In an AND decision, why is it good practice to make the first question the one that is less likely to be true?
A. This eliminates all instances of the second decision.
B. This eliminates as many instances of the second decision as possible.
C. This eliminates evaluation of the first decision.
D. This makes program execution longer.
Answer: B
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Consider the following interleaving of transactions T and U:
The outcome of optimistic concurrency control with backward validation is that T will be aborted because its read operation conflicts with U's write operation on ai, although the interleavings are serially equivalent. Suggest a modification to the algorithm that deals with such cases.
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What will be an ideal response?
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Fill in the blank(s) with correct word
Elements and events are organized along a timeline in a(n) ____________________ authoring system.
Fill in the blank(s) with the appropriate word(s).