[UPDATED Sep-2025] Best Value Available Preparation Guide for 1Z0-922 Exam [Q52-Q66]

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[UPDATED Sep-2025] Best Value Available Preparation Guide for 1Z0-922 Exam

1 Full 1Z0-922 Practice Test and 360 Unique Questions, Get it Now!

QUESTION 52
Which replication topology allows each server to act as both a primary and a replica, enabling updates on any server?

Primary-replica replication

Circular replication

Multi-primary replication

Synchronous replication

Multi-primary replication (also known as multi-master replication) allows updates on any server in the topology, with changes being replicated to all other servers.

QUESTION 53
What is the role of the HeatWave Cluster in MySQL Database Service (MDS)?

It provides high availability through failover

It accelerates analytic queries by running them in-memory

It backs up data to the cloud

It enables data replication across regions

The HeatWave Cluster accelerates analytic queries by processing them in-memory. This significantly improves query performance for data analytics workloads in MySQL Database Service (MDS).

QUESTION 54
When setting up a MySQL Enterprise Server, which parameter in the my.cnf file controls the size of the InnoDB buffer pool?

innodb_buffer_pool_size

max_buffer_size

query_cache_size

innodb_log_buffer_size

The innodb_buffer_pool_size parameter in the my.cnf file specifies the size of the buffer pool in MySQL. A larger buffer pool size can improve performance by reducing disk I/O.

QUESTION 55
Which replication topology is best suited for consolidating data from multiple sources into a single replica?

Multi-primary replication

Circular replication

Multi-source replication

Group replication

Multi-source replication allows a single replica to receive data from multiple primary servers. This is ideal for consolidating data from various sources into a single, unified replica.

QUESTION 56
Which MySQL command is used to delete a table from a database?

DROP TABLE

DELETE TABLE

REMOVE TABLE

TRUNCATE TABLE

The DROP TABLE command is used to permanently delete a table and its data from the database.

QUESTION 57
Which MySQL Enterprise feature helps with real-time query blocking to protect against SQL injection attacks?

MySQL Enterprise Monitor

MySQL Query Cache

MySQL Enterprise Firewall

MySQL InnoDB Cluster

MySQL Enterprise Firewall monitors and blocks SQL queries in real-time, preventing unauthorized database access and SQL injection attacks.

QUESTION 58
What is the benefit of MySQL Enterprise Authentication integrating with Active Directory?

It improves query performance

It allows centralized management of user credentials

It enables database replication

It provides automatic database backups

By integrating with Active Directory, MySQL Enterprise Authentication allows organizations to centralize user credential management, simplifying the process of user authentication and improving security through single sign-on (SSO).

QUESTION 59
Which MySQL high availability feature provides a solution for automatic recovery after the failure of a primary server?

Asynchronous replication

Semi-synchronous replication

MySQL InnoDB Cluster

Multi-source replication

MySQL InnoDB Cluster offers automatic recovery and high availability by promoting a new primary server in the event of a failure, ensuring the database remains available without manual intervention.

QUESTION 60
What happens in a MySQL InnoDB Cluster if the primary node fails and no quorum is reached?

The cluster stops processing transactions

The next available node is promoted to primary

All nodes are automatically restored

Replication switches to asynchronous mode

If no quorum is reached in a MySQL InnoDB Cluster, the cluster cannot process transactions until a majority of nodes agree on the promotion of a new primary, ensuring data consistency and avoiding split- brain scenarios.

QUESTION 61
Which component of MySQL is responsible for parsing SQL queries and generating an execution plan?

Storage Engine

MySQL Server

Query Optimizer

Information Schema

The Query Optimizer in MySQL is responsible for parsing SQL queries and generating an optimal execution plan for retrieving or modifying data. It decides the best way to execute a query based on available indexes, table statistics, and other factors.

QUESTION 62
What is the purpose of vectorized query processing in the HeatWave Cluster?

To compress data during storage

To optimize OLTP queries

To process multiple rows of data simultaneously for faster execution

To handle failover for analytic queries

Vectorized query processing in the HeatWave Cluster processes multiple rows of data simultaneously using CPU vector instructions. This allows for faster execution of large-scale analytical queries by minimizing the overhead associated with row-by-row processing.

QUESTION 63
How does the HeatWave Cluster in MySQL Database Service (MDS) achieve high performance for analytical queries?

By caching results in the query cache

By using vectorized query execution in memory

By compressing all data before executing queries

By distributing all queries to the binary log

HeatWave achieves high performance for analytical queries through vectorized query execution, which processes data in large chunks in memory, significantly speeding up complex query operations.

QUESTION 64
Which MySQL configuration option is used to disable binary logging?

disable_log_bin

skip-binlog

log-bin=0

skip-log-bin

The skip-log-bin option can be used in the MySQL configuration file (my.cnf) to disable binary logging. Binary logging is used for replication and data recovery, but in some cases, you might want to disable it to avoid extra disk usage.

QUESTION 65
What is the role of MySQL Router in a high availability environment?

It logs transactions for replication

It routes traffic to available and healthy nodes in the cluster

It balances load between primary and replica servers

It manages backup operations

MySQL Router routes traffic to available and healthy nodes in a MySQL InnoDB Cluster, ensuring high availability by distributing client connections to functioning servers.

QUESTION 66
Which MySQL Enterprise Edition feature allows you to track database activity in order to meet compliance requirements?

MySQL Enterprise Firewall

MySQL Enterprise Monitor

MySQL Enterprise Audit

MySQL Enterprise Backup

MySQL Enterprise Audit helps organizations track database activities and maintain compliance with regulations such as GDPR or HIPAA by logging user access and changes to the database.

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