CIS 317 Quiz 3 Solved With Complete Solutions.

cloud computing evolutionary product of the Internet and its growth encompasses all aspects of the ICT infrastructure architecture as well as systems, analysis and design, application development, and database management. hosted applications has been around since the beginning of the Internet and were referred to as client server computing. a client is used to access the hosted application, giving users access to remote servers Service-oriented architecture (SOA) reusing services across a network. designing applications to use a loosely coupled set of services that interact to provide the application. all about system design principles Software as a service (SaaS) software on demand. about software designed to be delivered over the internet or from behind the firewall on a LAN According to Gartner cloud computing must be be service based, scalable and elastic, shared, pay as you use, internet based technologies Service Based the person using/buying the service is not concerned with how the service is delivered, but rather concerned with the correct functioning of the service(what the service NEEDS to do) Scalable and Elastic service can scale capacity up or down as the consumer demands change and can do it a the speed of full automation, which may be seconds for some services and hours for others. ability to adapt and continue to provide services as the demand for its service increases Shared Resources the underlying infrastructure software, or platforms are shared among the consumers of the service, enabling unused resources to serve multiple needs for multiple consumers and all working at the same time Metered by use pay as you go plans, subscriptions, fixed plans, and even free plans. the implied payment plans will be based on usage, not on the cost of the equipment Uses Internet Technologies service is delivered using Internet identifiers, formulas, and protocols, such as URL's, HTTP, IP, and representational state transfer web-oriented architectures. In order to be considered cloud computing (Balmer) scaling, fault tolerance, geo-replication, and security Fault Tolerance system able to continue to perform even under a failure geo-replication designed to improve the distribution of data across geographically distributed networks security exists at the physical and IS levels. at the physical level the data center and the assets housed within it must be protected from intrusion and attempts at destruction. At the IS level policies and safeguards must exist that prevent unauthorized/or malicious attempts to change data or interrupt the functioning of the information system. private clouds networks (usually networks with some type of routing) that provides services or connectivity available to external users either directly connected to the cloud or via the internet. public cloud internet provides connectivity at a low cost per bit transmitted for a large number of users David Linthicum identified the following eleven cloud services Storage as a Service (Disk on demand) is the ability to leverage storage that physically exists at remote locations but logically appears as local storage to any application that requires storage. Database as a service allows developers and consumers to use database services of a provider on a "pay as you go" basis, rather than incur up front capital expenses to set up the servers and databases. (MS-SQL, MY-SQL, and Oracle) Information as a service refers to any cloud based service that provides an application programming interface or other similar method that allows an application to use/consumer information (credit card information) Process as a service supports business processes through combining other services to create metal applications. (S) Application as a service is any application that is delivered through a browser to an end user's PC. (Salesforce, Google Apps, Google Docs) Platform as a service is a subscriber based service delivered to customers. it typically includes application, interface, and database development, along with storage, testing, and other technologies. delivers its services from cloud-based hosted data centers. (Red Hat) Integration as a service includes the features traditionally found in enterprise application integration but delivered as a service. offers solutions and services that assist companies in their quest to integrate in house and cloud based solutions (Snaplogic, Boomi, and cast iron systems) Security as a service virus defense, firewall management, and email filtering as well as sophisticated services like identity management offered through directory services, which provide cyber security via cloud offerings (A) Management as a service refers to any "on-demand service that provides the ability to manage one or more cloud services. these are typically things such as typology, resource utilization, virtualization, and uptime management. (Government systems are starting to enforce policies) (Softchoice company is an example which offers IT Asset Management as a service Testing as a service providers offer the ability to test applications through cloud delivered testing algorithms that can test web sites, applications, and other software that do not require an on-premise footprint to carry out the testing.(Hewlett-Packard) Infrastructure as a service refers to actually having a data center as a service. place servers in someone else's data center. (or lease a server from the data center). the service is often referred to as dedicated hosting. (Go Daddy and Lunarpages) Azure is cloud computing platform that provides the technical infrastructure so an organization can "focus on solving business problems and addressing customer needs". is a development platform and environment that allows organizations to develop web services or applications. Windows Azure provides a windows based environment for running applications and storing data in Microsoft data centers located in the cloud. this is a remote windows session hosted in a Microsoft data center. SQL Azure provides data services in the cloud based on Microsoft SQL Server. this is a remote service, consumed by the user/consumer, and all infrastructure for the SQL server is in a Microsoft data center. Azure Platform AppFabric provides cloud services for connecting applications running in the cloud or on premises. provides access control through on premises enterprise directories like Microsoft Active Directory, or web based identity providers like Windows Life. Sopima is a softwar