Prove that the Internet checksum computation shown in the text is independent of byte order (host order or network order) except that the bytes in the final checksum should be swapped later to be in the correct order. Specifically, show that the sum of 16-bit words can be computed in either byte order. For example, if the one's complement sum (denoted by +') of 16-bit words is represented as follows, [A,B] +' [C,D] +' . .. +' [Y,Z] the following swapped sum is the same as the original sum above: [B,A] +' [D,C] +' ... +' [Z,Y]

Prove that the Internet checksum computation shown in the text is independent of byte order (host order or network order) except that the bytes in the final checksum should be swapped later to be in the correct order. Specifically, show that the sum of 16-bit words can be computed in either byte order. For example, if the one's complement sum (denoted by +') of 16-bit words is represented as follows, [A,B] +' [C,D] +' . .. +' [Y,Z] the following swapped sum is the same as the original sum above: [B,A] +' [D,C] +' ... +' [Z,Y]

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

Related questions

Q: r the divisor 10011, and suppose that the data-word has the value 1010100000. What is the value of…

A: Consider the divisor 10011, and suppose that the data-word has the value 1010100000. What is the…

Q: MIPS - Encoding Determine the machine language of the following MIPS assembly-language code…

A: Answer - Determine the machine language of the following MIPS assembly language code fragment. You…

Q: Use Huffman code to demonstrate that a variable length encoding scheme can be used to compress the…

A: We need to use Huffman code to demonstrate that a variable length encoding scheme can be used to…

Q: Perform the given operation (AND, XOR...) on the two collections of bits. For example: 1001 AND 0011…

A: Given information:- Perform the given operation (AND, XOR...) on the two collections of bits. 1.…

Q: In this problem we will work through a round of DES. For notational simplicity, assume it is the…

A: Actually, given question regarding DES.

Q: Prove that the number of comparisons necessary for a binary search in a table of size N is exactly…

A: In computer science, binary search is a technique to search for elements from a specific collection…

Q: Given the above table: Assuming unsigned 4-bit representation of numbers, under what conditions…

A: Given that, The table contains two values A and B and their sum in both binary and decimal form. The…

Q: Can you check if my asnwer is correct

A: FEEL FREE TO ASK FOR CLARIFICATIONS

Q: Assuming odd parity, find the parity bit for each of the following data units. why is it the parity…

A: Explanation:In odd parity, the parity bit is set to make the total number of 1's in the data unit…

Q: Convert the following decimal values into packed Binary Coded Decimal (BCD) encodings. Your answer…

A: BCD stands for Binary Coded Decimal. It is a binary encoding of decimal numbers where each decimal…

Q: 20. Suppose we have just found yet another representation for floating point numbers. Using this…

A: The solution for the above given question is given below:

Q: In this problem the generator G (=1001). Given G answer the following questions: a) Why can it…

A: a)

Q: 3. Let LSA(x,b) represent a left arithmetic shift of x by b bits, and RSL(x,b) represent a right…

A: Hi please find the solution below and I hope it would be helpful for you.

Q: Given a single-precision IEEE 754 representation of a floating point number as: 0x40700000, do the…

A: IEEE 754 is a standard for specifying the arithmetic behavior of floating-point integers and…

Q: In a Von Neumann architecture, groups of bits have no intrinsic meanings by themselves. What a bit…

A: To answer your questions, let's break down each part:i. Two's Complement Integer:For a 32-bit two's…

Q: For our homework this week we have two problem. The first one reinforces the concepts in chapter 2.…

A: A. x & (-x) B. !x C. (x & 0xFF) != 0 D. ((x >> ((sizeof(int)1Malformed citation…

Q: For notational simplicity, assume it is the first round. Please enter all answers as strings of 0's…

A: Solution:- L=0000 0000 0000 0000 0000 1000 0000 0000 R=0000 0001 0000 0000 1101 0000 0000 0000…

Question

Prove that the Internet checksum computation shown in the text
is independent of byte order (host order or network order) except
that the bytes in the final checksum should be swapped later to
be in the correct order. Specifically, show that the sum of 16-bit
words can be computed in either byte order. For example, if the
one's complement sum (denoted by +') of 16-bit words is
represented as follows,
[A,B] +' [C,D] +' … .. +' [Y,Z]
the following swapped sum is the same as the original sum above:
[B,A] +' [D,C] +' ... +' [Z,Y]

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

If we use the 128-bit binary field extension F 128 to decode the 127-bit binary BCH code at a distance of 6, we get a total of 127 bits. How big is the code, and is there a guaranteed minimum separation?
Answer the given question with a proper explanation and step-by-step solution. Consider a Hamming (7.4) code in which the parity bits are calculated according to the following equations: r0 = a0 + a1 + a2 r1 = a1 + a2 + a3 r2 = a0 + a1 + a3 The following dataword is to be coded with this scheme: format: a3 a2 a1 a0 0010 What is the parity code for the above dataword? Show it in decimal format for (r2,r1,r0); e.g. if the resulting bits are r2=1, r1=0, r0=0 (100), type the decimal equivalent of 100, which is 4.
Convert the following unpacked Binary Coded Decimal (BCD) encodings to their decimal values. Note: Spaces are placed between each 4-bit sequence to make the binary sequence more readable and decrease the likelihood of a mistake. a) 0000 0111 0000 0100 0000 1000 b) 0000 1001 0000 0001 0000 0110
Suppose that we have the following 128-bit AES key, given in hexadecimalrepresentation:54 77 6F 20 4F 6E 65 20 4E 69 6E 65 20 54 77 6F Construct the round key for the first round.
B={1,2,3,4,5,6,7,8,9,10} Using the n-bit binaries to which subset in the power set of the ordered set B does the following bit string represent: 1100000011
What is the worst-case running time of unions done by size and path compression?a) O(N)b) O(logN)c) O(N logN)d) O(M logN)
In a Von Neumann architecture, groups of bits have no intrinsic meanings by themselves. What a bit pattern represents depends entirely on how it is used. The following table shows bit patterns expressed in hexadecimal notation i. 0x000940C2 ii. 0x8C90FFFC Qa)What decimal number does each bit pattern represent if, i.It is a two’s-complement integer? ii.It is an unsigned integer? b) If each bit pattern represents an MIPS instruction, what instruction will be executed? c) What decimal number does each bit pattern represent if it is a floating-point number in IEEE 754 standard?
What are the differences between the unsigned binary representations, disregarding the underscores?
What is the worst-case running time of unions done by size and path compression?a) O(N)b) O(logN)c) O(N logN)d) O(M logN)
Correct and detailed answer. Thank you
Question What is the result of expanding the following LZW-encoded sequence of 12 hexadecimal integers? 41 43 43 42 81 41 42 82 85 41 41 80 Assume the original encoding table consists of all 7-bit ASCII characters and uses 8-bit codewords. Answer Your answer should be a sequence of uppercase letters, separated by whitespace.
Provide the correct answers to each question