CREST Practitioner Security Analyst (CPSA) Practice

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Port 3306 is the default port for which database?

PostgreSQL
MySQL
SQLite
MongoDB

The correct answer is: MySQL

Port 3306 is the default port for MySQL, which is a widely used open-source relational database management system. It serves as the standard network port for the MySQL server to listen for incoming connections from clients. This convention has been established to facilitate communication between applications and databases, allowing users and applications to connect to MySQL instances reliably. In contrast, the other databases mentioned utilize different default ports. PostgreSQL, for example, typically uses port 5432, while SQLite operates as a file-based database and does not have a designated port since it runs as a library within the application itself. MongoDB defaults to port 27017. Understanding these defaults is important for network configuration, database administration, and ensuring secure access to database services.