A. 256

B. 128

C. 64

D. 512

### Check Answer

The correct answer is

A 7-bit code can represent 2^7 (2 raised to the power of 7) different bit patterns because there are 2 possible values (0 or 1) for each of the 7 bits. Therefore, the total number of bit patterns provided by a 7-bit code is 2^7 = 128.

**B) 128**.A 7-bit code can represent 2^7 (2 raised to the power of 7) different bit patterns because there are 2 possible values (0 or 1) for each of the 7 bits. Therefore, the total number of bit patterns provided by a 7-bit code is 2^7 = 128.

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