MYSQL 1Z0-874 : MySQL 5.0 Database Administrator Certified Professional Exam, Part II
- Exam Code: 1Z0-874
- Exam Name: MySQL 5.0 Database Administrator Certified Professional Exam, Part II
- Updated: Sep 14, 2026
- Q & A: 140 Questions and Answers
About MYSQL 1Z0-874 Exam
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MYSQL 1Z0-874 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Interpreting Error Messages and Logs | 5% | - General, binary, and error logs - Error codes and messages |
| Topic 2: Scaling MySQL | 10% | - High availability concepts - Replication setup and management - Read/write splitting |
| Topic 3: Stored Routines | 5% | - Security and execution context - Stored procedures and functions - Triggers and events |
| Topic 4: Optimizing Schemas and Data Types | 15% | - Choosing appropriate data types - Table design and partitioning - Normalization and denormalization |
| Topic 5: Upgrade-Related Security Issues | 5% | - Post-upgrade security checks - Security changes between versions |
| Topic 6: Optimizing the Server Configuration | 10% | - Thread and connection management - Memory and buffer settings - Storage engine tuning |
| Topic 7: Optimizing the Operating System Environment | 5% | - File system and disk I/O - OS resource limits and tuning |
| Topic 8: User Management and Access Control | 20% | - Grant tables structure and maintenance - Granting and revoking privileges - Creating and managing user accounts |
| Topic 9: Optimizing Queries | 15% | - Using EXPLAIN to analyze execution plans - Query rewriting and optimization - Slow query log analysis - Index design and usage |
| Topic 10: Securing the MySQL Server | 10% | - Security configuration options - Network security and encryption - Restricting file and system access |
MYSQL MySQL 5.0 Database Administrator Certified Professional Exam, Part II Sample Questions:
Which of the following best describes when it might be advantageous to split a dynamic-row table into dynamic-row and fixed-row tables?
- A. When the table contains both fixed and variable length columns, but the majority of queries on it access the variable length columns.
- B. When the table contains both fixed and variable length columns, but the majority of queries on it access the fixed length columns.
- C. When the table contains both fixed and variable length columns, and the majority of queries access both the variable and fixed length columns.
Correct Answer: B 🗳️
Does the ordering of tables shown in an EXPLAIN output have any significance? Why?
- A. No, it sorts them alphabetically.
- B. Yes, it sorts by the most optimized to the least optimized.
- C. Yes, it determines the table from which data will read first.
- D. No, the order is determined by the order in which tables are specified in the statement being EXPLAINed.
Correct Answer: C 🗳️
Which of the following best describes why one should use VARCHAR rather than CHAR in InnoDB? (Choose two)
- A. The optimizer always performs better with VARCHAR columns over CHAR columns.
- B. Generally, there will be less disk I/O during processing.
- C. The average amount of space used will be less.
- D. VARCHAR columns provide better transaction support.
Correct Answer: B,C 🗳️
By default, mysqld's memory settings are...
- A. Rather consuming and should be decreased if possible.
- B. Set to a median value good for overall general use.
- C. There are no default memory settings for mysqld.
- D. Rather conservative and should be increased if possible.
Correct Answer: D 🗳️
Which of the following correctly describe the purpose of the sort buffer, and when it is set? (Choose two)
- A. The sort buffer is used to control the maximum number of sorts the server can perform simultaneously.
- B. The sort buffer is global and the size can only be set by restarting the server.
- C. The sort buffer is used for operations such as ORDER BY or GROUP BY which can speedup sorting operations.
- D. The size of the sort buffer is set per-connection.
Correct Answer: C,D 🗳️
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