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Oracle MySQL 2021 Implementation Essentials Sample Questions:

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

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

2. You want to create the user named jenny for any host server with the password secretpassi23! and the password is expired? Which command should you use?

A) CREATE USER ,jenny,@,%, IDENTIFIED WITH sha256_password BY 'SecretPass123!,;
B) CREATE USER ,jenny,0,%t IDENTIFIED BY ,SecretPass123!, PASSWORD EXPIRE;
C) CREATE USER ,jenny,@'%, WITH HASHED(password,,SecretPass123!,), PASSWORD EXPIRE
D) CREATE USER ,jenny,@,localhost, IDENTIFIED BY (,SecretPass123!,,,256,, Expired)
E) CREATE USER ,jenny *@,localhost, IDENTIFIED WITH HASH PASSWORD(,SecretPass123!,)

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

A) 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.
B) MySQL Enterprise Backup will back up from Slave automatically.
C) It allows backup to be done on the slave without impacting the master.
D) MySQL Replication Connector/J (ReplicationDriver) is provided to allow read capability on slave and write capability on master.
E) It provides multi-master access where the application can write and read data across the database servers.

4. 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) VALIDATE FUNCTION create_asymmetric_priv_key WITH ,openssl_udf.so';
C) SET @function = CREATE_ASYMMETRIC_PRIV_KEY(@algo, @key_len);
D) CREATE FUNCTION asymmetric_decrypt RETURNS STRING SONAME ,openss1_udf.so,;

5. An Oracle Cloud Infrastructure customer already has many database instances configured and running in the cloud; however, they are reporting that they are unable to create any more instances.
What could be the problem?

A) The customer reached the database instance limit of 32.
B) The customer has not kept up with their patching requirements; new instances cannot be created unless the majority or the template of existing instances are up-to-date.
C) The customer does not have proper user rights.
D) The customer account might have reached resource quota/limits.

Solutions: