A+ 1101 Day 7 Understanding Virtualization and Cloud Concepts

Front

Which of the following is a characteristic of the public cloud deployment model? Resources are owned and operated by a single organization for private use, Resources are shared over the internet and available to the general public, Resources are managed by a third party but used exclusively by one organization, Resources are only available on-premises

Back

Resources are shared over the internet and available to the general public

Answer explanation

The public cloud deployment model is characterized by resources being shared over the internet and available to the general public, unlike private or on-premises models which restrict access.

Front

What is the primary function of a hypervisor in virtualization?

Back

To manage virtual machines on a host system

Answer explanation

The primary function of a hypervisor is to manage virtual machines on a host system, allowing multiple operating systems to run concurrently on a single physical machine.

Front

Which cloud service model provides hardware resources such as servers, storage, and networking over the internet?

Back

Infrastructure as a Service (IaaS)

Answer explanation

Infrastructure as a Service (IaaS) provides virtualized hardware resources like servers, storage, and networking over the internet, allowing users to manage and scale their infrastructure as needed.

Front

Which type of virtualization allows multiple operating systems to run on a single physical machine by using a hypervisor?

Back

Server virtualization

Answer explanation

Server virtualization uses a hypervisor to allow multiple operating systems to run on a single physical machine, making it the correct choice. Other types, like application and desktop virtualization, serve different purposes.

Front

Which of the following is a benefit of virtualization? Increased hardware costs, Reduced energy consumption, Decreased system flexibility, Increased physical space requirements

Back

Reduced energy consumption

Answer explanation

Virtualization allows multiple virtual machines to run on a single physical server, leading to reduced energy consumption as fewer physical machines are needed, unlike the other options which imply negative impacts.

Front

Which cloud deployment model combines both private and public cloud features?

Back

Hybrid cloud

Answer explanation

The hybrid cloud model integrates both private and public cloud features, allowing for greater flexibility and scalability by enabling data and applications to be shared between them.

Front

Which of the following best describes a Type 1 hypervisor? Options: Runs on top of an existing operating system, Runs directly on the host's hardware, Is used only for application virtualization, Is installed within a virtual machine

Back

Runs directly on the host's hardware

Answer explanation

A Type 1 hypervisor, also known as a bare-metal hypervisor, runs directly on the host's hardware, allowing for better performance and resource management compared to a Type 2 hypervisor, which runs on top of an existing operating system.

Front

Which cloud service model is most suitable for developers who need a platform to build and deploy applications without managing underlying infrastructure?

Back

PaaS

Answer explanation

PaaS (Platform as a Service) is ideal for developers as it provides a platform to build and deploy applications without the need to manage the underlying infrastructure, unlike IaaS and SaaS.

Front

A company wants to ensure quick recovery of its data and applications in case of a disaster. Which cloud feature should they utilize?

Back

Disaster recovery as a service (DRaaS)

Answer explanation

Disaster recovery as a service (DRaaS) provides a comprehensive solution for quick recovery of data and applications after a disaster, making it the ideal choice for the company's needs.

Front

Which of the following is an example of desktop virtualization?
- Running multiple virtual servers on a single physical server
- Accessing a virtual desktop environment from a remote location
- Using cloud storage to save files
- Encrypting data on a hard drive

Back

Accessing a virtual desktop environment from a remote location

Answer explanation

Accessing a virtual desktop environment from a remote location is a key aspect of desktop virtualization, allowing users to interact with a virtualized desktop as if it were local, unlike the other options which do not represent desktop virtualization.