3i Infotech Mysql Database Administrator Interview Questions and Answers

A database is a structured collection of data that is organized in a way that allows for easy access, management, and retrieval.

• A database is used to store and organize data in a structured format.

• It allows for efficient retrieval and manipulation of data.

• Examples of databases include MySQL, Oracle, SQL Server, and MongoDB.

MySQL is an open-source relational database management system that is popular for its ease of use, flexibility, and scalability.

• MySQL is an open-source RDBMS, allowing users to freely use, modify, and distribute the software.

• It is known for its ease of use, making it accessible for beginners and experts alike.

• MySQL is highly flexible, supporting various data types and storage engines.

• It is popular for its scalability, ...read more

To retrieve a set of data in a database, you can use SQL queries to specify the data you want to retrieve.

• Use SELECT statement to specify the columns you want to retrieve

• Use FROM clause to specify the table where the data is stored

• Use WHERE clause to specify any conditions for filtering the data

• Use ORDER BY clause to specify the order in which the data should be returned

• Use LIMIT clause to specify the maximum number of...read more

To know disk utilization in Linux, use commands like df, du, and iostat.

• Use 'df' command to display disk space usage on Linux filesystems.

• Use 'du' command to estimate file space usage.

• Use 'iostat' command to monitor system input/output device loading.

• Check disk utilization with tools like 'iotop' and 'atop'.