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Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. What are Security Lists in Oracle Cloud Infrastructure?

A) They allow administrators access to applications in the cloud and external servers.
B) They are essentially firewall rules that help control traffic between OCI instances.
C) They contain rules established by HIPAA for securing end-user data.
D) They are user-role designations that assign rights to certain internal users and external users.
E) Security lists are data encryption levels that control who can see the data.

2. When should you perform a backup in a MySQL database?
Response:

A) After critical data updates or before making significant changes to the database.
B) After every successful query execution.
C) Only during scheduled maintenance windows.
D) Only when the database size exceeds a certain limit.

3. Which two statements are true about the creation or use of a Virtual Cloud Network (VCN)?

A) You can connect directly to the VCN without a define subnet.
B) You must have an IPSec VPN to connect to an Oracle Linux instance.
C) Your instance does not have a public IP address, so you cannot connect with a public subnet.
D) You must have an Internet gateway to connect to a public address on an Oracle Linux instance.
E) You can connect directly to an instance over the internet, without a public IP address.

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

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

5. After installing MySQL 8.0, you initialize the data directory with the --initialize command. Which two are places where you can find the root password?

A) The root password displayed on the screen via a [warning] message.
B) The root password is not given and is blank. You must manually set the root password.
C) As root, execute the show password command by using the SHA-256 password encryption plug-in.
D) The root password inserted in the error log set by the --log-error=[file_name] variable
E) The root_pw variable stored in the mysq1.install table.

Solutions: