A __________ cipher is one in which a block of plaintext is treated as a whole and used to produce a ciphertext block of equal length.

The outline bar along the left side of a worksheet enables you to show and hide levels of detail with a single mouse click

Indicate whether the statement is true or false

The C compiler ignores __________ characters like blanks, tabs and newlines used for indentation and vertical spacing.

a) transparent b) translucent c) white d) whitespace