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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

Question 1

Which MySQL Enterprise Edition plug-in replaces real values with substitutes?

A. MySQL Enterprise Scalability
B. MySQL Enterprise Transparent Data Encryption (TDE)
C. MySQL Enterprise No-Login Authentication
D. MySQL Enterprise Data Masking and De-identification
E. MySQL Enterprise Audit

Question 2

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. A database engine for MySQL.
D. An open-source container orchestration platform.

Question 3

Which statement would you use to remove the population column from the city table?

A. ALTER TABLE city DELETE population;
B. ALTER TABLE city LESS population;
C. DROP population FROM city;
D. DELETE population FROM city;
E. ALTER TABLE city DROP population;

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

Question 5

Which three options are valid reasons for using a primary key in a table?

A. to make it easier to change the PRIMARY KEY value
B. automatic storage of data in a sorted order
C. preventing duplicate keys
D. exporting data faster with mysqldump
E. increasing performance when using select statements
F. maintaining a history of row insertions or updates

Solutions: