a) What is Cyclic Redundancy Check (CRC) and how it works? b) Generate hamming code for the message 1110110.
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- In Cyclic redundancy check (CRC), the dataword is 5 bits and the codeword is 8 bits.[15 marks]i.How many 0s need to be added to the dataword to make the dividend?ii.What is the size of the remainder?iii.What is the size of the divisor?QUESTION1 "Rabenstein code was used to send a message with 4 information bits, you receive 100110001 if you can expect at most one bit of corruption, what were the original information bits?" QUESTION 2 Givon the codeword set 111111 000111 110001 101100 011010 Add another codeword to this set that has distance at least 3 to all other codewords.Assume that the following block of 16 bits is to be sent using a checksum of 8 bits. What is the pattern (codeword) sent? The block 0f 16 bits is 10101001 00111001.
- ] In the following problems, check suitable rule (Sum, Subtraction or Product) and compute the total number of possible ways in the entire procedure: The password for a computer account can be 6, 7 or 8 characters in length; the characters can be letters or digits. What is the number of ways a password can be formed? How many bit strings of length sixteen start with a 11 or end with 00?21. RSA problem: given plaintext P, e, prime numbers p, q, compute ciphertext C. Decrypt C and verify you get plaintext P back.3. (b) A sender needs to send the four data items 0x1236, OXABCC, OX03BC, and OXEEEE. To avoid confusion, Ox is written in the prefix to denote that the data is in Hexadecimal. For example, Ox3456 is 3456 in hexadecimal. Now answer the following: i. Find the checksum at the sender site. ii. Find the checksum at the receiver site if there is no error.
- Question T The decrypted message of fdhvdu fiskhu is: Blank 1 *Hint the text was encrypted using f(p) - (p+3) Blank 1 Add your answer Question 2 Consider the message "Discrete Structures" Translate the encrypted numbers to letters for the function f(p) = (3p + 7) mod 26. A qfjngtmt jmlmkdmpgtj B ajfnfisdf ryeadskdu qfingtmt jmgpnmpgtj qjfnfisdf ryduydjskLet M be the plaintext message M = MALAYSIA and the private key, K = ISSOGOOD a) Convert this plaintext and key message to Hexadecimal representation using the ASCII table. b) Convert the Hexadecimal representation to binary number.How many bit strings of length 10 contain a) exactly four 1s? b) at most four 1s? c) at least four 1s?
- Determine whether the given message is a code word in Hamming [7,4] code. If it is not, correct the single error and decode the corrected messagea. Give an example of a value that can't be represented in 32-bit IEEE because it doesn't have a finite representation in binary. Explain (i.e. show that it doesn't have a finite representation). b. Give an example of a value that can't be represented in 32-bit IEEE because it's out of the range of values that can be represented in this format. Explain (i.e. show that this value is out of the range of expressible values of 32-bit IEEE 754).Used C PLUS PLUS LANGUAGE. all instructions are given in question. Kindly follow it. When a message is transmitted in secret code over a transmission channel, it is usually sent as a sequence of bits, that is, 0s and 1s. Due to noise in the transmission channel, the transmitted message may become corrupted. That is, the message received at the destination is not the same as the message transmitted; some of the bits may have been changed. There are several techniques to check the validity of the transmitted message at the destination. One technique is to transmit the same message twice. At the destination, both copies of the message are compared bit by bit. If the corresponding bits are the same, the message received is error-free. Response Required: Write a program to check whether the message received at the destination is error-free. For simplicity, assume that the secret code representing the message is a sequence of digits (0 to 9) and the maximum length of the message is 250…