AWS Certified Advanced Networking – Specialty (ANS-C00) — Question 260

What number does the binary number 10101000 correspond to?

Answer options

• A. 168
• B. 128
• C. 192
• D. 160

Correct answer: A

Explanation

The binary number 10101000 converts to decimal as follows: 1*2^7 + 0*2^6 + 1*2^5 + 0*2^4 + 1*2^3 + 0*2^2 + 0*2^1 + 0*2^0, which equals 128 + 32 + 8 = 168. The other options represent different binary values and do not equal 10101000.