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Oracle 1Z1-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

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

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

3. What is Kubernetes in the context of MySQL?
Response:

A) A cloud service provided by Oracle for MySQL databases.
B) A database engine for MySQL.
C) An open-source container orchestration platform.
D) A database management tool for MySQL.

4. Which statement is used to create a new MySQL database?
Response:

A) CREATE DATABASE
B) NEW DATABASE
C) CREATE TABLE
D) CREATE SCHEMA

5. Which statement adds a column with the largest integer data type?

A) ALTER TABLE SCIENTIFIC ADD scientific_value INTEGER;
B) ALTER TABLE SCIENTIFIC ADD scientific_value DECIMAL(15,10);
C) ALTER TABLE SCIENTIFIC ADD scientific_value DECIMAL(10,10);
D) ALTER TABLE SCIENTIFIC ADD scientific_value BIGINT;

Solutions: