Which method of database recovery involves undoing unwanted changes to the database, such as undoing a partially completed transaction interrupted by a power failure?
A) Mirroring
B) Reprocessing
C) Rollback
D) Rollforward
E) None of the above
Answer: C) Rollback
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In the expression double score[10]; double is called the ___________ of the array
Fill in the blank(s) with the appropriate word(s).
Write a function that counts the characters in a string the user inputs. Then write a routine that calls the function and displays the following output. $ ./count_letters.py Enter some words: The rain in Spain The string "The rain in Spain" has 17 characters in it.
What will be an ideal response?
If you press Enter after typing in five underscore characters:
A) a page break is inserted. B) five more underscore characters will be inserted. C) the underscore characters will be converted to a hyphen. D) they are converted into a horizontal line.
The average amount of time until the next hardware failure is known as __________.
A. ??mean time between failure (MTBF) B. ?mean time to diagnose (MTTD) C. ?mean time to failure (MTTF) D. ?mean time to repair (MTTR)