Selected MCQ

Current Question
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 1
Which of the following is a widely used virtualization platform for managing virtual machines on cloud infrastructure?
  • A. Docker Engine
  • B. Kubernetes
  • C. Hyper-V
  • D. Apache Hadoop
Correct Answer: C
Explanation:
Hyper-V (by Microsoft) is a hypervisor for creating and managing virtual machines.
Related Question 2
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 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
What is a 'digital twin' used for?
  • A. A backup of a database
  • B. A virtual model of a physical system for simulation
  • C. An identical computer router
  • D. Digital photography editing
Correct Answer: B
Explanation:
A digital twin is a software model that simulates a physical object or system.
Related Question 5
In IoT, what is MQTT primarily used for?
  • A. Hardware design
  • B. Lightweight messaging protocol
  • C. Database management
  • D. Encryption standard
Correct Answer: B
Explanation:
MQTT is a lightweight publish/subscribe messaging protocol widely used in IoT.