Science & Technology MCQs

Post-quantum cryptography refers to cryptographic algorithms that are thought to be secure against attacks by both classical and quantum computers, aiming to protect data in the future quantum era.

Quantum computers, when powerful enough, could break many of the public-key cryptography systems currently used to secure online communications and data, posing a significant cybersecurity threat.

Multiple Indian institutions, including IISc, IITs, and TIFR, are actively involved in quantum computing research, with significant contributions to cybersecurity applications.

The RLV-TD is designed to perform a horizontal landing, similar to how the Space Shuttle used to land, which is a key aspect of reusability.

The RLV-TD test aimed to demonstrate the capability of autonomous re-entry and high-speed landing of a winged vehicle, a crucial step towards developing reusable launch vehicles.

ISRO successfully conducted the test of its Reusable Launch Vehicle (RLV) - Technology Demonstrator (TD) on April 7, 2024, at the Satish Dhawan Space Centre in Sriharikota.

Multiple Indian institutions, including ISRO, DRDO, and TIFR, are actively engaged in various aspects of quantum communication research and development, contributing to India's advancements in this field.

Quantum states are extremely fragile and susceptible to environmental noise, leading to decoherence. This loss of quantum information over distance is a major hurdle for establishing robust, long-distance quantum communication networks.

Quantum entanglement, where two or more particles become linked and share the same fate regardless of the distance separating them, is crucial for QKD. Any attempt to eavesdrop on the entangled particles disturbs their state, alerting the communicating parties.

The Gaganyaan mission is designed to carry a crew of three astronauts into space for a mission duration of up to seven days.