Which switch should be used in the DIR command to view files in all directories?
A). /p
B). /w
C). /s
D). /l
1. Upper Memory blocks are located where?
2. What will be the output of the following PHP code?<?php echo hex2bin("48656c6c6f20576f726c6421");?>
3. A solid diamond represents a stronger form of aggregation, known as composition.