Selected MCQ

Current Question
Which of these is a common application of industrial robots?
  • A. Surgical operations on humans
  • B. Welding and assembly in factories
  • C. Detecting distant earthquakes
  • D. Providing home assistance
Correct Answer: B
Explanation:
Industrial robots are widely used for tasks like welding and assembly in manufacturing.
Related Question 1
What is a common use of a security certificate on websites?
  • A. To improve page speed
  • B. To prove domain ownership and enable HTTPS
  • C. To store user data
  • D. To track cookies
Correct Answer: B
Explanation:
SSL/TLS certificates authenticate website identity and enable encrypted HTTPS connections.
Related Question 2
What is a common method for brute-forcing network passwords?
  • A. SQL injection
  • B. Dictionary attack
  • C. DNS spoofing
  • D. Packet sniffing
Correct Answer: B
Explanation:
A dictionary attack tries many possible passwords from a wordlist to guess credentials.
Related Question 3
What is a common defense against a DDoS attack?
  • A. Multi-factor authentication
  • B. Rate limiting and filtering
  • C. Switching to HTTP from HTTPS
  • D. Enabling auto-merge
Correct Answer: B
Explanation:
Rate limiting or traffic filtering can help mitigate Distributed Denial of Service attacks.
Related Question 4
In wheeled mobile robots, what is 'skid steering'?
  • A. Steering using a separate pivot wheel
  • B. Rotating each wheel at different speeds to turn
  • C. Fixed steering angle
  • D. Flying mode
Correct Answer: B
Explanation:
Skid steering turns by differentially driving wheels on each side.
Related Question 5
Which actuation method provides high force in a compact form, often used in heavy robots?
  • A. Electric motors
  • B. Hydraulic actuators
  • C. Pneumatic cylinders
  • D. Solenoids
Correct Answer: B
Explanation:
Hydraulic actuators provide high force and are common in heavy-duty robotics.