1. Question: What are the main components of MySQL architecture?
- Answer: The key
components of MySQL architecture include the MySQL Server, Storage Engines, and
the MySQL Connector that enables communication with client applications.
2. Question: Explain the role of the MySQL Server.
- Answer: The MySQL
Server is the core component that manages the database. It handles tasks such
as query processing, storage management, security, and communication with
client applications.
3. Question: What is a Storage Engine in MySQL, and why is
it important?
- Answer: A Storage
Engine in MySQL is responsible for handling the storage and retrieval of data.
MySQL supports multiple storage engines, such as InnoDB and MyISAM, each with
its own features and capabilities.
4. Question: What is the purpose of the MySQL Query Cache?
- Answer: The MySQL
Query Cache is a mechanism that stores the results of SELECT queries in memory.
If the same query is executed again, MySQL can retrieve the result from the
cache, reducing the need to reprocess the query.
5. Question: Explain the MySQL InnoDB storage engine.
- Answer: InnoDB is
a transactional storage engine in MySQL. It supports features like ACID
compliance, foreign key constraints, and row-level locking. It is the default
storage engine for MySQL.
6. Question: What is the MySQL Data Directory?
- Answer: The MySQL
Data Directory is the location on the file system where MySQL stores its
databases, tables, and other data-related files. It is specified during the
installation of MySQL.
7. Question: How does MySQL handle authentication and user
privileges?
- Answer: MySQL
uses a combination of username/password authentication and host-based access
control. User privileges are defined to control what actions users can perform
on databases and tables.
8. Question: What is the purpose of the MySQL Binary Log?
- Answer: The MySQL
Binary Log is used for replication and point-in-time recovery. It records
changes made to the database so that they can be replayed on a replica or used
for recovery.
9. Question: Explain the role of the MySQL Query Optimizer.
- Answer: The MySQL
Query Optimizer analyzes SQL queries and determines the most efficient way to
execute them. It considers factors such as indexes and statistics to generate
optimal execution plans.
10. Question: What is the significance of the MySQL
Connection Pool?
- Answer: The
MySQL Connection Pool is a mechanism that manages and reuses database
connections to improve performance. It reduces the overhead of establishing a
new connection for each client request by reusing existing connections from the
pool.
