a) Given a remainder (CRC) is 101, a data unit is 11010111 and a divisor is x4+ x2 + 1. Is there any error in the data unit? Show your calculation.Your answer: b) Assume that the receiver receives the pattern of data:10101111 11110101 01011011. Is there any error in the data unit? Perform the error checking procedure by using checksum. Show your calculation and explain your answer carefully.

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Answered: a) Given a remainder (CRC) is 101, a…

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

Section: Chapter Questions

Problem 1PE

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a) Given a remainder (CRC) is 101, a data unit is 11010111 and a divisor is x⁴+ x²+ 1. Is there any error in the data unit? Show your calculation.

Your answer:

b) Assume that the receiver receives the pattern of data:10101111 11110101 01011011. Is there any error in the data unit? Perform the error checking procedure by using checksum. Show your calculation and explain your answer carefully.

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