A database in which portions of the database are stored on multiple computers within a network. Users have access to the data relevant to their tasks without interfering with the work of others.

A centralized application that manages a distributed database as if it were all stored on the same computer. The DDBMS synchronizes all the data periodically.

A client/server-based application that allows clients to access and process data stored on the server as if it were on their own computer. 

A general term used to describe a multi-media method of instructional delivery that includes a mix of Web-based instruction, streaming video conferencing, face-to-face classroom time, distance learning through television or video.

A Linux-based software component that facilitates the replacement of shared storage systems by networked mirroring. DRBD maintains consistency of data among multiple systems in a network, and it ensures high availability (HA) for Linux applications.

A search engine model in which the tasks of Web crawling, indexing and query processing are distributed among multiple computers and networks.

A distributed system is a collection of autonomous computers, connected through a network and distribution middleware, which enables computers to coordinate their activities and to share the resources of the system, so that users perceive the system as a single, integrated computing facility.

In HTML, the div elements are used for generic organizational or stylistic applications. A div is a block-level element that visually isolates a section of a document on the page, in the same way as a paragraph.

An open source web application framework, written in Python, which follows the model–view–controller architectural pattern. The core Django MVC framework consists of an object-relational mapper.

Dynamic Logical Partitioning (DLPAR) provides the ability to logically attach and detach a managed system's resources to and from a logical partition without rebooting the operating system that runs in the LPAR. DLPAR enables memory, CPU capacity, and I/O interfaces to be moved nondisruptively between LPARs within the same server.

D-Link Network Associate (DNA) by D-Link

The corruption of an Internet server's DNS table by replacing an Internet address with that of another, rogue address. When a Web user seeks the page with that address, the request is redirected by the rogue entry in the table to a different address. 

An exploit in which the attacker uses JavaScript in a malicious Web page to gain control of the victim's router. The attack works on widely-used routers such as D-Link and Linksys.

The controversial practice of serving a Web page to a user that is different from either the one requested or one that might reasonably be expected, such as an error page. 

A set of Internet Engineering Task Force (IETF) standards created to address vulnerabilities in the DNS and protect it from online threats. The purpose is to increase the security of the Internet as a whole by addressing DNS security weaknesses. 

A SAAS/Cloud platform for e-learning, also known as a learning management system.