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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

Question 1

Which Oracle product is certified to work with MySQL Enterprise Edition?

A. Oracle Data Pump
B. Oracle Enterprise Manager
C. Oracle Enterprise Backup
D. Oracle Application Express

Question 2

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

Question 3

Which statement adds a column with the largest integer data type?

A. ALTER TABLE SCIENTIFIC ADD scientific_value DECIMAL(15,10);
B. ALTER TABLE SCIENTIFIC ADD scientific_value DECIMAL(10,10);
C. ALTER TABLE SCIENTIFIC ADD scientific_value BIGINT;
D. ALTER TABLE SCIENTIFIC ADD scientific_value INTEGER;

Question 4

You want to create the user named jenny for any host server with the password secretpassi23! and the password is expired? Which command should you use?

A. CREATE USER ,jenny,0,%t IDENTIFIED BY ,SecretPass123!, PASSWORD EXPIRE;
B. CREATE USER ,jenny,@,%, IDENTIFIED WITH sha256_password BY 'SecretPass123!,;
C. CREATE USER ,jenny,@'%, WITH HASHED(password,,SecretPass123!,), PASSWORD EXPIRE
D. CREATE USER ,jenny,@,localhost, IDENTIFIED BY (,SecretPass123!,,,256,, Expired)
E. CREATE USER ,jenny *@,localhost, IDENTIFIED WITH HASH PASSWORD(,SecretPass123!,)

Question 5

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

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

Solutions: