IT Cloud Computing & Virtualization 3

Question 1

What is a 'cloud snapshot' used for?

Accepted Answer

Capturing a point-in-time copy of a virtual machine's disk for backup or recovery

Answer

A cloud snapshot is a point-in-time copy of a virtual machine disk or volume, used for backup, recovery, and creating new instances from a known good state.

Question 2

Which networking component in cloud environments provides a private, isolated section of the cloud where you can launch resources in a virtual network you define?

Accepted Answer

Virtual Private Cloud (VPC)

Answer

A Virtual Private Cloud (VPC) is an isolated virtual network within a cloud provider's infrastructure where customers can define their own IP address ranges, subnets, routing tables, and security settings.

Question 3

What does 'auto-scaling' allow in a cloud environment?

Accepted Answer

Automatically adjusting the number of compute instances based on traffic or load

Answer

Auto-scaling automatically increases or decreases the number of running compute instances in response to real-time demand, ensuring performance during peak loads and cost savings during low-traffic periods.

Question 4

What is the purpose of a cloud 'CDN' (Content Delivery Network)?

Accepted Answer

To distribute content to users from geographically closer servers for faster delivery

Answer

A CDN caches and delivers content (web pages, videos, images) from edge servers located near the end user, reducing latency and improving load times.

Question 5

In cloud security, what is the 'shared responsibility model'?

Accepted Answer

Security responsibilities are divided between the cloud provider and the customer

Answer

The shared responsibility model defines that the cloud provider secures the underlying infrastructure (hardware, facilities, networking), while the customer is responsible for securing their data, applications, and configurations.

IT - Information Technology Certified Practice Test

IT - Information Technology Certified Practice Test

IT Cloud Computing & Virtualization 3