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Oracle 1Z1-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. Which two statements are true about MySQL Enterprise Firewall?

A) MySQL Enterprise Firewall shows only notifications blocked connections, which originated outside of your network's primary domain.
B) On Windows systems, MySQL Enterprise Firewall is controlled and managed by using the Windows Internet Connection Firewall control panel.
C) System tables named firewall_users and firewall_whitelist in the mysql database provide persistent storage of firewall data.
D) The firewall functionality is dependent upon SHA-256 and ANSI-specific functions built in to the mysql.firewall table. These functions cannot be deleted, even by the root user.
E) Server-side plug-ins named MYSQL_FIREWALL_USERS and MYSQL_FIREWALL-WHITELIST implement INFORMATION_SCHEMA tables that provide views into the firewall data cache.
F) MySQL Enterprise Firewall is available only in MySQL Enterprise versions 5.7.10.and later.

2. Which of the following statements is true regarding MySQL user account privileges?
Response:

A) The RELOAD privilege allows a user to delete data from a table.
B) The GRANT option allows a user to revoke privileges from other users.
C) The USAGE privilege allows a user to connect to the MySQL server but grants no other privileges.
D) A user with the SUPER privilege can only read data from the database.

3. Which best describes database horizontal scale-out architecture deployment in MySQL in a read-heavy environment?

A) Increasing the storage capacity so that the database can store more data to scale.
B) Adding more MySQL servers and sharing the same dacadir on a shared storage component like NFS.
C) Increasing the memory capacity so that there is a larger pooling buffer to increase the database read performance.
D) Deploy MySQL read-only slaves utilizing replication so that the slaves can be used for reads.
E) Allocating more CPU to the database instance to improve throughput performance.

4. What is Kubernetes in the context of MySQL?
Response:

A) A cloud service provided by Oracle for MySQL databases.
B) A database management tool for MySQL.
C) An open-source container orchestration platform.
D) A database engine for MySQL.

5. When should you perform a backup in a MySQL database?
Response:

A) Only when the database size exceeds a certain limit.
B) After critical data updates or before making significant changes to the database.
C) Only during scheduled maintenance windows.
D) After every successful query execution.

Solutions: