Select the sequence for how the query mechanism works?

Solution (By Examveda Team)

This question is about how MySQL processes a query. Let's break it down:
Authentication: Before you can even run a query, MySQL needs to verify who you are. This is like a security check to make sure you're allowed to access the database.
DDL (Data Definition Language): This is the language you use to define the structure of your database. It's like creating the blueprints for your tables.
DML (Data Manipulation Language): This is the language you use to interact with the data in your tables. Think of it like adding, deleting, or changing information in those blueprints.
Query Optimizer: This is a smart part of MySQL that takes your query and figures out the most efficient way to get the data you're asking for. It's like a traffic controller making sure the data flow smoothly.
Output: Finally, you get the results of your query!
So, the correct sequence is:
Authentication -> DDL -> DML -> Query Optimizer -> Output
Therefore, the answer is Option A.