Exam Name: MySQL 5.7 Database Administrator
Certification Provider: Oracle
Corresponding Certification: MySQL Database Administration
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Oracle 1Z0-888 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: MySQL Security | 15% | - Encryption and secure connections - Identify security vulnerabilities and risks - Network and operating system security - Prevent SQL injection and harden configuration |
| Topic 2: Monitoring and Maintaining System Stability | 15% | - Capacity planning and server stability - Monitor using logs, status variables, and Performance Schema - Troubleshoot slowdowns and server issues - InnoDB crash recovery and maintenance |
| Topic 3: Backup and Recovery | 15% | - Validate and restore backups - Perform point-in-time recovery - Design backup strategies - Use mysqldump, raw backups, and binary logs |
| Topic 4: Performance and Query Optimization | 15% | - Optimize server configuration and memory usage - Identify and analyze slow queries - Index design, statistics, and maintenance - Use EXPLAIN and query execution plans |
| Topic 5: User and Access Management | 10% | - Grant/revoke privileges and reset root password - Create, modify, and delete user accounts - Authentication plugins and password policies - Understand MySQL privilege system |
| Topic 6: Replication and High Availability | 15% | - Monitor replication status and health - Troubleshoot replication errors and conflicts - Understand replication architecture and components - Configure and manage replication topologies |
| Topic 7: MySQL Architecture and General Administration | 15% | - Understand MySQL architecture and request processing - Understand storage engines, tablespaces, redo/undo logs - Manage system variables and configuration files - Install and configure MySQL Server |
Studying for 1Z0-888 Without Paper and Without Borders
- Monitoring and Maintaining System Stability (15%)
- Backup and Recovery (15%)
- MySQL Architecture and General Administration (15%)
Oracle MySQL 5.7 Database Administrator Sample Questions:
Consider the two partial outputs of the SHOW GLOBAL VARIABLES command from a master and slave server:
Master:
Slave:
There is a problem with the slave replicating from the master. Which statement describes the cause of the problem?
- A. The log_bin variable is set to OFF on the slave.
- B. The shared_memory_base_name variable must match the master.
- C. The version of the slave is newer that the version of the master.
- D. server_id is not unique.
- E. The max_connections variable on the slave needs to be increased.
Correct Answer: A 🗳️
A particular government's security policy is to have very strict data encryption and safety settings. This is done by restricting access based on their own CA authority and limiting access to particular users within a department. Which method could be used to restrict access as required?
- A. using GRANT ... REQUIRE SSL for a secure connection
- B. using GRANT USAGE, SSL, .....ON *.* TO user@remotehost IDENTIFIED BY `secret_password'
- C. using GRANT ... REQUIRE X509 AND REQUIRE ISSUER `/C=.....' AND REQUIRE SUBJECT `/C=.....'
- D. using GRANT USAGE, X509, .......ON *.* TO user@remotehost IDENTIFIED BY `secret_password'
Correct Answer: C 🗳️
An existing master-slave setup is currently using a delayed replication of one hour. The master has crashed and the slave must be "rolled forward" to provide all the latest data.
The SHOW SLAVE STATUSindicates these values:
* RELAY_LOG_FILE=hostname-relay-bin.00004
* RELAY_LOG_POS=1383
Which command set would make the slave current?
- A. STOP SLAVE; CHANGE MASTER TO MASTER_DELAY=0; START SLAVE;
- B. STOP SLAVE; SET GLOBAL master_delay=0; START SLAVE;
- C. STOP SLAVE; CHANGE MASTER TO RELAY_LOG_FILE = `hostname-relay-bin.00004', RELAY_LOG_POS = 1383;
- D. STOP SLAVE; CHANGE MASTER TO MASTER_DELAY=0; RELAY_LOG_FILE = `hostname-relay- bin.00004', RELAY_LOG_POS = 1383;
Correct Answer: A 🗳️
You have installed MySQL on Oracle Linux 7 using the official RPM distribution, and SELinux is set to
"permissive".
Examine this extract of the my.cnf file:
You issue this command to start MySQL Server:
systemctl start mysqld@replica
On which port is the server listening?
- A. 3304
- B. 3302
- C. 3301
- D. 3303
Correct Answer: C 🗳️
To query two system variables, you execute this statement and get the results shown:
When you execute the following two statements, only the first one succeeds:
SET @@autocommit=0;
SET @@max_connections=200;
Why does the second statement fail?
- A. max_connections must be set globally instead of locally.
- B. max_connections is a read-only variable that cannot be set dynamically.
- C. max_connections is a derived variable that can only be set indirectly.
- D. max_connections must be set at server start in an options file.
Correct Answer: D 🗳️
Viewing page 1 out of 31 pages.
Viewing questions 1-5 out of 155 questions.
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