Selected MCQ

Current Question
Which tool is commonly used for container orchestration in IT environments?
  • A. Docker
  • B. Kubernetes
  • C. Ansible
  • D. Terraform
Correct Answer: B
Explanation:
Kubernetes is widely used for orchestrating containers at scale.
Related Question 1
Which tool is widely used for infrastructure as code (IaC) in IT?
  • A. Git
  • B. Docker
  • C. Terraform
  • D. MySQL
Correct Answer: C
Explanation:
Terraform is a common IaC tool for defining and provisioning infrastructure.
Related Question 2
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 3
Which of the following is an example of an actuator commonly used in robotics for precise position control?
  • A. Stepper motor
  • B. Photodiode
  • C. Resistor
  • D. Capacitor
Correct Answer: A
Explanation:
Stepper motors move in discrete steps, enabling precise position control in robotics.
Related Question 4
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 5
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.