Which of the Following Is Not True About Two-Phased Locking

question 78

Multiple Choice

Which of the following is not true about two-phased locking?

• A)Can make transactions serializable
• B)Uses only shared locks
• C)Has a growing phase
• D)Has a shrinking phase
• E)Cannot obtain a new lock once a lock has been released

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Definitions:

Probability

The measure of the likelihood that an event will occur, quantified between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Standard Normal Distribution

A standard normal distribution characterized by a mean of 0 and a standard deviation of 1.

Values of Z

Refers to the scores derived from a standard normal distribution used in statistical analysis to determine probabilities.

Mean

The average value of a set of numbers, calculated by dividing the sum of all values by the number of values.