All of the Following Are True About B+-Tree Indexes and Their

question 91

Multiple Choice

All of the following are true about B+-tree indexes and their files, except _____.

• A) The records of the file are stored in order by key value.
• B) Both a number of tracks and a number of cylinders are held empty in reserve for new record insertion purposes.
• C) Every insertion of a new record requires the use of an empty reserve track or cylinder.
• D) It is possible that a new record insertion can increase the number of levels of the index tree.
• E) The lowest level of the index is stored on the same cylinders as the data.

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Definitions:

REM Sleep

A phase of sleep characterized by rapid eye movements, low muscle tone, and vivid dreams, during which the brain is highly active.

Task-unrelated Thoughts

Thoughts that occur while engaged in a task, which are not directly related to the task at hand, often serving as distractions.

Mind Wandering

A cognitive process where attention shifts away from a primary task to unrelated thoughts or fantasies.

Body Temperature

The measure of the body's ability to generate and get rid of heat, reflecting the balance between heat production and loss.