Comp TIA A+ Cert Master 4.1 Virtualization and Cloud Computing Study

A company deploys a new cloud service for its customers and its salespeople. Depending on the login access, users of the service will either shift to a resource center internal to the organization or to a forum where customers can freely collaborate. What cloud model does the company deploy?

Hybrid cloud A hybrid cloud type is a cloud computing solution that implements some sort of hybrid public/private/community.

An engineer at an organization quickly deploys a small network in a cloud space. The network includes a subnet and router hidden behind a firewall for software testing. What type of service includes the ability to roll out such a cloud-based network?

IaaS Infrastructure as a service (IaaS) is a means of provisioning IT resources, such as servers, load balancers, and storage area network (SAN) components, quickly.

The company administrator wants to provision IT resources, such as servers, load balancers, and storage area network (SAN) components, to deploy when they need them rather than purchase these components separately. Which service model would be best?

IaaS Infrastructure as a service (IaaS) is a means of provisioning IT resources, such as servers, load balancers, and storage area network (SAN) components, quickly.

The Chief Information Officer (CIO) of an organization signs a contract with a cloud vendor. The vendor promises to maintain a level of service equal to Five Nines. What does the vendor offer to fulfill this promise?

High availability

What would be a reason an organization would require a private cloud service? (Select all that apply.)

A cloud architecture is maintained and managed within an enterprise data center. Organizations can exercise greater control over the privacy and security of their services.

In a virtual desktop infrastructure, what client functionality does a server handle? (Select all that apply.)

Application processing Virtual desktop infrastructure (VDI) refers to using virtual machines to provision corporate desktops. The server performs all application processing in the virtual desktop environment (VDE). Data storage In a typical desktop virtualization solution, low-spec thin client computers replace desktop computers. The server handles even the data storage.

A company has contracted a remote data center to offer exclusive access to the platform as a service resource to its internal business users. How would such a cloud solution be classed?

As a private deployment model

Multiple companies working together on a contract for an extended time decide that resources in a single cloud platform would work best during the project's duration. What cloud type do the companies utilize?

Community cloud A community cloud is where several organizations share the costs of either a hosted private or fully private cloud.

Rapid elasticity refers to the cloud computing system's ability to do what?

Handle changes to demand in real time.

Multiple host servers exist on-premise and in the cloud for a manufacturing company. Users receive a warning that files are not saved during log-off when using a computer session hosted by these servers. What type of service does the manufacturing company use?

DaaS Provisioning a virtual desktop infrastructure (VDI) as a cloud service is often referred to as desktop as a service (DaaS). A technician can lock down virtual images in this environment to always use a fresh image.

Users at an organization would like to have access to their work data when not connected to the internet. What type of service should IT configure for the users?

File synchronization File synchronization allows users to have a mirrored copy of their data on any number of devices.

Cloud service providers should ensure that they meet the criteria for reliable and responsive cloud delivery characteristics, such as metered utilization, rapid elasticity, and high availability. What other criteria should cloud service providers meet?

File synchronization One of the advantages of cloud storage is automated file synchronization between different devices, such as a PC and smartphone.

With cloud computing, organizations can expand resources as needed. Services expand rapidly with virtualization through metered utilization using a paid cloud service provider, allowing access to increased resources. What are some of the other benefits the cloud provides? (Select all that apply.)

High availability High availability (HA) is a requirement for short periods of downtime, typically due to planned maintenance and unscheduled outages. Scalability Scalability is the cost of supplying the cloud services based on the number of users receiving the service. The benefit for an organization is it can scale up or down services based on the need. Elasticity Rapid elasticity is the cloud service provider's ability to handle changes to demand in real-time. Systems with high elasticity will be less affected in changes to service or performance when scaling up services.

An IT administrator at a large company receives an alert that disk usage for a cloud-based service is over an established data transfer quota. Which service does the company utilize that triggers such an alert?

Metered utilization The end-user is interested in and pays for only the services provided by the cloud. The per-use billing for resources consumed by the cloud is metered utilization.

A cloud service provides a billing dashboard that reports a virtual machine's uptime, disk usage, and network bandwidth consumption. What characteristic does this demonstrate?

Metered utilization The per-use billing for resources consumed by the cloud is known as metered utilization. The metering measurement is from resources such as storage, processing, bandwidth, or active users.

After establishing a free account online, users can use a cloud-based mapping software for free. What type of cloud service is the mapping software an example of?

Public cloud A public (or multitenant) cloud is a service offered over the internet by cloud service providers (CSPs) to cloud consumers, often referred to as tenants.

Which cloud service model allows for deploying a network of virtual machines running configured web servers, scripting environments, database software, and storage networks?

PaaS Platform as a service (PaaS) provides resources somewhere between SaaS and IaaS and deploys unconfigured servers, storage network infrastructure, and multitier web/database platforms on top.

Which type of cloud model provides a scaffold for a business to develop, deploy, and run applications without having to run and maintain the underlying foundation?

PaaS Platform as a service (PaaS) provides resources somewhere between SaaS and IaaS and deploys unconfigured servers, storage network infrastructure, and multitier web/database platforms on top.

What on-demand cloud computing feature does metered utilization provide?

Per-use billing for resources consumed The per-use billing for resources consumed by the cloud is known as metered utilization. The metering measurement is from resources such as storage, processing, bandwidth, or active users.

What cloud service type does a company subscribe to when there is a need for a backend database server for an online application?

Platform as a service (PaaS) Platform as a service (PaaS) provides resources between SaaS and IaaS. A typical PaaS solution deploys servers and storage network infrastructure (as per IaaS) and provides a multi-tier web application/database platform.

An organization moves its sales and marketing operations to the cloud. Unlike the organization's website, these systems are for internal use only. On what type of cloud model does the sales and marketing system operate?

Private A private cloud is a cloud infrastructure that is completely private to and owned by the organization. There is likely to be one business unit dedicated to managing the cloud while other business units use it.

What type of cloud service does a company establish for its employees only?

Private cloud A private cloud is a cloud infrastructure that is completely private to and owned by the organization. There is likely to be one business unit dedicated to managing the cloud while other business units use

A manufacturer sells home repair goods through its online portal. Sales often skyrocket when demand is high due to storms and other phenomena. Due to the unpredictable nature of sales, what service does the manufacturer have in place to handle changing service levels?

Rapid elasticity Rapid elasticity refers to the system's ability to handle changes to demand in real-time. A system with high elasticity will not experience loss of service or performance if demand suddenly doubles.

A web hosting company is home to many company websites. The model is such that a single server can host roughly five small low-traffic websites without changing the configuration. What service type does the web hosting company offer with these sites?

Shared resources Pooling shared resources means that the hardware making up the cloud provider's data center is not dedicated or reserved to a single customer account.

An engineer decommissions an on-premises email server as all email functionality is now a cloud subscription service. What type of cloud service does the email utilize?

Software as a service (SaaS) Software as a service (SaaS) is a model of provisioning software applications. Rather than purchasing software licenses, a business would access software hosted on a supplier's servers on a pay-as-you-go arrangement.

When users connect to the network, they use a basic hardware terminal to access a desktop hosted on a server. What structure is the user deploying?

VDI Virtual desktop infrastructure (VDI) refers to the use of virtual machines (VMs) to provision corporate desktops. Low-spec thin client computers replace desktop computers in a typical desktop virtualization solution.