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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. You establish MySQL Enterprise Server on Oracle Cloud Infrastructure connection via Secure Shell (SSH) For accessing a new MySQL Enterprise Edition on an Oracle Cloud Infrastructure (OCI) Instance you " Add SSH key " information during the OCI instance setup. You want to use Putty from your Windows Client to install MySQL.
What are the correct steps to accomplish this?

A) Open Port 22 on your OCI Instance and configure Putty with the ssh private key.
B) Convert the private key to ppk format first and use the new private key for authentication.
C) Use the provided private key for authentication.
D) Open Port 22 on your OCI Instance and convert the private key to ppk format. This new private key can be used for authentication.

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

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

3. You need to change the password level for a test system.
Which two allow to change this level before you create new test user/passwords?

A) SET GLOBAL force_password_complex_policy=0;
B) SET GLOBAL validate_password_policy=,new level,;
C) Add validate_password=,new level, in the [security] section of the MySQL configuration file.
D) Add validate_password_policy=,new level, in the [mysqld] section of the MySQL configuration file.

4. The slave connects to the master and asks for updated records. What command was issued for this to happen?

A) START RUN SLAVE
B) SLAVE RUN
C) RUN SLAVE
D) SLAVE START
E) START SLAVE

5. You execute this statement:
SELECT NULL=NULL;
What is the result?

A) 0
B) FALSE
C) TRUE
D) 1
E) NULL

Solutions: