The metacharacters _______ and ________ denote a regular expression class.

Control signals, interfaces between the computer and peripherals, and the memory technology used are all examples of _________ attributes.

Fill in the blank(s) with the appropriate word(s).

Answer the following questions true (T) or false (F)

1. In a switch statement, the default case is always executed. 2. Not including the break statements within a switch statement results in a syntax error.