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Oracle 1Z1-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. Which four authentication protocols are allowed when using MySQL Enterprise Authentication?

A) authentication using SHA-256 password hashing
B) Native Windows services
C) Simple Authentication and Security Layer
D) SECURID authentication and authorization identity
E) authentication via Pluggable Authentication Modules (PAMs)
F) connections through the local host via the UNIX socket file

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

3. What are the two main components required to set up persistent storage for MySQL on Kubernetes?
Response:

A) PVC (Persistent Volume Claim) and ConfigMap
B) Pod and ReplicaSet
C) Secret and Deployment
D) PVC (Persistent Volume Claim) and PV (Persistent Volume)

4. Consider this SQL statement which is using the innoDB storage engine and with global AUTOCOMMIT = 1:

What is the result after issuing the rollback command?

A) Only the t1 table is created.
B) Both the tables, t1 and t2, are created.
C) Both the tables, t1 and t2, are not created because there is an explicit ROLLBACK.
D) Only the t2 table is created.

5. MySQL is installed on a Linux server with the configuration:
Which two methods can change the default options to use the authentication plug-in that implements SHA-256 hashing for user account passwords?

A) Add default_authentication_plugin=sha256_password under [mysqld] in the configuration file.
B) Create user by using CREATE USER 'newuser'@'localhost' IDENTIFIED WITH 'Sh@256Pa33';
C) Add --default_authentication_plugin=sha256_password on the command line when you invoke the server.
D) Create user by using CREATE USER 'newuser' @'localhost' SET PASSWORD AS 'Sh@256Pa33';

Solutions: