Selected MCQ

Current Question
Which IoT protocol operates over UDP and is designed for constrained devices?
  • A. MQTT
  • B. HTTP
  • C. CoAP
  • D. FTP
Correct Answer: C
Explanation:
CoAP (Constrained Application Protocol) is a lightweight RESTful protocol for IoT over UDP.
Related Question 1
What protocol is lightweight and commonly used for machine-to-machine communication in IoT devices?
  • A. HTTP
  • B. MQTT
  • C. FTP
  • D. SSH
Correct Answer: B
Explanation:
MQTT is a lightweight publish/subscribe protocol ideal for IoT sensors with low bandwidth.
Related Question 2
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 3
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 4
Which protocol is used to transfer files over SSH securely?
  • A. FTPS
  • B. HTTPS
  • C. SCP (Secure Copy)
  • D. SMTP
Correct Answer: C
Explanation:
SCP (Secure Copy Protocol) is used to transfer files securely over an SSH connection.
Related Question 5
Which of these models is specifically designed for image recognition tasks?
  • A. RNN
  • B. CNN
  • C. LSTM
  • D. Naive Bayes
Correct Answer: B
Explanation:
Convolutional Neural Networks (CNNs) are designed for processing image data.