Oracle 1Z0-921 real exam prep : MySQL 2021 Implementation Essentials

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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. What three are ways to export and import data in MySQL Workbench?

A) Result Data Export and Import
B) SQL Data Export and Import Wizard
C) Data Modeling Import Export Wizard
D) Binary Data Export and Import Wizard
E) Table Data Export and Import Wizard
F) Backup Data Export and Import Wizard

2. The user -os-user'@"localhost" was created to monitor connections and shut down the server, and was granted these privileges:
GRANT PROCESS, SHUTDOWN ON *.* TO "OS-user*@"localhost';
Which three are commands that the os-user can execute?

A) GRANT PROXY
B) SHUTDOWN
C) SHOW STATUS;
D) SHOW BINLOG EVENTS;
E) KILL PROCESS;
F) SHOW PROCESSLIST;

3. Which three are characteristics of the JSON data type?

A) It supports indexing directly against the JSON-defined column.
B) It is based on the TEXT data type.
C) Comparisons of JSON values are not case-sensitive.
D) Key or array references enable quick read-access to look up document elements directly.
E) A set of SQL functions substantially support the SQL utilization of the data type.
F) It validates the JSON syntax on insert or merge.

4. Which two deployment architectures could you use for scaling-out database reads?

A) Adding a memcached-tier for caching data and objects in RAM to reduce the number of times an external data source must be read.
B) Changing the system setting with memory stickiness to true in order not to swap out mysq1dfrom memory.
C) Edit the configuration file and increase the value for parallel_read_workers and reboot the server
D) Altering the storage engine for all tables to memory to increase performance.
E) Implementing a three-node, single-primary InnoDB Cluster.

5. 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) Configure the MySQL Router first and based on those settings, you access your MySQL CS instance.
B) 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.
C) 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.
D) 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.

Solutions: