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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. You have a MySQL Server instance (running with Port# 3306) monitored by the Service Manager in MySQL Enterprise Monitor. You cloned the MySQL Database instance and configured it to be a replicated MySQL instance as Slave using Port# 3316 on the same machine as the Master Server. The replication configuration is working correctly. The Master and Slave Servers are running.
You are trying to add the newly created MySQL Slave instance to the Monitor. The Service Manager in MySQL Enterprise Monitor notifies you that the new instance is successfully added; however, it is not added correctly at the newly added configuration points to the old Master monitored items. The Monitor shows only one monitored MySQL instance for Master and Slave.
Which two are possible reasons for this problem?

A) The mysql.instance table on SLAVE is cloned with the same content as MASTER, which has the same server UUID.
B) The SLAVE and MASTER instances are started with the same configured value for the option - - monitor_server_uuid.
C) The mysql.inventory table on SLAVE is cloned with the same content as MASTER, which has the same server UUID.
D) All the MySQL instances (Master and Slave) have the same server_uuid in <datadir>/auto.cnf.
E) The MASTER and SLAVE are grouped as one instance for monitoring.

2. You establish MySQL Enterprise Server on Oracle Cloud Infrastructure connection via Secure Shell (SSH).
When accessing a new MySQL Enterprise Edition Oracle Cloud Infrastructure (OCI) instance, you want to use MySQL Enterprise Workbench for SQL and remote management.
What are two ways to successfully configure Workbench based on the MySQL access credentials?

A) Convert the private key to ppk format first. Based on TCP/IP over SSH and based on the created private key, opc-user, and MySQL access credentials, you can access the MySQL CS instance.
B) Configure TCP/IP over SSH and based on the created private key, opc-User, and MySQL access credentials, you can access the MySQL OCI instance.
C) Configure the MySQL Router first and based on those settings, you access your MySQL CS instance.
D) Open the MySQL OCI instance access port 3306. For the MySQL connection, you use this port, and, in addition, you configure the remote management based on SSH based on the provided key.

3. How would you restrict a user Joe from accessing all MySQL database objects?

A) CREATE USER , joe,@1' %' DENY ALL PRIVILEGES
B) Insert Joe,s name into the mysql.user_restriction cable, and issue the FLUSH PRIVILEGES command.
C) UPDATE mysql.user SET Password=PASSWORD(,Invalid,) WHERE User=,joe';
D) CREATE USER ,joe'@,0.0.0.0, SET Password=PASSWORD(,% ! %,)
E) REVOKE ALL PRIVILEGES, GRANT OPTION FROM ,joe,@,%,;

4. You want to create an encrypted table. So, you enter this command:
CREATE TABLE 'test_encryption2% (
'id' int(10) unsigned NOT NULL AUTO_INCREMENT,
'server_name' varchar(15) NOT NULL,
PRIMARY KEY ('id') ) ENGINE=MYISAM AUTO_INCREMENT=l DEFAULT CHARSET=latin1 ENCRYPTION = 'Y1; You receive the following error:
ERROR 1031 (HY000): Table storage engine for 'test_encryption2' doesn't have this option Which statement correctly explains the reason for this error?

A) The term "server_name" is a reserved MySQL term. You cannot use it for the new table. This is what is causing the error.
B) You cannot use the AUTO_INCREMENT option to create an encrypted table. This is what is causing the error.
C) The encryption feature only works with InnoDB tables. You are creating a MylSAM table, and it is causing the error.
D) The test_encryption2 already exist. You are not using the correct option to recreate it and it is causing the error.

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

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

Solutions: