Q9.21 PointThis is the church encoding for if false then false else true: (Ax.Ay.y) (Ax.Ay.y) (Ax.Ay.x). What isthe beta-normal form of this expression?(Ax.Ay.y) (Ax.Ay.y) (Ax.Ay.x)λκ.λγ.κAx.Ay.yAy-yIt produces an infinite loop.Save AnswerQ9.31 PointWhich of the following lambda expressions correctly representsif false then (if false then false else true) else false?○ (Ax.Ay.y)(x.Ay.y)(λx.λy.x)(λx.λy.x)(\x.\y.x)(\x.\y.y)((\x.\y.y)(\x.\y.y)(^x.Лy.x))© (Ax.Ay.y)((Ax.Ay.y)(Ax.Ay.y)(Ax.Ay.x))(Ax.λy.y)○ (Ax.Ay.y)(x.Ay.x)(λx.λy.y)(^x.λy.x) Q93 PointsGiven the following Church encodings:True: Ax.Ay.xFalse: Ax.Ay.yIf a Then Else c: abcQ9.11 PointWhich of the following represents if true then false else true ?(Ax.Ay.y) (Ax.Ay.x) (Ax.Ay.y)(Ax.Ay.x) (Ax.Ay.y) (Ax.Ay.x)(Ax.Ay.x) (Ax.Ay.y) (Ax.Ay.y)(Ax.Ay.y) (Ax.Ay.y) (Ax.Ay.x)Save Answer

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Answered: Q9.2 1 Point This is the church…

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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Question Compute a Huffman trie for the following string of length 61. UUJCUJUVAJHHVUJJUUHEUVJJAVHUJEJEJVUVEUAVJVAAVHJEJJJEHVJJEJHHU Here are the frequencies of the characters in the string: char freq А C 1 7 H 8. J 18 U 12 V 10 Using the encodings from the Huffman trie you computed, how many bits are needed to encode the above string? Do not count the bits to represent the encoding table (or any bits used for padding and byte alignment). Answer Your answer should be a positive integer.
(2) {w = {0, 1]* : w corresponds to the binary encoding, without leading O's, of natural numbers that are powers of 4} Testing strings: €, 0, 1, 01, 10, 11, 100, 101, 1000, 1010, 10000 The accepted strings are: L [ E 01 11 100 101 1000 1010 10000
15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 # # v1: v2: This program gives you some practice working with bitwise, shift, and rotate operators main: .global .data .word .word .text .set .ent nop 12 main 0xFEEDABEE lw $s1, v1 lw $s2, v2 ## $t0 = v2 with highest ## $t1 = v2 with lower 1 byte set to 1, other bits staying the same ## $t2 = v1 multiplied by 4 *without* using a multiply instruction ## $t3 = v2 devided by 7 *without* using a multiply instruction .end noreorder main ## $t4 = remainder of v1 divided by 5 ## $t5 = v2 with the lowest 6 bits flipped (inverted) and the upper 26 bits staying the same ## $t6 = 0x1401FED0 without using any pseudo-instructions (i.e., shouldn't use "li $t6, 0xABCD1357") ## $s1 = v1 ## $s2 = v2 12 bits cleared (set to 0), other bits staying the same # This code simply loops infinitely spin: j spin main
8. We have the following code word: 01111010101. This string has 7 data bits, plus 4check bits. We are using an error-correcting code that can correct single bit errors.In fact, there is a single bit error in this code. Assuming the use of the Hammingalgorithm, locate the bit that has been altered.
57. In a binary Hamming Code the number of check digits is r then number of message digits is equal to : a. 2^r – 1 b. 2^r – r – 1 c. 2^r – r + 1 d. 2^r + r – 1
Create an RLE class that uses fixed-length encoding to reduce ASCII bytestreams with a limited number of characters, including the code as part of the compressed bitstream. Add code to compress() to generate a string alpha containing all of the unique letters in the message and use it to generate an Alphabet for use in compress(), prepend alpha (8-bit encoding plus its length) to the compressed bitstream, and then add code to expand() to read the alphabet before expansion.
Create an RLE class that employs fixed-length encoding to compress ASCII bytestreams with a limited number of characters, including the code as part of the encoded bitstream. Add code to compress() to generate a string alpha containing all of the different characters in the message and use it to generate an Alphabet for use in compress(), prepend alpha (8-bit encoding plus its length) to the compressed bitstream, and then add code to expand() to read the alphabet before expansion.
Q1: A bit stream X is transmitted using the standard CRC method, where, X is the 8 bit ASCII of last two digit of your arid number and divisor will be the 8 bit ASCII of last digit of your registration year (For example a student having 19-arid-121 will use ASCII of 21 as X and ASCII of 8 as divisor). [Note: remove the left most 0’s from X as well as divisor]. Write down the complete procedure to create codeword at sender side and then check at receiver side that either the data received is correct or not?
in the example, what is the encoding of the word DUM?
Consider a sequence of symbols ABCDE. The sequence can only start with A or B or C or D. Suppose that A is followed by B or C B is followed by C or D C is always followed by A D is followed by A or B or C or E E is followed by A or B. Given the conditions above, determine the binary code for following sequence of symbols: CACABDCABDEB Select one: O a. 101011001111 b. 101111001111 O c. 101011001011 O d. None of the options
Question 5. Consider a source code with the following encoding table: Message X1 Codeword 0 10 11 101 x2 X3 X4 Which of the following statements is true? Select one: O It is a singular code. O It is a nonsingular, but not uniquely decodable code. O It is a nonsingular, uniquely decodable but not instantaneous code. O It is a nonsingular, uniquely decodable, instantaneous code. None of the above statements is true.
Implement the Hamming Code error detection and correction algorithm for a group message to be transmitted over a network. Hamming code algorithm allows the receiver to detect errors that may have been introduced due to many factors such as noise, interference, and many others. -> Assume the following: 1. The sender message length is 2 bytes. The data transmitted to the user is the 2-byte data in addition to the parity bits. 2. The receiver must be able to detect and correct 1-bit error. Report :In the report you must include an overview of the Hamming code algorithm and you need to show: 1. The detailed calculation of the minimum number of parity bits needed for a message of 2-byte length. 2. Details on how sender generates the parity bits. 3. Details on how thew receiver detects and corrects a 1-bit error. THANKS., PLEASE GIVE DETAILED DESCRIPTION.

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