Selected MCQ

Current Question
Which network topology feature is characteristic of a star network?
  • A. Every node is connected to exactly two others in a ring
  • B. All nodes share a common bus
  • C. All nodes are connected to a central hub
  • D. Nodes form a mesh with multiple paths
Correct Answer: C
Explanation:
In a star topology, each node connects to a central hub or switch for communication.
Related Question 1
What type of network topology features a single central point with all devices connected to it?
  • A. Bus topology
  • B. Star topology
  • C. Ring topology
  • D. Mesh topology
Correct Answer: B
Explanation:
A star topology connects all nodes to a central hub or switch.
Related Question 2
In a neural network, why is it important to normalize input features?
  • A. To make the network more complex
  • B. To improve convergence speed and training stability
  • C. To prevent overfitting entirely
  • D. Normalization is not needed
Correct Answer: B
Explanation:
Feature normalization ensures they have similar scales, which helps gradient descent converge faster.
Related Question 3
What is a feature of 6G compared to 5G?
  • A. Slower speed to save energy
  • B. Use of terahertz bands for ultra-high data rates
  • C. Reduced device connectivity
  • D. Only satellite usage
Correct Answer: B
Explanation:
6G research aims to use the terahertz spectrum for even higher speed and capacity
Related Question 4
Which network tech supports many IoT devices over long ranges?
  • A. Wi-Fi 6
  • B. LoRaWAN
  • C. Bluetooth 5.0
  • D. Ethernet
Correct Answer: B
Explanation:
LoRaWAN is designed for long-range, low-power IoT sensor communications.
Related Question 5
What is a key feature of quantum computing that offers computational advantages?
  • A. Using vacuum tubes
  • B. Superposition and entanglement
  • C. Fiber optic circuits
  • D. DC power only
Correct Answer: B
Explanation:
Quantum superposition and entanglement enable certain calculations to be done much faster.