. Get clarity and confidence in topics like AI, IoT, and big data.
• This guide includes Class 11 Computer Science Chapter 3 emerging trends Important Questions and conceptual answers. Find short and long answer examples that will help you understand topics for your 2025-26 session and boost your exam writing skills in Computer Science.
• Download Emerging Trends Class 11 questions and answers PDF for easy learning on the go. Practice with Emerging Trends Class 11 MCQ, VSA, and more in one place—helping you prepare effectively for the academic year and beyond.