How are dw and dd different from db directives for strings?

Question

Let\'s say I want to define a initialized variable string before running my assembly program (in section .data). The variable I chose to create is called

Answer 1

I want to clarify something:

example: db 'ABCDE';

This reserves 5 bytes in total, each containing a letter.

ex2: db 1 ;

reserves a byte that contains 1

ex3: db "cool;

reserves 4 bytes and each byte contains a letter

ex4: db "cool", 1, 3;

reserves 3 bytes?

answers: ex4 is 6 bytes