Computer Network 13.7.4

What type of resources offer the following advantages? Flexibility of access Ease of use Self-service provisioning of resources API availability Metering of services Ability to try out software applications

Cloud

Cloud resources are implemented in several ways. Match the cloud implementations listed on the left with the appropriate descriptions on the right. (Each implementation type may be used once, more than once, or not at all.)

Designed to be shared by several organizations - Community cloud Examples: Gmail and Google Docs - Public cloud Provides resources to a single organization - Private cloud Accessible to everyone - Public cloud Accessible only by users within the single organization - Private cloud

What are the main types of cloud services? (Select two.)

Internal cloud services External cloud services

In reference to cloud computing, what does the term cloud mean?

It is a metaphor for the internet based on the basic cloud drawing used to represent the telephone network.

Cloud resource service models include Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). Match each service model listed on the left with the appropriate description on the right. (Each service model may be used once, more than once, or not at all.)

Provider delivers everything a developer needs to build an application - PaaS Providers deliver processing, storage, networks, and virtualized environment services - IaaS Clients deploy and run software without purchasing servers, data center space, or network equipment - IaaS Provider delivers applications to the client either over the internet or on a local area network - SaaS Client avoids the cost and complexity of buying and managing the underlying hardware and software layers - PaaS

The National Institute of Standards and Technology (NIST) has established five characteristics that a true cloud service must have. Match each characteristic to its description.

Seamlessly increasing and decreasing resources as needed - Rapid elasticity The service needs to be provided over a network and be available in multiple platforms - Broad network access Resources can be controlled and optimized automatically - Measured service On-demand self service users must be able to dynamically obtain resources - On-demand self service Multiple resources can be used by multiple users and can scale dynamically - Resource pooling

When additional resources are needed on a virtual machine, the hypervisor increases available resources up to the maximum set amount. What is this process called?

Thin provisioning

Cloud services can also offer virtual network infrastructures, which include a variety of virtual components. Match each virtual component on the left with the appropriate description on the right. (Each component may be used only once.)

Uses Ethernet standards to transmit and receive frames on the network - Virtual network interface Implemented within the hypervisor to monitor and filter traffic on the virtual network as it flows between virtual machines - Virtual Firewall Can be defined within the virtual switch and associated with specific hosts - Virtual Vlan Can support multiple networks on each of its interfaces, unlike the physical version - Virtual router Builds a table that identifies which MAC addresses are connected to each of its ports - Virtual switch

Which of the following solutions can help with security when you are implementing an external cloud service?

VPN

Which of the following allows multiple virtual machines to exist on the same physical machine and share its underlying physical resources?

Virtualization