Why must backups be tested?
A) To determine the cost if they are needed during a disaster recovery
B) Without knowing that they can be recovered, backups are useless
C) To determine if they are needed
D) All of the above
B
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A context free grammar is also called a ______ grammar.
Fill in the blank(s) with the appropriate word(s).
A letter detected during numeric input __________.
a. is ignored b. terminates the reading of the current numeric input value c. causes the program to skip to the next line of coded d. causes the program to skip to the next line of data e. causes the program to crash
Many databases contain a large amount of data. ________ are created and used to increase performance
A) Input masks B) Indexes C) Validation rules D) Captions
Each symbolic assembly language instruction is translated into one machine language instruction.
Answer the following statement true (T) or false (F)