Perfective maintenance usually is cost effective _____ a system's operational life.?
A. ?early in
B. ?during the middle of
C. ?during the end of
D. ?throughout
Answer: B
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Answer the following statements true (T) or false (F)
1. When the break statement is encountered in a loop, all the statements in the body of the loop that appear after it are ignored, and the loop prepares for the next iteration. 2. When the continue statement is encountered in a loop, all the statements in the body of the loop that appear after it are ignored, and the loop prepares for the next iteration. 3. A file must always be opened before using it and closed when the program is finished using it. 4. In a for loop, the control variable is always incremented.
A Statement object allows you to ____________
a) connect to a database b) load a database driver c) execute SQL to retrieveor modify data in a database d) None of the above.
The ability to run multiple programs at the same time is known as:
A. multitasking B. defragmenting C. formatting D. partitioning
Intermediate stream operations are _______________ —they aren’t performed until a terminal operation is invoked.
Fill in the blank(s) with the appropriate word(s).