Oracle 1Z1-921

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Oracle 1Z1-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. You have created your Compute instance using an Oracle-provided Oracle Linux image.
You want to log in to your OCI Compute instance using SSH. Which three items do you need for this process?

A) The root user
B) Public IP address
C) SSH private key
D) SSH public key
E) User Password
F) The opc user

2. What is true about MySQL Enterprise Transparent Data Encryption (TDE)?

A) Encryption key is stored in a centralized key memory location
B) Tablespace keys are managed manually behind the scenes.
C) Enables data-at-rest encryption by encrypting the physical files of the database.
D) Data is encrypted automatically, in real time, after it is written to storage.

3. By using the asynchronous MySQL Replication architecture, data can be replicated to slaves. Identify three use cases of MySQL Replication.

A) It provides multi-master access where the application can write and read data across the database servers.
B) It allows backup to be done on the slave without impacting the master.
C) You can create a slave server for reporting applications, which get only read access to the slave servers. It off-loads the master server. Additional servers allow different database server configuration.
D) MySQL Replication Connector/J (ReplicationDriver) is provided to allow read capability on slave and write capability on master.
E) MySQL Enterprise Backup will back up from Slave automatically.

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

5. Which statement would you use to remove the population column from the city table?

A) DELETE population FROM city;
B) ALTER TABLE city DELETE population;
C) DROP population FROM city;
D) ALTER TABLE city DROP population;
E) ALTER TABLE city LESS population;

Solutions: