An overview of all technical terms
| Data center: | Hosts IT systems and network infrastructure. |
|---|---|
| Data Link Layer: | Second layer of the OSI model responsible for transferring data frames between directly connected devices within a network. |
| Data link layer: | Lowest layer of the OSI model responsible for the physical transmission of bits across wired or wireless transmission media. |
| Data Loss Prevention: | Prevents the loss of sensitive data. |
| Data Loss Prevention (DLP): | Security approach for detecting and preventing the unauthorised disclosure, transfer or loss of sensitive business data. |
| Data Security: | Protects data from loss, manipulation, and unauthorized access. |
| Database Server: | Server for centrally storing, managing and providing structured data to applications, systems and users. |
| DDoS Attack: | Cyberattack in which numerous systems simultaneously overload an IT infrastructure with requests or network traffic, affecting its availability. |
| Dedicated Internet Access (DIA): | Business internet connection with dedicated bandwidth and typically symmetrical transmission speeds for reliable enterprise networks. |
| Device Control: | Controls access to connected devices. |
| DHCP Snooping: | Protects networks from unauthorized DHCP servers. |
| DHCPv6: | Network protocol for automatically assigning IPv6 addresses and additional network configuration information to devices in IPv6 networks. |
| Digital Media Player (DMP): | Refers to a platform for managing data. |
| Disaster Recovery: | Describes the recovery of IT systems after failures. |
| Disaster Recovery as a Service (DRaaS): | Provides IT disaster recovery as a cloud service. |
| Dispersion Compensation Units (DCU): | Optical components that compensate for signal distortion in fibre optic links and maintain transmission quality. |
| Domain Name System (DNS): | Translates domain names into IP addresses. |
| Domain Name System Security Extensions (DNSSEC): | Security extension for the Domain Name System that verifies the authenticity and integrity of DNS data using digital signatures. |
| Dual Inline Memory Module (DIMM): | Memory module form factor used for RAM in servers, workstations and desktop systems. |
| Dynamic Host Configuration Protocol (DHCP): | Network protocol for the automatic assignment of IP addresses and configuration data to end devices. |