According to the CQL 3.0 specification :
____A UUID constant is defined by hex{8}-hex{4}-hex{4}-hex{12} where hex is an
hexadecimal character, e.g. [0-9a-fA-F]and {4} is the number of such
characters. ____
Cassandra UUID representation = 28 characters , 112 bits , 14 bytes
But...
A UUID is a ____ 16-byte (128-bit) ____ number. In its canonical form, a UUID
is represented by 32 hexadecimal digits, displayed in five groups separated by
hyphens, in the form 8-4-4-4-12 for a _____ total of 36 characters _______ (32
digits and four hyphens).
Standard UUID representation = 36 characters , 128 bits , 16 bytes
