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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. Which component of MySQL Enterprise Monitor provides trend analysis and capacity planning for MySQL databases?
Response:

A) MySQL Advisors
B) MySQL Query Analyzer
C) Query Analyzer
D) MySQL Dashboard

2. 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) User Password
C) Public IP address
D) SSH public key
E) The opc user
F) SSH private key

3. 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) Implementing a three-node, single-primary InnoDB Cluster.
C) Altering the storage engine for all tables to memory to increase performance.
D) Changing the system setting with memory stickiness to true in order not to swap out mysq1dfrom memory.
E) Edit the configuration file and increase the value for parallel_read_workers and reboot the server

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

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

5. Consider this SQL statement which is using the innoDB storage engine and with global AUTOCOMMIT = 1:

What is the result after issuing the rollback command?

A) Only the t2 table is created.
B) Only the t1 table is created.
C) Both the tables, t1 and t2, are not created because there is an explicit ROLLBACK.
D) Both the tables, t1 and t2, are created.

Solutions: