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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 |
| Client Programs for DBA Work | 5% | - mysqladmin utility - mysqlcheck and other admin tools - mysql command-line client |
| Storage Engines | 20% | - Choosing appropriate storage engines - Memory, CSV, Archive, and Federated engines - InnoDB engine and transactions - MyISAM engine features |
| MySQL Architecture | 10% | - Client-server communication model - Disk and memory usage structure - SQL parser and execution layers - Storage engine separation |
| Starting, Stopping, and Configuring MySQL | 20% | - Runtime configuration adjustments - Startup methods and options - Configuration files and variables - Shutdown procedures |
| Character Set Support | 5% | - Server, database, table, and column level settings - Conversion and compatibility issues - Character sets and collations |
| Data and Table Maintenance | 10% | - Checking and repairing tables - Analyzing table statistics - Optimizing tables and indexes - Managing fragmentation |
| Locking Mechanisms | 10% | - Row-level locking - Table-level locking - Lock contention and deadlocks - Transaction isolation levels |
| Data Backup and Recovery Methods | 15% | - Logical backups with mysqldump - Binary backups and file system copies - Binary log usage for point-in-time recovery - Restoring from backups |
MYSQL MySQL 5.0 Database Administrator Certified Professional Exam, Part I Sample Questions:
1. Index analysis and optimization using ANALYZE and OPTIMIZE statements should...
A) be run when EXPLAIN SELECT shows that an inordinate amount of rows is expected to be read during query execution
B) be run once the table reaches 100,000 rows or above
C) generally never be run manually
D) be run when more than 5% of the rows are changed by a single statement
E) be run when you suspect that a table is heavily fragmented
2. Which of the following should be done before upgrading the mysql server to a newer version?
A) Nothing; MySQL data files are binary compatible between all versions and the server will automatically perform any conversions needed.
B) Prepare the datadir to be read in by a new version by running the mysqlupgrade --prepare command on it.
C) Read through the online change notes and understand the changes made between the versions.
D) Read and understand the appropriate "Upgrading MySQL" section of the online manual.
3. Suppose you have a column in which most records are going to be between 30 and 32 characters. Which of the following column types would be most efficient?
A) VARCHAR
B) TEXT
C) Either VARCHAR or CHAR
D) CHAR
4. You have created a dump using mysqldump with the --extended-insert option. Will you be able to use this dump on any MySQL server instance?
A) Yes, provided that --max-allowed-packet is set correctly
B) Yes, provided that binary logging is turned off during the re-reading of the dump.
C) No, the new server instance must be the same version as the one which created the dump for everything to work
D) Always
5. Which of the following statements are true?
A) MyISAM tables will be automatically recovered after a crash.
B) InnoDB tables will be automatically recovered after a crash.
C) InnoDB tables cannot be recovered after a crash, you have to restore data from backup.
D) MyISAM tables will be recovered after a crash if the myisam-recover option is configured.
E) InnoDB tables will be recovered after a crash if the innodb-recover option is configured.
F) MyISAM tables cannot be recovered after a crash, you have to restore data from backup.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: C,D | Question # 3 Answer: D | Question # 4 Answer: A | Question # 5 Answer: B,D |
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