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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. Which three are recommended configurations for installing and running MySQL InnoDB Cluster?

A) The number of machines per group must be 3, 5, 7 or 9.
B) Networks must be in separate regions.
C) Groups must be in even numbers; 2, 4, 6, 8.
D) use SSD,s for data and replication logs
E) isolated machine resources
F) smaller VM,s work best - with a maximum of eight vCPU,s and 16GB of RAM
G) Use Network-attached storage (NAS) for the data files.

2. Which MySQL Enterprise Edition plug-in replaces real values with substitutes?

A) MySQL Enterprise Scalability
B) MySQL Enterprise No-Login Authentication
C) MySQL Enterprise Transparent Data Encryption (TDE)
D) MySQL Enterprise Data Masking and De-identification
E) MySQL Enterprise Audit

3. 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 TCP/IP over SSH and based on the created private key, opc-User, and MySQL access credentials, you can access the MySQL OCI instance.
B) Configure the MySQL Router first and based on those settings, you access your MySQL CS instance.
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) 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.

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

A) Changing the system setting with memory stickiness to true in order not to swap out mysq1dfrom memory.
B) Adding a memcached-tier for caching data and objects in RAM to reduce the number of times an external data source must be read.
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 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,@,localhost, IDENTIFIED BY (,SecretPass123!,,,256,, Expired)
C) CREATE USER ,jenny *@,localhost, IDENTIFIED WITH HASH PASSWORD(,SecretPass123!,)
D) CREATE USER ,jenny,@'%, WITH HASHED(password,,SecretPass123!,), PASSWORD EXPIRE
E) CREATE USER ,jenny,0,%t IDENTIFIED BY ,SecretPass123!, PASSWORD EXPIRE;

Solutions: