Selected MCQ

Current Question
What is the benefit of using RAID 1 in storage?
  • A. Increased storage capacity
  • B. Fault tolerance through mirroring
  • C. Improved write speed
  • D. Encryption
Correct Answer: B
Explanation:
RAID 1 mirrors data onto multiple disks, so data is not lost if one disk fails.
Related Question 1
What is the main benefit of using a parallel kinematic robot structure?
  • A. Lower cost
  • B. Higher stiffness and precision for certain tasks
  • C. Requires fewer motors
  • D. It can hover
Correct Answer: B
Explanation:
Parallel structures, such as delta robots, provide high stiffness and precision for tasks like pick-and-place.
Related Question 2
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 3
What is the key benefit of virtualization in cloud computing?
  • A. Reduced internet speed
  • B. Isolation of applications in secure environments
  • C. Human-driven networking
  • D. No changes needed
Correct Answer: B
Explanation:
Virtualization isolates and encapsulates applications in virtual machines or containers.
Related Question 4
Which technology helps secure communications using quantum mechanics?
  • A. Quantum key distribution (QKD)
  • B. Standard VPN
  • C. Hashing
  • D. WPA2
Correct Answer: A
Explanation:
QKD uses quantum particles to securely share encryption keys, with eavesdropping detectable.
Related Question 5
What is the advantage of using ROS (Robot Operating System)?
  • A. It designs robot hardware
  • B. It provides a standard platform for robot software components
  • C. It replaces the operating system
  • D. It secures robot networks
Correct Answer: B
Explanation:
ROS offers tools and libraries to simplify robot software development and integration.