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
91. What is the primary goal of High Availability (HA) in MySQL?
A. Data compression
B. Data encryption
C. Data security
D. Ensuring continuous availability
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Answer: Ensuring continuous availability
92. Which type of replication in MySQL is asynchronous by default?
A. Master-Slave replication
B. Group replication
C. Circular replication
D. Bidirectional replication
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Answer: Master-Slave replication
93. What is the primary benefit of Group Replication in MySQL?
A. Read scalability
B. Fault tolerance
C. Data encryption
D. Query optimization
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Answer: Fault tolerance
94. In MySQL, which role is responsible for accepting write operations in a Master-Slave replication setup?
A. Master
B. Slave
C. Secondary
D. Backup
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Answer: Master
95. What is the purpose of the binary log in MySQL replication?
A. Storing compressed data
B. Recording changes to data
C. Managing user privileges
D. Securing network connections
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Answer: Recording changes to data
96. Which replication mode in MySQL allows data to flow in multiple directions between servers?
A. Master-Slave replication
B. Group replication
C. Circular replication
D. Bidirectional replication
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Answer: Bidirectional replication
97. What is the purpose of the Delayed Replication feature in MySQL?
A. To compress binary logs
B. To introduce an intentional delay
C. To increase write performance
D. To enhance read scalability
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Answer: To introduce an intentional delay
98. What is the primary advantage of using Semi-Synchronous replication in MySQL?
A. Improved read performance
B. Increased write latency
C. Reduced network traffic
D. Enhanced data security
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Answer: Reduced network traffic
99. Which MySQL replication mode is designed for high write-intensive workloads?
A. Master-Slave replication
B. Group replication
C. Circular replication
D. Bidirectional replication
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Answer: Group replication
100. What is GTID in MySQL replication?
A. Global Transaction Identifier
B. Group Transaction Identifier
C. Geographic Tracking Identifier
D. General Transfer Identification
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Answer: Global Transaction Identifier
