O Calculate the total number of bits used in downloading a 50 MB video file. Also calculate the time (in minutes) it takes to download the same video file, if the download link is a telephone line with 9600 baud rate. Assume 8 - bits of data per character, 1 – start bit, 1 - stop bit, and 1 parity bit. -

O Calculate the total number of bits used in downloading a 50 MB video file. Also calculate the time (in minutes) it takes to download the same video file, if the download link is a telephone line with 9600 baud rate. Assume 8 - bits of data per character, 1 – start bit, 1 - stop bit, and 1 parity bit. -

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

See similar textbooks

Similar questions

6. Encode the following bit stream: 10000000 00000000 10001100 01110000 a) using HDB3 b) using B8ZS c) using B6ZS
50. If the DES key with parity bit is 0x0123ABCD25621456, find the round key 9 and 16.
computer network 32. Given a binary data flow D as 10110, the bit pattern G as 10011, please calculate r CRC bits, i.e., R, such that is exactly divisible by G (mod 2).
Problem 1. Byte Stuffing Decode the following "raw" sequence of bits into bytes using HDLC decoding. 111110111001111101
Suppose a file of 10,000 bytes is to be sent over a line at 2400 bps. A. Calculate the overhead in bits and time in using asynchronous communication. Assume one start bit and a stop element of length one bit, and 8 bits to send the byte itself for each character. The 8-bit character consists of all data bits, with no parity bit. B. Calculate the overhead in bits and time using synchronous communication. Assume that the data are sent in frames. Each frame consists of 1000 characters = 8000 bits and an overhead of 48 control bits per frame. C. What would the answers to parts (a) and (b) be for a file of 100,000 characters?
Problem 1) For each string of data below, determine the EDC bit if single-bit odd parity is used, and calculate the percent increase in the message length. a) 0010 11012 b) 1101 01102 c) 1100 1111 0101 11012 d) 0101 1110 1110 1100₂
with this seed: 0001010011111010 generate the first 32 bits of output for the following LFSR. x10 x11 x12 x13 x14x15x16 x5 x7
51. Prepare a datafile for the ADJUST program to solve the following horizontal network. 4323.793 4148 349 4558.156 Az90d 3086.928 R 6983.374, 0.000 2165 823 287.737
downvote if wrong or copied
Part A: Using a writing speed of 800 Mbits/s, how long would it take to store a 40 GB raw video file on a blue ray disk? How small would the 40 GB raw video file become if it is compressed with a compression ratio of 8. Part B: Taking the speed of the radio signal as 3×100 meters per second, calculate the time taken for a signal to reach a GPS receiver from a GPS satellite at a position 20000 km distant from the receiver. Assume that the speed of the signal is unchanged over the whole path length. Express your answer in milliseconds.
Using an online AES calculator, show the output of two blocks that differ by exactly one bit. a. Create the equivalent of 1 block of data (128-bits), set a key, use ECB mode and run the calculator. Show the resulting screen. b. Modify the plaintext data to differ by exactly one bit and run the calculator with the same key and mode as in part a. Show the new resulting output values. c. List two observations about the results of parts a and b above.
Suppose a file of 10,000 bytes is to be sent over a line at 2400 bps. A. Calculate the overhead in bits and time in using asynchronous communication. Assume one start bit and a stop element of length one bit, and 8 bits to send the byte itself for each character. The 8-bit character consists of all data bits, with no parity bit. B. Calculate the overhead in bits and time using synchronous communication. Assume that the data are sent in frames. Each frame consists of 1000 characters = 8000 bits and an overhead of 48 control bits per frame. C. What would the answers to parts (a) and (b) be for a file of 100,000 characters?