1. Question: What is MariaDB?
- Answer: MariaDB
is an open-source relational database management system (RDBMS) that is a fork
of MySQL. It is developed by the original creators of MySQL and designed to be
highly compatible with MySQL while incorporating new features.
2. Question: How is MariaDB related to MySQL?
- Answer: MariaDB
is a fork of MySQL, created by the original developers of MySQL after concerns
over the acquisition of MySQL by Oracle. MariaDB aims to maintain compatibility
with MySQL while also introducing new features and enhancements.
3. Question: Explain the architecture of MariaDB.
- Answer: The
architecture of MariaDB is similar to that of MySQL. It includes a server
component, storage engines, query optimization, and the ability to connect
through various client interfaces. MariaDB supports a plugin architecture for
storage engines and features like the Aria storage engine, which is the default
storage engine.
4. Question: What are the storage engines supported by
MariaDB?
- Answer: MariaDB
supports various storage engines, including InnoDB (default), Aria, TokuDB,
MyRocks, and others. Each storage engine has its own characteristics and is
optimized for different use cases.
5. Question: Explain the role of the MariaDB Server.
- Answer: The
MariaDB Server is the core component responsible for managing databases,
processing queries, and handling client connections. It includes components
such as the query optimizer, execution engine, and storage engine interface.
6. Question: How does MariaDB handle transactions and ACID
properties?
- Answer: MariaDB
supports transactions and adheres to the principles of ACID (Atomicity,
Consistency, Isolation, Durability). It provides features like the `BEGIN`,
`COMMIT`, and `ROLLBACK` statements to control transaction behavior.
7. Question: What is the purpose of the MariaDB Query
Optimizer?
- Answer: The
MariaDB Query Optimizer analyzes SQL queries and generates efficient execution
plans. It considers factors such as indexes, statistics, and available
resources to optimize the query execution.
8. Question: Explain the concept of MariaDB Galera Cluster.
- Answer: MariaDB
Galera Cluster is a synchronous multi-master clustering solution for MariaDB.
It allows multiple MariaDB nodes to work together as a single cluster,
providing high availability and load balancing.
9. Question: How does MariaDB handle user authentication and
authorization?
- Answer: MariaDB
uses a username/password-based authentication system. User privileges are
managed through the `GRANT` and `REVOKE` statements, allowing administrators to
control access to databases, tables, and other objects.
10. Question: What is the significance of the MariaDB Data
Dictionary?
- Answer: The
MariaDB Data Dictionary is a centralized repository that stores metadata about
databases, tables, columns, and other objects in MariaDB. It provides a
consistent way to access and manage metadata, simplifying database
administration tasks.
These questions provide a basic understanding of the MariaDB
Database architecture and its key features.
