Final answer:
Protocol SQL belongs to the Application layer in both the DOD Model and the OSI Model. The Port number for SQL is 1433. SQL stands for Structured Query Language and is used for managing and manipulating relational databases.
Step-by-step explanation:
The correct answer is:
In the DOD Model, Protocol SQL belongs to the Application layer. In the OSI Model, it also belongs to the Application layer.
The Port number for SQL is 1433.
SQL stands for Structured Query Language. It is a programming language specifically designed for managing and manipulating relational databases.
SQL is used for various functions, including creating, updating, and querying databases. It allows users to interact with databases to perform operations such as inserting data, retrieving data, updating data, and deleting data.