Selected MCQ

Current Question
Which of the following is NOT a dwarf planet in our solar system?
  • A. Pluto
  • B. Eris
  • C. Haumea
  • D. Titan
Correct Answer: D
Explanation:
Titan is a large moon of Saturn, not classified as a dwarf planet.
Related Question 1
Which planet in our solar system has an orbital period shorter than its rotational period (a day longer than its year)?
  • A. Mercury
  • B. Venus
  • C. Mars
  • D. Jupiter
Correct Answer: B
Explanation:
Venus rotates very slowly (a Venusian day is about 243 Earth days) compared to its 225-day orbit around the Sun.
Related Question 2
The exoplanet candidate discovered orbiting Alpha Centauri A is notable because its mass is similar to that of which planet in our Solar System?
  • A. Earth
  • B. Jupiter
  • C. Saturn
  • D. Uranus
Correct Answer: C
Explanation:
Observations suggest an Alpha Centauri A exoplanet with a mass similar to Saturn, likely a gas giant.
Related Question 3
Which of the following is an example of a relational database management system (RDBMS)?
  • A. MongoDB
  • B. Cassandra
  • C. MySQL
  • D. Redis
Correct Answer: C
Explanation:
MySQL is a popular relational database system.
Related Question 4
Which nearby star system had four rocky exoplanets confirmed around it by 2025?
  • A. Barnard's Star
  • B. Proxima Centauri
  • C. Sirius
  • D. Vega
Correct Answer: A
Explanation:
Four small rocky planets were confirmed around Barnard's Star (though none are in the habitable zone).
Related Question 5
Which of the following is an emerging tech for generating realistic human images and voices?
  • A. Blockchain
  • B. Generative AI (GANs)
  • C. Quantum computing
  • D. Fiber optics
Correct Answer: B
Explanation:
Generative AI models like GANs can create realistic synthetic images, audio, and text.