IT Glossary & Dictionary

A class that defines a common interface for subclasses by declaring abstract methods that must be implemented.

A set of four properties (Atomicity, Consistency, Isolation, Durability) that guarantee reliable database transactions.

An extension to standard Linux file permissions that allows setting fine-grained access rights for specific users and groups beyond owner/group/other.

A software development methodology that emphasizes iterative development, collaboration, and rapid response to change.

A technique for making asynchronous HTTP requests from a web page without reloading the entire page.

A step-by-step procedure for solving a problem or performing a computation, defined as a finite sequence of instructions.

An agentless automation tool for configuration management, application deployment, and task automation using YAML playbooks.

A network routing technique where the same IP address is announced from multiple locations, directing users to the nearest server.

A set of rules and protocols that allows different software applications to communicate and exchange data.

The practice of designing application programming interfaces that are consistent, intuitive, and maintainable for developers to consume.

A server that acts as the single entry point for API requests, handling routing, authentication, rate limiting, and monitoring.

A strategy for limiting the number of API requests a client can make within a specified time window to protect server resources.

Practices and mechanisms for protecting APIs from unauthorized access, data breaches, and abuse.

A Linux security module that restricts program capabilities using per-application profiles, simpler to configure than SELinux.

A declarative GitOps continuous delivery tool for Kubernetes that automatically syncs cluster state with Git repositories.

A protocol that maps IP addresses to physical MAC addresses on a local network segment.

A packaged, versioned output of a build process — such as a Docker image, JAR file, or compiled binary — ready for deployment.

A centralized storage system for build artifacts like compiled binaries, packages, and container images used in CI/CD pipelines.

A Python library for writing concurrent code using async/await syntax for non-blocking I/O operations.

Automatically adjusting the number of computing resources based on current demand to maintain performance and optimize costs.

A powerful text processing language for extracting and manipulating structured data from files or command output.

The world's largest cloud computing platform, offering hundreds of services for compute, storage, networking, and more.

Microsoft's cloud computing platform offering IaaS, PaaS, and SaaS services for building, deploying, and managing applications.