Cloud Computing Concepts

What are the three main cloud service models?

• Infrastructure as a service, Platform as a service, Storage as a service

• Infrastructure as a service, Platform as a service, Software as a service

• Public cloud service, Private cloud service and Hybrid cloud service

Explain the concept of virtualization in cloud computing.

• Virtualization in cloud computing involves creating virtual versions of resources to improve resource utilization, scalability, and flexibility.

• Virtualization in cloud computing does not impact scalability.

• Virtualization in cloud computing involves physical hardware only.

• Virtualization in cloud computing decreases resource utilization.

Resource provision means

• Maintaining the server components, Storing the data in a cloud storage

• Add and remove resources as much as you need.

• Parallelism, Fault tolerance and giving good Q.O.S in cloud.

• Selection, deployment and run-time management of S/W and H/W resources for good performance

How can cost management be optimized in cloud computing?

• Regularly monitor resource usage, implement auto-scaling, utilize cost-effective pricing models, optimize storage usage, leverage cloud provider tools.

• Implement manual scaling without monitoring

• Ignore resource usage, use the most expensive pricing models

• Never optimize storage usage, rely solely on cloud provider tools

What is the difference between SaaS, PaaS, and IaaS?

• SaaS delivers hardware, PaaS delivers platform to develop application and website, IaaS provides Internet on demand

• IaaS delivers Hardware

  PaaS provide interface for application or website,

  SaaS provides software

• IaaS provides Infrastructure,

  PaaS provides payment interface,

  SaaS provides stoarge

• IaaS provides Infrastructure, PaaS delivers platform to develop application and website, SaaS provides software

How does virtualization help in resource optimization in cloud?

• Virtualization reduces the need for resource allocation, leading to underutilization of hardware

• Virtualization increases the physical server count, resulting in resource wastage

• Virtualization limits the number of virtual machines that can run on a single physical server, reducing resource efficiency

• Virtualization enables multiple virtual machines to run on a single physical server, maximizing hardware resource utilization and allowing dynamic allocation based on demand.

Discuss the advantages of public cloud deployment.

• Limited storage capacity

• Advantages of public cloud deployment include scalability, cost-effectiveness, flexibility, and accessibility to resources.

• Higher costs compared to on-premises solutions

• Restricted access to resources

What are the key factors to consider for cost management in cloud?

• Overlooking resource usage, selecting instance sizes at random, not taking advantage of discounts, not setting budget alerts, and manually scaling based on intuition.

• Monitoring resource usage, optimizing instance sizes, leveraging discounts, setting budget alerts, and automating scaling based on demand.

• Ignoring resource usage, using the largest instance sizes available, avoiding discounts, not setting budget alerts, and manually scaling based on demand.

• Not considering resource usage, randomly selecting instance sizes, not utilizing discounts, ignoring budget alerts, and scaling based on a fixed schedule.

Describe the characteristics of Software as a Service (SaaS).

• SaaS is not accessible from any device with an internet connection

• Software as a Service (SaaS) is a cloud-based software delivery model with subscription-based pricing, automatic updates, scalability, accessibility from any device with an internet connection, and reduced IT infrastructure costs for users.

• Software as a Service (SaaS) requires physical installation on each user's device

• SaaS does not offer automatic updates to users

What role does hypervisor play in virtualization?

• Hypervisor manages physical hardware directly without abstraction

• Hypervisor abstracts physical hardware resources and enables multiple virtual machines to run on a single physical server.

• Hypervisor is not involved in virtualization

• Hypervisor limits virtual machines to one per physical server