Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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- Suppose you want to send the following 2 16-bits numbers: 11010010 01111010 and 10011010 01011001. What would be the checksum? The spaces are used to make the sequence of bits more readable. Options: A) 01101100 00101011 B) 1001001100101011 C) 10010011 11010100 D) 01101100 11010100arrow_forwardGiven an integer N and an integer D, rotate the binary representation of the integer N by D digits to the left as well as right and print the results in decimal values after each of the rotation. Note: Integer N is stored using 16 bits. i.e. 12 will be stored as 0000.....001100. Example 1: Input: N = 28, D = 2 Output: 112 7 Explanation: 28 in Binary is: 000...011100 Rotating left by 2 positions, it becomes 00...1110000 = 112 (in decimal). Rotating right by 2 positarrow_forwardSuppose the characters 0,1,...,8,9, A,B,C,D,E,F are used to represent a hex adecimal (base-16) number. Here A = 10 B =11,..., F = 15 What is the largest base-10 integer that can be represented with a two-digit hexadecimal number, such as 14 or 3A? (A) 32 (B) 225 (C) 255 (D) 256 (E) 272arrow_forward
- Write a program that swaps 5th~11th bits in data_a with 25th~31th bits in data_bYour program must work for any data given, not just the example belowIn this question, we assmue that the positions of bits count from right to left.That is, the first bit is the least significant bit.arrow_forwardWrite a program in C that can convert a bit stream of a message into a frame by using Hamming coding. The bit stream is the input parameter of the program. For example, given an input parameter as 1001000, the correct output of the frame is 00110010000. Input bit stream will have 1 to 64 bits. Some self-testing examples are:Input 1001000; output 00110010000Input 1101001100110101; output 011110110011001110101Input 1010101; output 11110100101Input 11111111; output 111011101111 Write a program in C that can convert a bit stream of a message into a frame by using CRC. The bit stream is the first input parameter of the program, which will have 8 to 128 bits. The generator function is the second input parameter of the program, which will have 4 to 16 bits. For example, if the generator function is x^4 + x + 1, the second input will be 10011. The output should be the transmitted bit stream with its CRC checksum bits; see example in Figure 3-9 in the textbook. Some self-testing examples…arrow_forwardOur everyday number system in the UK and many other parts of the world is a base-10 system using Arabic numerals, namely the digits 0, 1, 9. Integers larger than 9 are represented by sequences of these elementary numerals. The numerical value encoded by such a sequence is determined by multiplying each numeral by 10k, where k is the position of the numeral counted from the back and starting at zero, and then summing together the contributions from all numerals. For example, 5207 = 5 × 10³ +2×10² +0×10¹ + 7×10⁰ The built-in int function in Python can take a string (type str) representing such a number and convert it to a Python integer (type int). Write a similar function base14_convert that takes a string and converts it to a Python integer according to the following number system: • the base is 14, i.e., the individual digits have to be multiplied by powers of 14 to obtain the numerical value; digits are represented by lower-case letters 'a', 'b', 'c', 'd', ..., i.e., 'a' is…arrow_forward
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