Regarding the 'High Altitude Pseudo-Satellite' (HAPS) developed by India in 2026, consider the following: 1. It is a solar-powered unmanned aircraft that can fly in the stratosphere for months. 2. It acts as a bridge between conventional satellites and high-altitude drones for surveillance and communication. Which is correct?

In March 2026, which Indian organization successfully tested the 'Shakti-2' Quantum Encryption system for secure military communications?

With reference to 'Visible Light Communication' (VLC) technology, which of the following statements is/are correct? 1. VLC uses electromagnetic spectrum wavelengths between 375 and 780 nm. 2. VLC is known as Li-Fi (Light Fidelity). 3. VLC cannot pass through opaque objects. Select the correct answer:

What is the full form of 'SMTP' in email communication?

In April 2026, which country hosted the 'International Conference on 6G Standards'?

In April 2026, India's first 'Quantum Communication Corridor' became fully operational between which two locations?

In March 2026, which Indian city hosted the first-ever 'International Quantum Communication Conclave'?