MySQL is an open-source relational database management system (RDBMS) that has been a cornerstone of web applications and data-driven solutions for over two decades. Developed by Oracle, MySQL offers a robust and efficient platform for storing, managing, and retrieving structured data. Its features include support for SQL, high performance, scalability, and extensive community support. MySQL is widely used for web development, e-commerce, content management systems, and more, making it a versatile and trusted database solution for organizations of all sizes, from startups to large enterprises.
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Practice Test
131. What is the purpose of MySQL's "Partitioning" feature?
A. To add table-level encryption
B. To divide large tables into smaller, manageable pieces
C. To create primary key constraints
D. To enable replication
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Answer: To divide large tables into smaller, manageable pieces
132. Which advanced feature in MySQL allows you to define actions that occur when rows are inserted, updated, or deleted in a table?
A. Data Validation
B. Stored Procedures
C. Triggers
D. Query Optimization
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Answer: Triggers
133. What is the primary use of MySQL's "Stored Procedures"?
A. To define custom functions
B. To manage user accounts
C. To create transaction logs
D. To encapsulate SQL logic
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Answer: To encapsulate SQL logic
134. In the context of replication, what is the purpose of the "GTID" (Global Transaction Identifier) feature?
A. To add a unique identifier to each row
B. To manage user privileges
C. To uniquely identify transactions
D. To optimize query performance
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Answer: To uniquely identify transactions
135. Which feature in MySQL is used for High Availability and automatically redirects read operations to a standby server?
A. GTID
B. Failover
C. ProxySQL
D. Multi-Source Replication
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Answer: ProxySQL
136. What is "Sharding" in MySQL?
A. A storage engine
B. A data validation method
C. A partitioning technique
D. A data distribution strategy
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Answer: A data distribution strategy
137. What is the purpose of the "Federated Storage Engine" in MySQL?
A. To compress data
B. To connect to external databases
C. To manage user accounts
D. To perform data modeling
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Answer: To connect to external databases
138. Which MySQL feature allows for multiple source replication, enabling replication from multiple master servers to a single slave?
A. GTID
B. Federated Storage Engine
C. Multi-Source Replication
D. Triggers
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Answer: Multi-Source Replication
139. What is the purpose of MySQL's "Row-Level Security" feature?
A. To encrypt data
B. To restrict access to rows based on user roles
C. To optimize query performance
D. To create transaction logs
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Answer: To restrict access to rows based on user roles
140. Which MySQL feature is used to ensure ACID (Atomicity, Consistency, Isolation, Durability) compliance in transactions?
A. Data Validation
B. Federated Storage Engine
C. Binary Log
D. InnoDB Storage Engine
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Answer: InnoDB Storage Engine
