Selected MCQ

Current Question
Which type of cyberattack involves overwhelming a system with traffic to disrupt service?
  • A. Phishing
  • B. Man-in-the-Middle
  • C. DDoS (Distributed Denial of Service)
  • D. Brute force
Correct Answer: C
Explanation:
A DDoS attack floods a target with excessive traffic, rendering services unavailable.
Related Question 1
Which concept involves using sensor data to create a 3D model of a city or facility?
  • A. Digital wallet
  • B. Digital twin
  • C. Virtual machine
  • D. Quantum replica
Correct Answer: B
Explanation:
Digital twins can model entire environments or systems in real-time using sensor data.
Related Question 2
Which type of malware encrypts a user’s data and demands payment?
  • A. Ransomware
  • B. Spyware
  • C. Adware
  • D. Rootkit
Correct Answer: A
Explanation:
Ransomware locks or encrypts data and demands payment (ransom) for the key.
Related Question 3
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
Correct Answer: C
Explanation:
A protostar is a very young star still forming from a collapsing gas cloud.
Related Question 4
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 5
Which of these is a type of robot end-effector for grasping objects?
  • A. Servo motor
  • B. Vacuum gripper
  • C. Gyroscope
  • D. Omni-wheel
Correct Answer: B
Explanation:
A vacuum gripper (suction) is a common end-effector for picking up flat or smooth items.