Problem #6 – A sequence of 12 data bits is sent,with a 13th parity bit added. The parity bit addedis chosen to make the total number of 1's odd.|The bit error rate is 2 x 10-5.(a) What is the probability of no error?(b) What is the probability of a detected error,meaning the parity does not match, and thus therecipient knows either the data or the parity bit isnot valid.(c) What is the probability of an undetected error,meaning the parity matches, but in reality the datareceived is incorrect.

Bit error rate is 0.00002 Probability of no bit error in single bit = 1 - 0.00002 = 0.99998…

Problem #6 – A sequence of 12 data bits is sent, with a 13th parity bit added. The parity bit added is chosen to make the total number of 1's odd. The bit error rate is 2 x 10-5. (a) What is the probability of no error? (h) Wh

Problem #6 – A sequence of 12 data bits is sent, with a 13th parity bit added. The parity bit added is chosen to make the total number of 1's odd. The bit error rate is 2 x 10-5. (a) What is the probability of no error? (h) Wh

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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1-4) For each of the following, assume the machine used is a 5 bit machine. Complete the table by identifying (a) how the decimal value on the left would be stored in 5 bits using a 2s complement representation, and (b) what the equivalent decimal value is for the bit pattern in part (a). number -17 +28 -54 +96 (a) 2's Complement (b) Decimal Equivalent 5) What is the resulting bit pattern when the unsigned 10 bit binary value 1001101101 is stored in an 8 bit container? Name: 6) What is the resulting bit pattern when the signed 10 bit binary value 1110101011 is stored in an 8 bit container? 7) What is the resulting bit pattern when the unsigned 8 bit binary value 1101001 is stored in a 10 bit container?
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Chapter 2: Practice Problems 1. Assume we are running code on a 8-bit machine using two's complement arithmetic for signed integers. A "short" integer is encoded using 4 bits. Fill in the empty boxes in the table below. The following definitions are used in the table: short sy = -3; int y = sy; int x = -17; unsigned ux = x Note: You need not fill in entries marked with "-" Only accepted format for binary representation (use 8-bits): 00000000, 11111111 Only accepted format for hexadecimal representation: 4D, EF, FF Expression Binary Zero ux y X >> 2 Tmax Tmax+Tmin Tmin - 1 Decimal 0 -3 00110010 Hexadecimal