Standard response codes given by website servers on the Internet, helping to identify the cause of any issues.

"Common HTTP status codes include 404 for 'Not Found' and 200 for 'OK', indicating the request's success or failure."

A cognitive bias that involves an over-reliance on a familiar tool or method, ignoring or underestimating alternative approaches.

"When you have a golden hammer, everything looks like a nail, which can lead to suboptimal solutions if the tool isn't appropriate for the task."

An open-source distributed computing system designed for processing large-scale data sets, providing high-level APIs in languages like Java, Scala, and Python.

"The data science team used Spark for big data processing and analysis."

In programming, a type relationship where a type can be used in place of another type if it is a supertype of that type, opposite of covariance.

"Contravariance is often used in the context of function argument types, where a function can accept arguments of a more generic type than specified."

An abstract computing machine that enables a computer to run a Java program.

"The JVM interprets Java bytecode into machine language, allowing Java programs to run on any platform without needing to be recompiled."