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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. You want to change the default behavior of MySQL Enterprise Monitor (MEM). New instances detected by a MEM agent should automatically monitor discovered instances.
How can you change the Advisor Setting?

A) Go to the configuration section (MEM) and configure the default login credentials.
B) Go to the configuration section (Advisors) and edit the default settings of the MySQL Process Discovery according to the existing users of your new MySQL instances.
C) Go to the configuration section (Advisors) and create a new advisor rule for new MySQL instances based on the MySQL Advisor Wizard.
D) Go to the configuration section (Users) and create a new user according to the existing users of your new MySQL instances.

2. Which two statements are true about MySQL Enterprise Authentication?

A) MySQL Enterprise Authentication makes it more difficult to set up security because you have different sets of security policies.
B) MySQL Enterprise Authentication determines what operation the user can perform.
C) MySQL Enterprise Authentication supports Windows Active Directory.
D) MySQL Enterprise Edition automatically connects to Oracle Password Vault to verify user passwords..
E) MySQL Enterprise Authentication supports Linux Pluggable Authentication Modules (PAM).

3. Which is a correct example of creating an Enterprise Encryption function?

A) INSERT INTO t1 (key_co1) FUNCTION(CREATE_ASYMMETRIC_PRIV_KEY(,RSA,, 1024));
B) CREATE FUNCTION asymmetric_decrypt RETURNS STRING SONAME ,openss1_udf.so,;
C) VALIDATE FUNCTION create_asymmetric_priv_key WITH ,openssl_udf.so';
D) SET @function = CREATE_ASYMMETRIC_PRIV_KEY(@algo, @key_len);

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

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

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

Solutions: