ICT Cloud Computing and Virtualization 2

Question 1

Which cloud deployment model hosts services exclusively for a single organization and can be managed on-premises or by a third party?

Accepted Answer

Private cloud

Answer

A private cloud is dedicated to one organization, offering greater control and security than a public cloud.

Question 2

In virtualization, what is a 'snapshot'?

Accepted Answer

A point-in-time copy of a virtual machine's state

Answer

A snapshot captures the exact state of a VM at a moment in time, allowing rollback if needed.

Question 3

Which cloud service model gives developers the most control over the operating system and middleware?

Accepted Answer

IaaS

Answer

IaaS provides raw compute, storage, and networking, giving developers full OS-level control.

Question 4

What does 'elasticity' mean in cloud computing?

Accepted Answer

Automatic scaling of resources up or down based on demand

Answer

Elasticity allows cloud resources to automatically expand or contract in response to workload changes.

Question 5

Which technology allows multiple virtual machines to share a single physical network interface card?

Accepted Answer

SR-IOV (Single Root I/O Virtualization)

Answer

SR-IOV partitions a physical NIC into multiple virtual functions, each assignable to a separate VM.

ICT - Information Communication Technology Practice Test