4.1 Cloud-computing concepts Flashcards
Summarize cloud-computing concepts
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?
-IaaS
-PaaS
-DaaS
-VDI
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.
~VDI in the cloud is also known as a desktop as a service (DaaS).
~A typical platform as a service (PaaS) deploys servers and storage network infrastructure like IaaS and provides a multi-tier web application/database platform on top of Software as a Service (SaaS).
~Infrastructure as a service (IaaS) is a means of provisioning IT resources, such as servers, load balancers, and storage area network (SAN) components, quickly.
In a virtual desktop infrastructure, what client functionality does a server handle? (Select all that apply.)
-Screen Display
-Data storage
-Remote connection
-Application processing
Data storage & Application processing
*In a typical desktop virtualization solution, low-spec thin client computers replace desktop computers. The server handles even the data storage.
*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).
~In a virtual desktop infrastructure (VDI) environment, the user connects to the VM using some sort of remote desktop protocol, such as Microsoft Remote Desktop or Citrix ICA.
~In a desktop virtualization environment, the thin client computer need only be powerful enough to display the screen image, play audio, and transfer mouse and key commands.
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
-Public cloud
-Hybrid cloud
-Private cloud
Community Cloud
*A community cloud is where several organizations share the costs of either a hosted private or fully private cloud.
~Hybrid is a cloud computing solution that implements some sort of hybrid public/private/community.
~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.
~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.
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.)
-Data control
-Scalabilty
-Elasticity
-High availability
Scalability, Elasticity, & High availability
*High availability (HA) is a requirement for short periods of downtime, typically due to planned maintenance and unscheduled outages.
*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.
*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.
~Data control is not a benefit of cloud computing; in most cases, data can be spread across multiple data centers and is regularly not on-site.
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
-Public
-Community
-Hybrid
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.
~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.
~A community cloud is where several organizations share the costs of either a hosted private or fully private cloud.
~Hybrid is a cloud computing solution that implements some sort of hybrid public/private/community.
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
-Metered utilization
-High availability
-Rapid Elasticity
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.
~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.
~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.
~High availability (HA) means that the service experiences very little downtime. For example, a service with “Five Nines” or 99.999% availability experiences only 5 minutes and 15 seconds annual downtime.
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?
-Shared resources
-High availability
-Metered utilization
-Rapid Elasticity
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.
~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.
~High availability (HA) means that the service experiences very little downtime. For example, a service with “Five Nines” or 99.999% availability experiences only 5 minutes and 15 seconds annual downtime.
~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.
Rapid elasticity refers to the cloud computing system’s ability to do what?
-Provide per-use billing for resources consumed by the cloud
-The service experiences very little downtime
-Achieve pooling of shared resources
-Handle changes to demand in real time
Handle changes to demand in real time
*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 or more.
~To meet availability, scalability, and elasticity requirements, cloud providers must provision, and de-provision resources shared automatically.
~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.
~High availability means that the service experiences very little downtime. Downtime can occur as a result of scheduled maintenance and unexpected outages.
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?
-Data storage
-File syncronization
-File sharing
-Resource sharing
File synchronization
*One of the advantages of cloud storage is automated file synchronization between different devices, such as a PC and smartphone.
~A server disk configured to allow clients to access it over the network is a file share. Multiple users can simultaneously access the content to work collaboratively or access it at different times.
~Resource sharing is implemented by network protocols using a client or server architecture.
~The server performs data storage on a virtual desktop environment (VDE) or workspace and is part of the application processing, not a cloud characteristic.
Which cloud service model allows for deploying a network of virtual machines running configured web servers, scripting environments, database software, and storage networks?
-SaaS
-PaaS
-IaaS
-DaaS
PaaS (Platform as a Service)
*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.
~Desktop as a service (DaaS) provisions a virtual desktop infrastructure (VDI) as a cloud service that would deploy the applications and run them to use on a thin computer client.
~Infrastructure as a service (IaaS) would only provide the VMs, network, and other components without the software.
~Software as a service (SaaS) provisions (runs) software applications rather than purchasing software licenses and would have the web servers/databases unconfigured.
Which of the following describes a strategic advantage of moving to a private cloud? (Select all that apply.)
-Make a blend of public and private cloud services with orchestration between them for employees and management.
-A cloud architecture is maintained and managed within an enterprise data center.
-A cloud service where several organizations share the costs and pool resources for a common concern.
-Organizations can exercise greater control over the privacy and security of their services.
*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.
*A private cloud is an entirely private cloud infrastructure owned by the organization that requires strict access control in its operations.
*Private cloud service allows the organization to exercise greater control over their services’ privacy and security, keeping sensitive or regulated infrastructure, applications, and data on-premises.
~A community cloud is where several organizations share the costs of either a hosted private or fully private cloud to pool resources for a common concern.
~A blend of public and private and community cloud services with orchestration between them is a hybrid cloud service.
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?
- Platform as a Service (PaaS)
-Anything as a service (XaaS)
-Software as a service (SaaS)
-Infrastructure as a service (IaaS)
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.
~Infrastructure as a service (IaaS) is a means of provisioning IT resources, such as servers, load balancers, and storage area network (SAN) components, quickly.
~Platform as a service (PaaS) provides resources between SaaS and IaaS. A typical PaaS solution would deploy servers and storage network infrastructure (as per IaaS) but also provide a multi-tier web application/database platform on top.
~Anything as a service (XaaS) refers to the many service offerings from a cloud provider and does not describe a particular service.
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?
-PaaS
-SaaS
-DaaS
-IaaS
IaaS (Infrastructure as a Service)
*Infrastructure as a service (IaaS) is a means of provisioning IT resources, such as servers, load balancers, and storage area network (SAN) components, quickly.
~Rather than purchasing software licenses, software as a service (SaaS) is a different model of provisioning software applications.
~Platform as a service (PaaS) provides resources somewhere between SaaS and IaaS. A typical PaaS solution would deploy servers and storage network infrastructure (as per IaaS) but also provide a multi-tier web application/database platform on top.
~Provisioning a virtual desktop infrastructure (VDI) as a cloud service is often referred to as desktop as a service (DaaS).
One type of cloud service allows the members of an organization to interact with the organization’s resources. What type of cloud service model is this?
-PaaS
-DaaS
-IaaS
-SaaS
IaaS (Infrastructure as a Service)
*Infrastructure as a service (IaaS) is a means of provisioning IT resources, such as servers, load balancers, and storage area network (SAN) components, quickly.
~Rather than purchasing software licenses, software as a service (SaaS) is a different provisioning software application.
~Platform as a service (PaaS) provides resources between SaaS and IaaS. A typical PaaS solution would deploy servers and storage network infrastructure (as per IaaS) but also provide a multi-tier web application/database platform on top.
~Provisioning a virtual desktop infrastructure (VDI) as a cloud service is often referred to as desktop as a service (DaaS).
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
-As a multitenant service
-As a hybrid deployment model
-As a Virtual Desktop Infrastructure
As a Private Deployment model
*Private is a cloud infrastructure that is completely private to and owned by the organization.
~Hybrid is a cloud computing solution that implements some hybrid public/private/community.
~When users connect to the network, they use a basic hardware terminal to access a desktop hosted on a virtualization server known as a virtual desktop infrastructure (VDI).
~Public (or multitenant) is a service offered over the internet by cloud service providers (CSPs) to cloud consumers, often referred to as tenants. With this model, a CSP can offer subscriptions or pay-as-you-go financing or even provide lower-tier services free of charge as a shared resource.
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?
-SaaS
-PaaS
-IaaS
-DaaS
IaaS (Infrastructure as a Service)
*Infrastructure as a service (IaaS) is a means of provisioning IT resources, such as servers, load balancers, and storage area network (SAN) components, quickly.
~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.
~Software as a service (SaaS) is a model of provisioning software applications. Rather than purchasing software licenses, a business accesses software on a supplier’s server on a pay-as-you-go arrangement.
~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.
What cloud service type does a company subscribe to when there is a need for a backend database server for an online application?
-IaaS
-SaaS
-DaaS
-PaaS
PaaS (platform as a Service)
*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.
~Software as a service (SaaS) is a model of provisioning software applications. Rather than purchasing software licenses, a business accesses software on a supplier’s server on a pay-as-you-go arrangement.
~Infrastructure as a service (IaaS) is a means of provisioning IT resources, such as servers, load balancers, and storage area network (SAN) components, quickly.
~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?
-Shared Resources
-High Availability
-Metered Utilization
-File Synchronization
File Synchronization
*File synchronization allows users to have a mirrored copy of their data on any number of devices. Data synchronization can occur across the cloud for files, email, contacts, and more.
~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.
~High availability (HA) means that the service experiences very little downtime. For example, a service with “Five Nines” or 99.999% availability experiences only 5 minutes and 15 seconds annual downtime.
~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 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?
-Hybrid
-Community
-Public
-Private
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.
~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.
~A community cloud is where several organizations share the costs of either a hosted private or fully private cloud.
~Hybrid is a cloud computing solution that implements some sort of hybrid public/private/community.
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?
-IaaS
-PaaS
-DaaS
-SaaS
DaaS (desktop as a Service)
*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.
~Infrastructure as a service (IaaS) is a means of provisioning IT resources, such as servers, load balancers, and storage area network (SAN) components, quickly.
~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.
~Software as a service (SaaS) is a model of provisioning software applications. Rather than purchasing software licenses, a business accesses software on a supplier’s server on a pay-as-you-go arrangement.
