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MYSQL 1Z0-873 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| The INFORMATION_SCHEMA Database | 5% | - Querying schema objects - Accessing metadata - Monitoring server state |
| Locking Mechanisms | 10% | - Row-level locking - Transaction isolation levels - Table-level locking - Lock contention and deadlocks |
| MySQL Architecture | 10% | - Client-server communication model - Storage engine separation - SQL parser and execution layers - Disk and memory usage structure |
| Character Set Support | 5% | - Conversion and compatibility issues - Character sets and collations - Server, database, table, and column level settings |
| Data and Table Maintenance | 10% | - Managing fragmentation - Checking and repairing tables - Analyzing table statistics - Optimizing tables and indexes |
| Storage Engines | 20% | - Choosing appropriate storage engines - InnoDB engine and transactions - MyISAM engine features - Memory, CSV, Archive, and Federated engines |
| Client Programs for DBA Work | 5% | - mysql command-line client - mysqlcheck and other admin tools - mysqladmin utility |
| Data Backup and Recovery Methods | 15% | - Restoring from backups - Binary backups and file system copies - Logical backups with mysqldump - Binary log usage for point-in-time recovery |
| Starting, Stopping, and Configuring MySQL | 20% | - Configuration files and variables - Startup methods and options - Shutdown procedures - Runtime configuration adjustments |
MYSQL MySQL 5.0 Database Administrator Certified Professional Exam, Part I Sample Questions:
Question 1
Which of the following correctly defines dirty reads, non-repeatable reads and phantom row?
A. A dirty read is a read by one transaction of its uncommitted changes.
B. A non-repeatable read is a row that appears where it was not visible before.
C. A phantom is a read by one transaction of uncommitted changes made by another transaction.
D. A non-repeatable read occurs when a transaction performs the same retrieval twice but gets a differentresult each time.
E. A phantom is a row that appears where it was not visible before.
F. A dirty read is a read by one transaction of uncommitted changes made by another transaction.
Question 2
Which of the following statements are true for InnoDB?
A. Tablespace and log files will be created even if not configured explicitly.
B. InnoDB is enabled by default.
C. InnoDB is not enabled by default.
D. Tablespace and log files have to be configured explicitly to be created.
Question 3
What are some advantages of using the INFORMATION_SCHEMA database rather than using the SHOW command?
A. It is faster than using SHOW commands.
B. You always use SELECT to retrieve any of the metadata.
C. Using the INFORMATION_SCHEMA can provide more concise information.
D. INFORMATION_SCHEMA is a feature of standard SQL, and SHOW is a MySQL specific command.
E. The information returned from the INFORMATION_SCHEMA can be stored in other tables.
Question 4
Assume you compile MySQL from source and invoke configure with the following options.
--with-charset=latin1 --with-extra-charsets=utf8,ucs2
Compared to a standard binary installation that contains many more character sets, which of the following statements is/are true?
A. The compiled version will use less disk space, because only a few character sets will be installed on disk.
B. The compiled version will use less file handles, because only a few files need to be opened when the server is started.
C. The compiled version will use less memory, because only a few character sets will be loaded by the server.
Question 5
Which of the following is/are properties of the mysqldump client program?
A. It can only dump files to the server host.
B. It bypasses the server and reads the corresponding data files directly.
C. It can put complete dump files on both the client and server host.
D. It dumps table contents to a file.
Solutions:
| Question 1 Answer: D,E,F | Question 2 Answer: A,B | Question 3 Answer: B,D,E | Question 4 Answer: A,C | Question 5 Answer: C,D |
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