When working with this type of file, you access its data from the beginning of the file to the end of the file.
a. ordered access
b. binary access
c. direct access
d. sequential access
Answer: d. sequential access
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The purpose of input field filtering is:
a. To prevent input injection attacks b. To detect application scanning c. To prevent SQL injection attacks d. To detect unsafe code
The following code compiled, but while running it the program appears to hang (e.g. nothing happens). This is a sign that there may be an infinite loop. What part of this code fragment may be causing an infinite loop?
``` while(i < 50); { System.out.println(i); i+=2; } ```
The keyword ______ represents an empty statement.
Fill in the blank(s) with the appropriate word(s).
This famous problem involves placing grains of wheat on the squares of a chessboard. A single grain of wheat is placed on the first square. Two grains are placed on the next square and four grains on the next. The board is filled with wheat, each square receiving twice that of the preceding square, until all 64 squares are filled. Of course, the number of grains of wheat become far too great to
fit on a square, or on the entire board, or even the room that holds the board. Express the number of grains that belong on the final square as 2 raised to a power.