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WAN (wide area network)

Definition | searchEnterpriseWAN

A wide area network (WAN) is a geographically distributed telecommunications network that interconnects multiple local area networks (LANs).

WAN optimization (WAN acceleration)

Definition | SearchEnterpriseWAN

WAN optimization, also known as WAN acceleration, is the category of technologies and techniques used to maximize the efficiency of data flow across ...

WAN accelerator

Definition | SearchEnterpriseWAN

A WAN accelerator is an appliance that improves the end user's experience on a wide area network (WAN).

SD-WAN (software-defined WAN)

Definition | SearchSDN

Software-defined WAN (SD-WAN) is a technology to distribute network traffic across wide area networks (WAN) that uses software-defined networking (...

enterprise WAN

Definition | SearchEnterpriseWAN

An enterprise WAN is a corporate network that connects geographically dispersed users areas that could be anywhere in the world.

hybrid WAN

Definition | SearchNetworking

A hybrid WAN is a wide area network that sends traffic over two or more connection types. Hybrid WANs permit dynamic traffic engineering across both ...

WAN interface card (WIC)

Definition | SearchEnterpriseWAN

A WAN interface card, or WIC, is a specialized network interface card (NIC) that allows devices to connect to a wide area network.

wireless WAN (Wireless Wide Area Network)

Definition | SearchEnterpriseWAN

A wireless WAN is a wide area network in which separate areas of coverage or cells are connected wirelessly to provide service to a large geographic ...

WAN clustering (geoclustering, high-availability clustering or remote clustering)

Definition | SearchEnterpriseWAN

WAN clustering, also called geoclustering, high-availability clustering or remote clustering, is the use of multiple redundant computing resources ...

SWAN (state wide area network)

Definition |

In India, SWAN is a government-subsidized project to create a state wide area network (WAN) that will improve government efficiency.



  • risk map (risk heat map)

    A risk map, also known as a risk heat map, is a data visualization tool for communicating specific risks an organization faces. A...

  • internal audit (IA)

    An internal audit (IA) is an organizational initiative to monitor and analyze its own business operations in order to determine ...

  • pure risk (absolute risk)

    Pure risk, also called absolute risk, is a category of threat that is beyond human control and has only one possible outcome if ...


  • federated identity management (FIM)

    Federated identity management (FIM) is an arrangement that can be made among multiple enterprises to let subscribers use the same...

  • cross-site scripting (XSS)

    Cross-site scripting (XSS) is a type of injection security attack in which an attacker injects data, such as a malicious script, ...

  • firewall

    In computing, a firewall is software or firmware that enforces a set of rules about what data packets will be allowed to enter or...



  • business continuity and disaster recovery (BCDR)

    Business continuity and disaster recovery (BCDR) are closely related practices that describe an organization's preparation for ...

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • call tree

    A call tree -- sometimes referred to as a phone tree -- is a telecommunications chain for notifying specific individuals of an ...


  • all-flash array (AFA)

    An all-flash array (AFA), also known as a solid-state storage disk system, is an external storage array that uses only flash ...

  • volume manager

    A volume manager is software within an operating system (OS) that controls capacity allocation for storage arrays.

  • external storage device

    An external storage device, also referred to as auxiliary storage and secondary storage, is a device that contains all the ...


  • hybrid hard disk drive (HDD)

    A hybrid hard disk drive is an electromechanical spinning hard disk that contains some amount of NAND Flash memory.