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MYSQL 1Z0-874 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Securing the MySQL Server | 10% | - Network security and encryption - Restricting file and system access - Security configuration options |
| Topic 2: Optimizing Schemas and Data Types | 15% | - Normalization and denormalization - Choosing appropriate data types - Table design and partitioning |
| Topic 3: Optimizing Queries | 15% | - Query rewriting and optimization - Index design and usage - Using EXPLAIN to analyze execution plans - Slow query log analysis |
| Topic 4: Upgrade-Related Security Issues | 5% | - Security changes between versions - Post-upgrade security checks |
| Topic 5: Interpreting Error Messages and Logs | 5% | - Error codes and messages - General, binary, and error logs |
| Topic 6: Stored Routines | 5% | - Stored procedures and functions - Security and execution context - Triggers and events |
| Topic 7: Scaling MySQL | 10% | - Read/write splitting - Replication setup and management - High availability concepts |
| Topic 8: Optimizing the Operating System Environment | 5% | - File system and disk I/O - OS resource limits and tuning |
| Topic 9: User Management and Access Control | 20% | - Grant tables structure and maintenance - Creating and managing user accounts - Granting and revoking privileges |
| Topic 10: Optimizing the Server Configuration | 10% | - Thread and connection management - Storage engine tuning - Memory and buffer settings |
MYSQL MySQL 5.0 Database Administrator Certified Professional Exam, Part II Sample Questions:
Suppose you have a server whose log files, data directory, and temporary files are distributed on different disks. How would this affect overall performance, compared to a server where all components reside on a single disk?
- A. Performance would remain about the same, because the same amount of disk usage would be needed.
- B. Performance would drop because the server would have to do extra work to read information off of the different disks.
- C. You would expect a performance gain because the disk related activities would be split more evenly.
Correct Answer: C 🗳️
By default, mysqld's memory settings are...
- A. Rather conservative and should be increased if possible.
- B. Rather consuming and should be decreased if possible.
- C. Set to a median value good for overall general use.
- D. There are no default memory settings for mysqld.
Correct Answer: A 🗳️
The user 'joe' connecting from the host example.com has full access to all databases on the server:
mysql> SHOW GRANTS FOR 'joe'@'example.com';
+--------------------------------------------------+
| Grants for [email protected] |
+----------------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'joe'@'example.com' |
+----------------------------------------------------+
1 row in set (0.00 sec)
You need to restrict the user from accessing the mysql database. Will the following statement do this?
REVOKE ALL PRIVILEGES ON mysql.* FROM 'joe'@'example.com'
- A. Yes
- B. The answer cannot be determined from the information provided.
- C. No
Correct Answer: C 🗳️
It is important to analyze queries that involve joins with EXPLAIN because...
- A. Joins are more prone to mistakes.
- B. Joins have the potential to cause more server processing if not defined correctly.
- C. Using EXPLAIN before executing the query helps the server prepare the statements used.
Correct Answer: B 🗳️
What will be the effect of executing the following statement?
REVOKE ALL PRIVILEGES FROM 'web'@'localhost'
- A. The account 'web'@'localhost' will no longer be usable for login, but since there is no ON clause, privileges are retained for re-enabling the account at a later time.
- B. The account 'web'@'localhost' will lose all privileges except for USAGE
- C. Nothing. A REVOKE statment without an ON clause is invalid
- D. The account 'web'@'localhost' will have all privileges removed, and the account deleted from the server.
Correct Answer: B 🗳️
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