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MYSQL 1Z0-874 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Scaling MySQL | 10% | - Read/write splitting - High availability concepts - Replication setup and management |
| Optimizing the Server Configuration | 10% | - Memory and buffer settings - Thread and connection management - Storage engine tuning |
| Stored Routines | 5% | - Triggers and events - Security and execution context - Stored procedures and functions |
| Interpreting Error Messages and Logs | 5% | - Error codes and messages - General, binary, and error logs |
| Upgrade-Related Security Issues | 5% | - Security changes between versions - Post-upgrade security checks |
| Securing the MySQL Server | 10% | - Security configuration options - Restricting file and system access - Network security and encryption |
| User Management and Access Control | 20% | - Grant tables structure and maintenance - Creating and managing user accounts - Granting and revoking privileges |
| Optimizing Queries | 15% | - Query rewriting and optimization - Using EXPLAIN to analyze execution plans - Index design and usage - Slow query log analysis |
| Optimizing the Operating System Environment | 5% | - OS resource limits and tuning - File system and disk I/O |
| Optimizing Schemas and Data Types | 15% | - Choosing appropriate data types - Table design and partitioning - Normalization and denormalization |
MYSQL MySQL 5.0 Database Administrator Certified Professional Exam, Part II Sample Questions:
Question 1
The account 'ulf'@'localhost' has previously been created with the statement
GRANT ALL PRIVILEGES ON *.* TO 'ulf'@'localhost' IDENTIFIED BY 'w01f' This account should no longer be used, so you issue the following command:
REVOKE ALL PRIVILEGES ON *.* FROM 'ulf'@'localhost'
After executing this statement, you inspect the server and find that no clients are connected using that account. However, the next day you notice that the account 'ulf'@'localhost' is indeed connected to the server. Why is it still possible for the account 'ulf'@'localhost' to connect to the server?
A. The REVOKE statement used does not remove the USAGE privilege from the account, allowing new connections with that account.
B. The ON *.* clause should not be specified when disabling an account
C. Specifying GRANT ALL PRIVILEGES ON *.* effectively created an administrator account, which cannot be disabled through the REVOKE statement
D. The REVOKE command was not followed by a FLUSH PRIVILEGES command, so the account was never actually disabled
Question 2
Assuming that the user account 'joe'@'example.com' exists, executing DROP USER
'joe'@'example.com' has the following consequences:
A. The user account and all associated privileges will be removed from the server the next time FLUSH PRIVILEGES is executed.
B. The account and all associated privileges will immediately be removed from the server
C. The user account will immediately be removed from the server, if no object-level privileges are in effect for that account
D. The account will be removed from the server the next time FLUSH PRIVILEGES is executed, if no object-level privileges are in effect for that account
Question 3
Why should you be selective when granting the SUPER privilege to an account? (Choose two)
A. Because it allows client accounts to takeover other client accounts.
B. Because it allows a client to shutdown the server.
C. Because it allows a client to kill other client connections.
D. Because it allows changing of the server runtime configuration.
Question 4
Does max_connections have an affect on the number of slaves that may connect to a master?
A. Yes, because each slave is effectively a connected user.
B. Yes, because if the server has too many connections, it may slow the slaves down.
C. No, because slaves are not really clients.
D. No, because slaves do not use the same type of connection as a regular client.
Question 5
Why should you be selective when granting the PROCESS privilege to an account?
A. Because it allows the client to control running processes on the server.
B. Because it allows the client to process scripts.
C. Because it allows for the use of stored routines.
D. Because it allows for the use of the SHOW PROCESSLIST command, which can expose data.
Solutions:
| Question 1 Answer: A | Question 2 Answer: B | Question 3 Answer: C,D | Question 4 Answer: A | Question 5 Answer: D |
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