Oracle 1Z0-908 Exam Actual Questions

Name: MySQL 8.0 Database Administrator
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The questions for 1Z0-908 were last updated on Oct 3, 2024.

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Question No. 1

Examine this partial output for InnoDB Cluster status:

Which statement explains the state of the instance deployed on host2?

AIt can be recovered from a donor instance on host3 by cloning using the command cluster.rejoinInstance ('<user>@host3:3377')

BIt can rejoin the cluster by using the command cluster.addInstance('<user>@host3:3377')

CIt has been removed from the cluster by using the command STOP GROUP_REPLICATION;

DIt can rejoin the cluster by using the command dba.rebootClusterFromCompleteOutage()

EIt has been expelled from the cluster because of a transaction error.

Show Answer

Correct Answer: D

Question No. 2

You are using an existing server with a new configuration. MySQL Server fails to start.

Examine this snapshot of the error log:

Which action would allow the server to start?

ARemove ib_logfile0 and ib_logfile1 files from the file system.

BExecute mysqladmin flush-logs.

CFirst run mysqld --initialize to refresh the Size of ib_logfile.

DCreate a new ib_logfile0 file of size 26214400.

Show Answer

Correct Answer: C

Question No. 3

You are asked to review possible options for a new MySQL instance. It will be a large, busy reporting data warehousing instance.

[mysql]

innodb_data_file_path=

Which two configurations would satisfy long-term storage demands? (Choose two.)

Aibdatal:12M;ibdata2:12M;ibdata3:12M

Bibdatal:12M:autoextend;ibdata2:12M:autoextend

Cibdatal:12M:autoextend

Dibdatal:12M;ibdata2:12M:autoextend

Eibdatal:12M

Fibdatal:12M;/tmp/ibdata2:12M:autoextend

Show Answer

Correct Answer: A, E

Question No. 4

Examine this statement, which executes successfully:

Now examine this query:

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

AALTER TABLE employees -
ADD INDEX (birth_date DESC);

BALTER TABLE employees -
ADD INDEX ((MONTH(birth_date)));

CALTER TABLE employees -
ADD COLUMN birth_month tinyint unsigned GENERATED ALWAYS AS (MONTH(birth_date)) VIRTUAL NOT NULL,
ADD INDEX (birth_month);

DALTER TABLE employees -
ADD COLUMN birth_month tinyint unsigned GENERATED ALWAYS AS (birth_date->>'$.month') VIRTUAL NOT NULL,
ADD INDEX (birth_month);

EALTER TABLE employees -
ADD INDEX ((CAST(birth_date->>'$.month' AS unsigned)));

FALTER TABLE employees -
ADD INDEX (birth_date);

Show Answer

Correct Answer: A, D

Question No. 5

Which three sets of item information are visible in the mysql system database? (Choose three.)

Ahelp topics

Bperformance monitoring information

Cplugins

Dinformation about table structures

Eaudit log events

Frollback segments

Gtime zone information and definitions

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Correct Answer: A, C, F

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