CA (Certificate Authority)The link that allows a server and client to communicate. A CA vouches for the identity of a server and client by issuing certificates stamped with the…
CA CertificateThe CA's certificate. This certificate is used to verify signature on certificates issued by the CA.
CA Signing PolicyThe CA signing policy is used to place constraints on the information you trust a given CA to bind to public keys.
canned access policyA standard access control policy that you can apply to a bucket or object. Options include: private, public-read, public-read-write, and…
Canonical Name Record (CNAME)A type of resource record in the Domain Name System (DNS) that specifies that the domain name is an alias of another, canonical domain name.
canonicalizationThe process of converting data into a standard format that a service such as Amazon S3 can recognize.
CapacityYour ability to make your mortgage payments on time. This depends on your income and income stability (job history and security), your assets and savings…
Capacity on DemandProcessing power that is available as needed in a timely manner without disrupting other business priorities.
capacity planningThe process of determining which one of the 12 million potential configuration options on AWS a user should choose to optimize operations.
CascadingCascading is an open-source Java library that provides a query API, a query planner, and a job scheduler for creating and running Hadoop MapReduce…
Catastrophe TheoryA special branch of dynamical systems theory that studies and classifies phenomena characterized by sudden shifts in behavior arising from small changes…
clientAny computer system that requests a service of another computer system. A workstation requesting the contents of a file from a file server is a client of…
client-config.wsddAxis client-side WSDD configuration file. It contains information about the type mappings, the transport and other handlers.
client/server transferIn a client/server transfer, there are only two entities involved in the transfer, the client entity and the server entity.
cloud appa software application that is never installed on a local machine - it's always accessed over the Internet.
cloud arcsshort for cloud architectures. Designs for software applications that can be accessed and used over the Internet.
Cloud as a Service (CaaS)a cloud computing service that has been opened up into a platform that others can build upon.
cloud bridgerunning an application in such a way that its components are integrated within multiple cloud environments (which could be any combination of…
cloud clientcomputing device for cloud computing. Updated version of thin client.
cloud computingProvides users access to IT-related capabilities (infrastructure and/or applications) "as a service" without regard for the underlying technology or…
Cloud EnablerA general term that refers to organizations (typically vendors) who are not cloud providers per se, but make available technology, such as cloudware, that…
cloud envyused to describe a vendor who jumps on the cloud computing bandwagon by rebranding existing services.
Cloud PortabilityThe ability to move applications (and often their associated data) across cloud computing environments from different cloud providers, as well as across…
Cloud ProviderAn organization that makes a cloud computing environment available to others, such as an external or public cloud.
cloud serverA "server" is simply an operating system leveraging the pool of CPU and Ram resources available from the underlying physical hardware also referred to as…
Cloud Service Architecture (CSA)A term coined by Jeff Barr, chief evangelist at Amazon Web Services. The term describes an architecture in which applications and application components…
Cloud SpanningRunning an application in a way that its components straddle multiple cloud environments (which could be any combination of internal/private and…
cloud storagejust what it says) Sometimes compared to leasing a car - you'll have monthly payments but hopefully you'll always have the lastest/greatest technology.
Cloud-Oriented Architecture (COA)An architecture for IT infrastructure and software applications that is optimized for use in cloud computing environments.
cloudburstwhat happens when your cloud has an outage or security breach and your data is unavailable.
Cloudburst (negative)The failure of a cloud computing environment due to the inability to handle a spike in demand.
Cloudburst (positive)The dynamic deployment of a software application that runs on internal organizational compute resources to a public cloud to address a spike in demand.
cloudcentera large company, such as Amazon, that rents its infrastructure.
CloudFormationAllows developers and systems administrators to easily create and manage a group of related AWS resources by provisioning and updating them in an…
CloudsourcingLeveraging services in the network cloud to provide external computing capabilities, often to replace more expensive local IT capabilities.
cloudstormconnecting multiple cloud computing environments. Also called cloud network.
CloudstormingThe act of connecting multiple cloud computing environments.
CloudwareA general term referring to a variety of software, typically at the infrastructure level, that enables building, deploying, running or managing…
CloudWatchA tracking service which allows developers and administrators to minitor resource utilization, application performance, and operational health.
cluster compute instanceA type of instance that provides a great amount of CPU power coupled with increased networking performance, making it well suited for High Performance…
Cluster InterconnectA very high-speed connection allowing nodes in a cluster to communicate.
cluster placement groupA logical cluster compute instance grouping to provide lower latency and high-bandwidth connectivity between the instances.
ClusteringConnecting two or more computers together in such a way that they appear to be a single computing resource.
co-brandingRunning a business logo on a site or service that another company provides. Co-branding with Amazon Simple Pay, for example, is merely adding an…
command line interface (CLI)A software product that allows the user to type in commands at a prompt. Contrast to forms interface.
command/responseBoth FTP and GridFTP are command/response protocols. What this means is that once a client sends a command to the server, it can only accept responses…
Commercial Enterprise ApplicationA class of enterprise application which usually exhibits some of the following attributes: Multi-tier architecture.
Compute ElementA physical grid component that is a general purpose computer, such as a server. See also: Grid Component
compute unitA compute unit is measurement tool used to compare and contrast different virtual servers (instances).
concurrencyPart of an acquisition strategy which combines or overlaps two or more phases of the acquisition process, or combines development T&E with operational T&E.
CondorA job scheduler mechanism supported by GRAM. See http://www.cs.wisc.edu/condor/ for more information.
consistency modelThe method a service uses to achieve high availability. For example, it could involve replicating data across multiple servers in a data center.
consistent readWhen data is written or updated successfully, all copies of the data are updated in all AWS regions.
ConsoleA scroll-shaped projecting bracket that supports a horizontal member.
ConsolidateOne of the three steps recommended by Oracle to help data centers move to a Grid Computing architecture.
ContainerIn the Exchange Administrator program, an object that contains other objects. For example, the Recipients container is composed of recipient objects.
control channelThe Communication link (TCP) over which commands and responses flow. Low bandwidth; encrypted and integrity protected by default.
Control TheoryThe mathematical analysis of the systems and mechanisms for achieving a desired state under changing internal and external conditions.
cooldown periodAmount of time during which Auto Scaling does not allow the desired size of the Auto Scaling group to be changed by any other notification from a…
core nodeAn EC2 instance that runs Hadoop map and reduce tasks and stores data using the Hadoop Distributed File System (HDFS).
credentialsAlso called access credentials or security credentials. In authentication and authorization, a system uses credentials to identify who is making a call…
customer gatewayA router or software application on your side of a VPN tunnel that is managed by Amazon VPC.
CyberneticsA term derived from the Greek word for "steersman" that was introduced in 1947 to describe the science of control and communication in animals and…