更新する1Z1-922復習テキスト & 合格スムーズ1Z1-922テストトレーニング | 真実的な1Z1-922対応問題集練習資料は通常、試験に必要な試験問題を復習、練習、および記憶するためのツールと見なされ、それらに多くの時間を費やすことで、勝つ可能性を高めることができます。ただし、当社の1Z1-922トレーニング資料は、従来の練習資料よりも条件が良く、効果的に使用できます。 1Z1-922実践ガイドが非常に多くのヘルプを提供できるように、ヘルプを提供することが主な責任であると考えています。最も一般的なのは、1Z1-922試験問題の効率性です。 20〜30時間勉強します。 Oracle MySQL Implementation Associate 認定 1Z1-922 試験問題 (Q313-Q318):質問 # 313
What is the purpose of the InnoDB Lock Monitor?
A. To track query execution times
B. To manage query cache usage
C. To monitor table and row-level locks within InnoDB
D. To log database backups
正解：C
解説：
The InnoDB Lock Monitor helps track table and row-level locks within InnoDB, providing valuable information about lock contention and helping to optimize performance in multi-user environments.
質問 # 314
Which MySQL datatype would be most appropriate for storing a social security number?
A. VARCHAR
B. INT
C. FLOAT
D. DECIMAL
正解：A
解説：
VARCHAR is the best datatype for storing a social security number because it often contains non- numeric characters such as hyphens, and the number itself is not used in calculations.
質問 # 315
Which MySQL keyword is used to ensure that a column's value is unique across all rows?
A. INDEX
B. UNIQUE
C. DISTINCT
D. NOT NULL
正解：B
解説：
The UNIQUE constraint ensures that all values in a column are unique across all rows in a table, preventing duplicates.
質問 # 316
How do you specify the character set for a database in MySQL when creating it?
A. CREATE DATABASE db_name DEFAULT CHARSET 'utf8';
B. CREATE DATABASE db_name CHARSET=utf8;
C. CREATE DATABASE db_name DEFAULT CHARSET=utf8;
D. CREATE DATABASE db_name CHARSET 'utf8';
正解：C
解説：
To specify the character set during database creation, use DEFAULT CHARSET=utf8 (or any other desired character set) in the CREATE DATABASE statement.
質問 # 317
Which MySQL Enterprise Edition feature is useful for online backups of large databases?
A. MySQL Dump
B. MySQL Replication
C. MySQL Enterprise Backup
D. MySQL Shell
正解：C
解説：
MySQL Enterprise Backup allows for online, non-blocking backups of large databases, making it a valuable tool for enterprises that need to minimize downtime and data loss during backup operations.
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