Even parity assignment Given the 7-bit code 1100001, append a single parity bit so that the overall 8-bit word has even parity.

Introduction / Context:Parity bits are used in simple error detection schemes. With even parity, the total number of 1s in the transmitted word (data bits + parity bit) must be even.

Given Data / Assumptions:

• Data bits: 1100001.
• We will prepend one parity bit to form an 8-bit word.
• Even parity required.

Concept / Approach:Count the number of 1s in the data. If the count is odd, set parity bit = 1 to make the total even; if the count is even, set parity bit = 0.

Step-by-Step Solution:

Verification / Alternative check:Try parity bit = 0 → 01100001 gives 3 ones (odd), which violates even parity. Therefore parity bit must be 1.

Why Other Options Are Wrong:

• 1100001: No parity bit added.
• 01100001: Parity bit 0 yields odd total 1s.
• 01110101: Unrelated pattern; parity does not align with the given data bits.

Common Pitfalls:Appending parity at the wrong end, miscounting the number of ones, or confusing even with odd parity.

Final Answer:11100001