Selected MCQ

Current Question
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 1
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 2
Which technology is used for secure, short-range wireless communication in IoT devices?
  • A. Wi-Fi
  • B. Bluetooth Low Energy (BLE)
  • C. Ethernet
  • D. 4G LTE
Correct Answer: B
Explanation:
Bluetooth Low Energy is a wireless protocol for low-power short-range communication.
Related Question 3
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 4
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 5
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.