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Oracle 1Z1-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

Question 1

How does MySQL HeatWave improve query performance?
Response:

A. By automatically creating indexes on frequently used columns.
B. By offloading analytics queries to an in-memory, highly parallel processing engine.
C. By replicating data across multiple servers.
D. By caching the entire database in memory.

Question 2

Which activity will take place if a table is created with both the compression and encryption options?

A. The compression is performed before tablespace data is encrypted.
B. The tablespace data is encrypted first and then compression is performed.
C. The compression is performed, the ''data_at_rest_flag" is turned on and the tablespace data is encrypted.
D. The system generates an error because the COMPRESSION and ENCRYPTION options cannot be used together.

Question 3

You have created your Compute instance using an Oracle-provided Oracle Linux image.
You want to log in to your OCI Compute instance using SSH. Which three items do you need for this process?

A. SSH private key
B. SSH public key
C. The opc user
D. The root user
E. Public IP address
F. User Password

Question 4

The user -os-user'@"localhost" was created to monitor connections and shut down the server, and was granted these privileges:
GRANT PROCESS, SHUTDOWN ON *.* TO "OS-user*@"localhost';
Which three are commands that the os-user can execute?

A. SHOW BINLOG EVENTS;
B. SHOW STATUS;
C. SHOW PROCESSLIST;
D. GRANT PROXY
E. SHUTDOWN
F. KILL PROCESS;

Question 5

How would you restrict a user Joe from accessing all MySQL database objects?

A. UPDATE mysql.user SET Password=PASSWORD(,Invalid,) WHERE User=,joe';
B. CREATE USER , joe,@1' %' DENY ALL PRIVILEGES
C. CREATE USER ,joe'@,0.0.0.0, SET Password=PASSWORD(,% ! %,)
D. Insert Joe,s name into the mysql.user_restriction cable, and issue the FLUSH PRIVILEGES command.
E. REVOKE ALL PRIVILEGES, GRANT OPTION FROM ,joe,@,%,;

Solutions: