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100% Pass 2025 Oracle Updated 1Z0-908: MySQL 8.0 Database Administrator Test Passing Score

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To qualify for the Oracle 1z1-908 exam, candidates need to have in-depth knowledge of relational databases, including database design, SQL queries, and data modeling. They should also have experience working with MySQL 8.0 databases in production environments. Candidates must demonstrate experience in managing large, complex databases and understanding of different database administration tasks and methodologies.

Oracle 1z1-908 Exam consists of 70 multiple-choice questions and has a time limit of 105 minutes. 1Z0-908 Exam covers a wide range of topics related to MySQL 8.0 database administration, including database architecture and design, installation and configuration, user and security management, backup and recovery, performance tuning, and troubleshooting. Candidates are required to have a solid understanding of all of these topics in order to pass the exam and earn their certification. Studying for the exam typically involves a combination of self-study materials, online courses, and hands-on experience working with MySQL 8.0 databases.

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Oracle MySQL 8.0 Database Administrator Sample Questions (Q92-Q97):

NEW QUESTION # 92
An attempt to recover an InnoDB Cluster fails.
Examine this set of messages and responses:
host3:3377 ssl JS > dba.rebootClusterFromCompleteOutage() Reconfiguring the default cluster from complete outage...
The instance 'host1:3377'' was part of the cluster configuration. Would you like to rejoin it to the cluster? [y/N]: y The instance 'host2:3377' was part of the cluster configuration. Would you like to rejoin it to the cluster? [y/N]: y Dba.rebootClusterFromCompleteOutage: The active session instance isn't the most updated in comparison with the ONLINE instances of the Cluster's metadat a. Please use the most up to date instance: 'host1:3377'. (RuntimeError) Which statement is true?

A. The cluster is running and there is at least one ONLINE instance.
B. The instance deployed on host3 must be rebuilt with a backup from the primary instance.
C. It is possible to determine the most up-to-date instance by comparing different global transaction identifier (GTID) sets with GTID_SUBSET(set1,set2).
D. The instance deployed on host3 must be synchronized from a donor deployed on host1 by using the command cluster.addInstance('host1:3377').
E. The active session instance is invalid and must be re-created by using the command shell.connect ('host3:3377').

Answer: D

NEW QUESTION # 93
You made some table definition changes to a schema in your MySQL Server.
Which two statements reflect how MySQL Server handles the table definition changes? (Choose two.)

A. MySQL writes SDI to the binary log for distributed backups.
B. MySQL implicitly executes FLUSH TABLES and stores a snapshot backup of the metadata.
C. MySQL keeps InnoDB metadata changes in .sdi files in datadir.
D. The metadata is serialized in JSON format in Serialized Dictionary Information (SDI).
E. MySQL Server stores a copy of the serialized data in the InnoDB user tablespace.

Answer: D,E

NEW QUESTION # 94
Which two are use cases of MySQL asynchronous replication? (Choose two.)

A. It guarantees near real-time replication between a master and a slave.
B. It allows backup to be done on the slave without impacting the master.
C. MySQL Enterprise Backup will automatically back up from an available slave.
D. You can scale writes by creating a replicated mesh.
E. You can scale reads by adding multiple slaves.

Answer: B,E

NEW QUESTION # 95
There are five MySQL instances configured with a working group replication.
Examine the output of the group members:

Which two statements are true about network partitioning in the cluster? (Choose two.)

A. There could be both a 2 node and 3 node group replication still running, so shutting down group replication and diagnosing the issue is recommended.
B. The cluster will shut down to preserve data consistency.
C. A manual intervention to force group members to be only the working two instances is required.
D. The group replication will buffer the transactions on the online nodes until the unreachable nodes return online.
E. The cluster has built-in high availability and updates group_replication_ip_whitelist to remove the unreachable nodes.

Answer: B,E

NEW QUESTION # 96
Examine this statement, which executes successfully:

Now examine this query:

Which two statements can do this? (Choose two.)

A. ALTER TABLE employees -
ADD INDEX ((MONTH(birth_date)));
B. ALTER TABLE employees -
ADD COLUMN birth_month tinyint unsigned GENERATED ALWAYS AS (birth_date->>'$.month') VIRTUAL NOT NULL, ADD INDEX (birth_month);
C. ALTER TABLE employees -
ADD INDEX ((CAST(birth_date->>'$.month' AS unsigned)));
D. ALTER TABLE employees -
ADD INDEX (birth_date DESC);
E. ALTER TABLE employees -
ADD COLUMN birth_month tinyint unsigned GENERATED ALWAYS AS (MONTH(birth_date)) VIRTUAL NOT NULL, ADD INDEX (birth_month);
F. ALTER TABLE employees -
ADD INDEX (birth_date);

Answer: B,D

NEW QUESTION # 97
......

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