Virtualization in IaaS (Infrastructure as a Service)

Question 1

What does IaaS stand for in cloud computing?

Answer 1

Infrastructure as a Service

Question 2

What does a subscriber get in IaaS?

Answer 2

Access to virtual computers, network-accessible storage, network infrastructure components, and configuration services.

Question 3

How are usage fees calculated in IaaS?

Answer 3

Typically, per CPU hour, data GB stored per hour, network bandwidth consumed, and more.

Question 4

What is the role of the Hypervisor in IaaS?

Answer 4

It is the lower layer in the operating system, responsible for creating and managing virtual machines.

Question 5

What is the role of the Guest OS in IaaS?

Answer 5

It runs within a virtual machine (VM) and is controlled by the subscriber.

Question 6

What is the Cloud Manager’s role in IaaS?

Answer 6

It’s the public access point for subscribers to manage cloud resources, authenticate users, and perform top-level resource management.

Question 7

What is the Data Object Storage (DOS) used for in IaaS?

Answer 7

It stores subscriber metadata and essential data, like user credentials and operating system images.

Question 8

How does Virtualization work in IaaS?

Answer 8

The hypervisor uses hardware to synthesize virtual machines, making them appear as real hardware to subscribers.