IT Cloud Computing & Virtualization 2

Question 1

Which containerization technology packages an application and its dependencies into a portable, lightweight unit that can run consistently across different environments?

Accepted Answer

Docker container

Answer

Docker containers package an application with all its dependencies into a standardized unit, ensuring consistent behavior regardless of the environment in which they run.

Question 2

What is the key difference between containers and virtual machines?

Accepted Answer

Containers share the host OS kernel while VMs run a full separate OS per instance

Answer

Containers share the host operating system kernel and isolate at the application layer, making them more lightweight than VMs, which each run a full OS instance.

Question 3

In cloud computing, what is a 'availability zone'?

Accepted Answer

An isolated location within a cloud region with independent power and networking

Answer

An availability zone is one or more discrete data centers within a cloud region that have redundant power, networking, and connectivity, designed to be isolated from failures in other zones.

Question 4

Which cloud cost model charges customers only for the computing resources they actually consume, typically measured by the hour or minute?

Accepted Answer

Pay-as-you-go pricing

Answer

Pay-as-you-go pricing charges customers based on actual resource consumption (compute time, storage used, data transferred), with no upfront commitment required.

Question 5

What is 'Infrastructure as Code' (IaC) in the context of cloud computing?

Accepted Answer

Managing and provisioning cloud infrastructure through machine-readable configuration files

Answer

Infrastructure as Code (IaC) uses configuration files (such as Terraform or CloudFormation templates) to define, provision, and manage cloud infrastructure in a repeatable and version-controlled way.

IT - Information Technology Certified Practice Test

IT - Information Technology Certified Practice Test

IT Cloud Computing & Virtualization 2