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MCQ Practice

Technological Knowledge MCQs

Which of these is a strong example of a password per security best practices?

  • A. password123
  • B. P@55w0rd
  • C. Qwerty!
  • D. 7h!5Is$tr0ng
Explanation:
A strong password uses a mix of symbols, letters, and numbers in an unpredictable way.

What does "phishing" typically involve in cybersecurity?

  • A. Sending malware via USB
  • B. Tricking users into giving credentials via fake emails
  • C. Intercepting wireless signals
  • D. Overloading a network
Explanation:
Phishing is an attack in which users are deceived (often via email) into revealing sensitive information.

What is the main goal of NASA's Artemis program?

  • A. Send humans to Mars
  • B. Return astronauts to the Moon
  • C. Build a space station on Mars
  • D. Discover exoplanets
Explanation:
Artemis aims to return humans (including the first woman) to the lunar surface.

Which space agency launched the Gaia mission to map the Milky Way?

  • A. NASA
  • B. ESA
  • C. Roscosmos
  • D. JAXA
Explanation:
The European Space Agency (ESA) launched Gaia to create a precise 3D star map.

Which Mars rover first identified definitive evidence of past water on Mars?

  • A. Spirit
  • B. Opportunity
  • C. Curiosity
  • D. Sojourner
Explanation:
Opportunity found strong evidence (hematite spheres) of ancient water on Mars.

Which phenomenon provides evidence that the universe is expanding?

  • A. Galactic collisions
  • B. Redshift of distant galaxies
  • C. Aurora borealis
  • D. Supernova explosions
Explanation:
Edwin Hubble observed that distant galaxies are redshifted, indicating expansion.

What kind of spectrum is produced by a perfect blackbody at a given temperature?

  • A. Emission lines
  • B. Continuous spectrum
  • C. Absorption lines
  • D. No spectrum
Explanation:
A perfect blackbody emits a continuous spectrum depending on its temperature.

What type of celestial object is often referred to as a "baby star" still in formation?

  • A. White dwarf
  • B. Brown dwarf
  • C. Protostar
  • D. Red giant
Explanation:
A protostar is a very young star still forming from a collapsing gas cloud.

Which of the following spacecraft performed a flyby of Pluto in 2015?

  • A. Voyager 2
  • B. New Horizons
  • C. Cassini
  • D. Juno
Explanation:
New Horizons is the probe that flew by Pluto in July 2015.

Which planet has its axis tilted by about 98 degrees, leading to extreme seasons?

  • A. Uranus
  • B. Venus
  • C. Mercury
  • D. Neptune
Explanation:
Uranus rotates almost on its side (~98° tilt), causing extreme seasonal changes.