Introduction to Virtualization and Cloud Computing

What is a hypervisor in virtualization technology?

• A hypervisor is a physical server that hosts virtual machines.

• A hypervisor is a type of computer memory used in virtualization.

• A hypervisor is a software that creates and runs virtual machines.

• A hypervisor is a network protocol for virtual machine communication.

Explain the difference between public, private, and hybrid cloud service models.

• Public cloud services are only for personal use

• Hybrid cloud services are not a combination of public and private clouds

• Private cloud services are shared among multiple organizations

• Public cloud services are accessible to anyone, private cloud services are dedicated to a single organization, and hybrid cloud services combine elements of both.

How do you manage virtual machines in a virtualized environment?

• Use virtualization management software like VMware vSphere, Microsoft Hyper-V, or KVM.

• Use physical servers instead of virtual machines

• Ignore virtualization management software and rely on default settings

• Manually configure each virtual machine individually

What is containerization and how does it differ from virtualization?

• Containerization isolates applications at the user level, while virtualization isolates at the hardware level.

• Containerization requires a hypervisor, while virtualization does not.

• Containerization is more resource-intensive than virtualization.

• Containerization shares resources between applications, while virtualization does not.

Discuss the importance of cloud security in virtualization and cloud computing.

• Data security is not a concern in cloud computing

• Cloud security is not important in virtualization and cloud computing

• The importance of cloud security in virtualization and cloud computing cannot be overstated as it safeguards data, ensures compliance, prevents unauthorized access, and maintains infrastructure integrity.

• Unauthorized access is beneficial for cloud security

What are some benefits of virtualization technology?

• Less flexibility, slower disaster recovery

• Increased costs, reduced security

• Cost savings, improved disaster recovery, flexibility and scalability, easier software testing and development, enhanced security

• Decreased performance, limited compatibility

Name one popular hypervisor technology used in virtualization.

• XenServer

• Microsoft Hyper-V

• KVM

• VMware vSphere

Describe the Software as a Service (SaaS) cloud service model.

• SaaS is a cloud service model where software is free to download and use.

• SaaS is a cloud service model where software is physically stored on local servers.

• SaaS is a cloud service model where software is hosted on a cloud infrastructure and accessed over the internet on a subscription basis.

• SaaS is a cloud service model where software is accessed offline.

What are some common tools used for virtual machine management?

• XenServer

• Docker

• VMware vSphere, Microsoft Hyper-V, VirtualBox, KVM

• Oracle VirtualBox

How does containerization help in application deployment and scalability?

• Containerization leads to compatibility issues across different environments

• Containerization limits the ability to scale applications efficiently

• Containerization increases application complexity and reduces portability

• Containerization standardizes application packaging, ensures compatibility across environments, and enables efficient resource utilization and scaling.