I am asked to submit the 21-digit string as my answer. Without any spaces or X oe Y in the string. can you tell me that?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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I am asked to submit the 21-digit string as my answer. Without any spaces or X oe Y in the string. can you tell me that?

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Step 1

When spreading out the string 1111100011101100 to include parity bits, we first need to determine the number of parity bits required to cover the string.

To determine the number of parity bits, we can use the formula 2^r ≥ m + r + 1, where r is the number of parity bits and m is the number of data bits.

In this case, m = 16, so we need to find the smallest value of r that satisfies 2^r ≥ 16 + r + 1.

Trying different values of r, we find that r = 5 satisfies the condition, as 2^5 = 32 ≥ 22 = 16 + 5 + 1. Therefore, we need 5 parity bits to cover the string.

 

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I need the hamming encoded version of 1111100011101100

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