ITPEC IP April 2018 Question 1
ITPEC IP April 2018 — Question 1 of 100
The sum is the binary value shown in option (d). Convert or add directly: 01011010 is 90 and 01101011 is 107, so the total is 197. Expressing 197 as an 8-bit binary value gives 128 + 64 + 4 + 1, which is 11000101.
Answer (d)
Why not others:
- 00110001 is 49
- 01111101 is 125
- 10000100 is 132
- none of these equals 197
Key rule: In binary addition, add from right to left and carry whenever a column totals two or more; an unsigned 8-bit value can represent 0 through 255.
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