The FREE Cybersecurity Glossary by Thor Pedersen!

Dynamic Partitioning: In computing, it's a method of dividing a hard drive or a database into segments that can be easily modified in size. This allows for the efficient use of space and resources by allocating and deallocating partitions as needed, without the need for a static predefined partition size. Dynamic partitioning can improve performance and flexibility for both storage and memory management in operating systems and database management systems. It enables the system to adapt to changing workloads and data requirements dynamically.

Dynamic Ports: Also known as private or ephemeral ports, these are network ports assigned on an as-needed basis by a host's operating system for client-side TCP or UDP communications. They are typically used for short-term communication sessions when a client initiates a communication session with a server, after which the port is released for reuse. Dynamic ports range from 49152 to 65535 according to IANA (Internet Assigned Numbers Authority) standards.

Eastbound Interface API: In networking, an Eastbound Interface API refers to the application programming interface that enables communication and data exchange from a network controller to higher-level management systems or applications. It supports the upward flow of network information, such as topology details or traffic statistics, which can be used for analytics, policy decision-making, network optimization, or orchestrating services across the network. In Software-Defined Networking (SDN) environments, the Eastbound API allows the SDN controller to interact with more abstract layers, like service management platforms or business logic applications.

East-West APIs: These APIs facilitate internal communications and data exchange between services and applications within an organization's IT infrastructure. Focused on optimizing the flow of information within the data center, East-West APIs are crucial for microservices architectures and containerized applications, where a high volume of internal traffic is common.

Eavesdropping: A method where unauthorized individuals listen to, monitor, or intercept others' private conversations, data transmissions, or communications without consent. Eavesdropping can happen in various forms, such as wiretapping telephone lines, accessing email communications, or sniffing network packets. It's a primary concern in the world of communication and data transmission as it could lead to the leakage of confidential or sensitive information.

Echo checks: A simple error detection technique used in data communication to verify the integrity of transmitted data. In echo checks, a copy of the transmitted data is sent back to the sender for comparison with the original data. This method helps ensure that the data received is identical to what was sent, thereby maintaining the reliability and integrity of data transmissions.