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1Z1-921 Exam Actual Questions | 1Z1-921 Study Materials Review

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Oracle MySQL 2021 Implementation Essentials Sample Questions (Q55-Q60):

NEW QUESTION # 55
You are using the innoDB engine and the innodb_f ile_per_table option is set.
You delete a significant number of rows of a large table named inventory and issue the command optimize table inventory.
What will happen to the inventory table?

A. The table statistics will be stored.
B. The table storage space will be reduced.
C. The table will be optimized and replicated.
D. The table will be checked for errors and repaired.

Answer: C

NEW QUESTION # 56
What are Security Lists in Oracle Cloud Infrastructure?

A. They contain rules established by HIPAA for securing end-user data.
B. They allow administrators access to applications in the cloud and external servers.
C. They are user-role designations that assign rights to certain internal users and external users.
D. Security lists are data encryption levels that control who can see the data.
E. They are essentially firewall rules that help control traffic between OCI instances.

Answer: E

NEW QUESTION # 57
Which three components can MySQL InnoDB Cluster use to Achieve database high availability?

A. MySQL X Plugin to enable MySQL to use the X Protocol to speed up and monitor data replication.
B. MySQL Online Hot Backup to keep data consistent and always ready to be used.
C. MySQL Shell to create and administer InnoDB Clusters using the built-in AdminAPI.
D. MySQL Servers with Group Replication to replicate data to all members of the cluster.
E. MySQL Router to ensure client requests are load balanced and routed to the correct servers.

Answer: C,D,E

NEW QUESTION # 58
Which of the following statements is true regarding MySQL user account privileges?
Response:

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

Answer: B

NEW QUESTION # 59
What is true about MySQL Enterprise Transparent Data Encryption (TDE)?

A. Encryption key is stored in a centralized key memory location
B. Enables data-at-rest encryption by encrypting the physical files of the database.
C. Tablespace keys are managed manually behind the scenes.
D. Data is encrypted automatically, in real time, after it is written to storage.

Answer: B

NEW QUESTION # 60
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