It Is Possible for Local DBMSs to Commit Updates at Some

question 44

Multiple Choice

It is possible for local DBMSs to commit updates at some sites and undo updates at other sites. How can this inconsistency be prevented?

• A) using a two-step rollback
• B) using a two-phase commit
• C) using a two-phase rollback
• D) using a two-phase transaction

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Definitions:

Lung Crackles

Sounds heard through a stethoscope that are produced by fluid in the airways or alveoli during breathing, often associated with respiratory conditions.

Dyspnea

A medical term for difficulty breathing or shortness of breath, often experienced as a feeling of tightness in the chest.

Cardiovascular Assessment

A comprehensive evaluation of the heart and blood vessels' function and health, often involving physical examination, blood tests, and imaging studies.

Heart Sounds

Noises generated by the beating heart and the resultant flow of blood through it, which can be normal or indicative of heart disease, often heard with a stethoscope.