Selected MCQ

Current Question
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 1
Which of these is NOT a common technique for securing wireless networks?
  • A. WPA3 encryption
  • B. SSID broadcast
  • C. MAC address filtering
  • D. Disabling SSID broadcast
Correct Answer: B
Explanation:
Broadcasting the SSID is not a security measure; enabling WPA3 or hiding the SSID (though weak) are security techniques.
Related Question 2
Which activation function is commonly used in hidden layers of deep neural networks due to its ability to mitigate vanishing gradient problems?
  • A. Sigmoid
  • B. Tanh
  • C. ReLU
  • D. Softmax
Correct Answer: C
Explanation:
ReLU (Rectified Linear Unit) is popular for hidden layers because it accelerates convergence by avoiding vanishing gradients.
Related Question 3
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 4
What allows dynamic network configuration in emerging tech?
  • A. Hardware-only management
  • B. Software Defined Networking (SDN)
  • C. Analog cables
  • D. Static routing only
Correct Answer: B
Explanation:
SDN separates control and data planes, enabling programmable network configurations.
Related Question 5
What does SDN (Software Defined Networking) allow?
  • A. Hardware-only management
  • B. Dynamic network configuration via software control
  • C. Eliminating routers
  • D. Only static routing
Correct Answer: B
Explanation:
SDN separates control and data planes, enabling programmable network configurations.