1. Suppose that a message 1001 1100 1010 0011 is transmitted using Internet Checksum (4-bit word). What is the value of the checksum? 2. What is the remainder obtained by dividing x 7 + x 5 + 1 by...

1. Suppose that a message 1001 1100 1010 0011 is transmitted using Internet Checksum (4-bit word). What is the value of the checksum?

2. What is the remainder obtained by dividing x 7 + x 5 + 1 by the generator polynomial x 3 + 1?