A binary message consisting of four bits was sent to you by a friend. The message was supposed to be ABAB. Unfortunately, your friend set the bit on the wire once every 2 seconds, but you read the wire once every second. Assuming that the first bit was sent and read at the same time, what message did you receive instead?

Question

Advanced Placement (AP)

Destiny Cooley

23 July, 00:55

A binary message consisting of four bits was sent to you by a friend. The message was supposed to be ABAB. Unfortunately, your friend set the bit on the wire once every 2 seconds, but you read the wire once every second. Assuming that the first bit was sent and read at the same time, what message did you receive instead?

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Pierre Aguilar · Answer 1

Answer: The correct answer is AABB. The bit rate can processed as fast as 8 bits per second. If you are reading every second and they are sending every 2 seconds, you may miss the 2nd bit and read this wrong.

The wire setting is set and will keep B, it will always keep the last setting on the wire.