Question

What is ASCII "Hi" in hexadecimal (watch character case)?

A. 48 49

B. 38 2F

C. 28 69

D. 48 69

E. None of the above

Answer 1

For conversion we will seperate both the characters i.e., 'H' and 'i'.

Now, the ASCII code for 'H' is 72 and for 'i' is 105.

Converting these ASCII values into binary,

72 -> 1001000 (2^6*1 + 2^5*0 + 2^4*0 + 2^3*1 + 2^2*0 + 2^1*0 + 2^0*0 = 72)

105 -> 1101001 (2^6*1 + 2^5*1 + 2^4*0 + 2^3*1 + 2^2*0 + 2^1*0 + 2^0*1 = 105)

To convert decimal to hexadecimal we can use table below :

To convert to hexadecimal, we have to make group of four bits as shown below and get the value from table,

So, the answer is,

D. 48 69