Basic Quiz – 6 October 2026 | Science & Tech

Answer: (c) Qubits

Explanation: Ordinary computers use bits, which represent information as either 0 or 1. Quantum computers use quantum bits, or qubits.

A qubit can use quantum phenomena such as superposition, allowing it to exist in a combination of states until measured. Quantum computers can therefore offer major advantages for certain specialised computational problems, although they are not simply faster than ordinary computers for every task.

Answer: (b) Cryptocurrencies

Explanation: Blockchain is a type of distributed digital ledger in which records are maintained across multiple participants rather than being stored only in one central location.

It became widely known through cryptocurrencies such as Bitcoin, where blockchain is used to maintain transaction records. However, blockchain is not limited to cryptocurrencies. It can also be applied to areas such as supply-chain tracking and digital record management.

Answer: (a) AI-generated or manipulated synthetic media

Explanation: Deepfakes use Artificial Intelligence techniques to create or manipulate images, videos or audio so that they can appear authentic.

For example, AI may be used to alter a person’s face in a video or generate speech that sounds like a real person’s voice. This technology has legitimate applications, but it can also be misused for misinformation, impersonation and fraud.

Answer: (b) Artificial Intelligence

Explanation: Machine Learning is a branch of Artificial Intelligence. Instead of explicitly programming a computer for every possible situation, Machine Learning allows a system to learn patterns from data and use those patterns to make predictions or decisions.

For example, an email service can learn from previously identified spam messages and use those patterns to detect new spam.

Answer: (a)

Explanation: Artificial Intelligence enables computer systems to perform tasks that normally require some form of human intelligence, such as learning, reasoning, recognising patterns, understanding language and making decisions. AI is a broad field, and Machine Learning is one of its important subsets.