Oracle MySQL Implementation Associate : 1Z1-922 Exam Questions

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Oracle 1Z1-922 Exam Syllabus Topics:

Oracle MySQL Implementation Associate Sample Questions:

1. What does the FOREIGN KEY constraint do in MySQL?

A) Creates an index for a column
B) Ensures that all values in a column are unique
C) Prevents NULL values in a column
D) Enforces a relationship between two tables

2. What does the --incremental option in mysqlbackup do?

A) Backs up only the binary logs
B) Backs up only the changes since the last backup
C) Restores the database from a previous backup
D) Backs up only the database structure

3. In a MySQL InnoDB Cluster, what is a quorum and why is it important?

A) It is a backup system for the cluster
B) It is a set of SQL queries used for replication
C) It is a majority of nodes needed to commit a transaction
D) It is the process of manually promoting a replica

4. What is a key benefit of using read-write splitting in MySQL InnoDB Cluster?

A) Automatic failover for writes
B) Reduced storage requirements
C) Improved performance for read-heavy workloads
D) Faster transaction commits

5. Which storage engine is optimized for read-heavy workloads and does not support transactions?

A) CSV
B) NDB
C) MyISAM
D) InnoDB

Solutions: