Oracle 1Z0-921 : MySQL 2021 Implementation Essentials

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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. You get a maintenance-notification about your MySQL Enterprise Edition in Oracle Cloud Infrastructure (OCI) Compute instance. What is re the implication?

A) You need to agree to the maintenance windows. If not, you are not affected by the outage.
B) You can expect an outage of your MySQL OCI instance during the planned time..
C) There are no maintenance operations planned. You need to do them manually.
D) Depending on the planned outage, you may not be affected by it. You need to read the maintenance details in the support notice.

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

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

3. The replication for a Master and Slave MySQL Servers is up and running. The disk space for Master Server is continuously growing. The binlog size keeps growing. Which two methods can fix the issue?

A) Delete all binlog files manually on the file system to release storage spaces.
B) Execute the purge binary logs statement without argument.
C) Set the expire_logs_days system variable to expire binary log files automatically after a given number of days.
D) To safely purge binary log files, perform these steps:
E) On the Master server, disable binlog by removing the --log-bin option.

4. Which three statements describe MySQL Enterprise Backup?

A) MySQL Enterprise Backup can be used to import/export data from on-premises MySQL installations.
B) MySQL Enterprise Backup provides the point-in-time recovery functionality.
C) MySQL Enterprise Backup is an optimized backup based on mysqldump with optimized row locking.
D) MySQL Enterprise Backup offers backup based on Oracle RMAN with optimized row locking.
E) MySQL Enterprise Backup can be used to send backups to Oracle Cloud Infrastructure Storage Service.

5. Your newly-created Oracle Cloud Infrastructure instance is not available for login in. Which is a valid reason for this issue?

A) The OCI instance is still in the "creation" process.
B) Only root is allowed to access from non-localhost.
C) You forgot to enable port 3306.
D) The opc user can be used to access MySQL only with the created SSH-Key.
E) You forgot to create the correct SSL/TLC certificate during the setup process.

Solutions: