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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. Which three are requirements for MySQL Group Replication (GR)?

A) GR only works with MySQL versions 8.0.12 or higher.
B) Data to be replicated must be stored in the InnoDB transactional storage engine.
C) The use of global transaction identifiers is required.
D) The binary log format must be set to mixed.
E) The minimum number of required nodes for achieving a consensus is two.
F) Primary keys are required on every replicated table.

3. The user 'fwuser'@'localhost% was registered with the MySQL Enterprise Firewall and was granted privileges for the SAKILA database. You executed the commands:

You want to clear the account whitelist for the * fwuser" @* localhost* user. Which statement should you run to accomplish this?

A)

B)

C)

4. Which best describes database horizontal scale-out architecture deployment in MySQL in a read-heavy environment?

A) Deploy MySQL read-only slaves utilizing replication so that the slaves can be used for reads.
B) Adding more MySQL servers and sharing the same dacadir on a shared storage component like NFS.
C) Increasing the storage capacity so that the database can store more data to scale.
D) Allocating more CPU to the database instance to improve throughput performance.
E) Increasing the memory capacity so that there is a larger pooling buffer to increase the database read performance.

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

Solutions: