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- 1-A system has received 2 bytes of transmission, with the first bit being an extra odd parity bit: 100001111, 001010101. Is there detectable error? 2- A digital recording of audio file is 120 seconds, with bitrate 44 Kbps. Write down the exact number of KB needed for this recording. 3-Write down the smallest number in decimal, that can be represented by 11bit signed binary1. One way of detecting errors is to transmit data as a block of n rows of k bits per row and add parity bits to each row and each column (for this problem k is >=5). The bit in the lower-right corner is a parity bit that checks its row and its column. This scheme will detect burst errors of length 5? (A) TRUE (B) FALSE 2. According to Shannon, if the amount of Signal is increased on a transmission medium, everything else constant, the expected theoretical bitrate would (A) increase (B) decrease (C) remain the same (D) cannot determine 3. In nonpersistent CSMA, if a transmitter ready to transmit senses the channel is busy, the transmitter waits a random amount of time, and senses the line again. If it’s still busy it repeats the process, otherwise it transmits the data. (A) True (B) False2) Compute data sent for a bit stream of 101011 with CRC using a generator 1010 Randomly assume any bit to have been corrupted, Illustrate how the receiver can detect if the data was corrupted.
- We want to transmit 1000 characters with each character encoded as 8 bits. a. Find the number of transmitted bits for synchronous transmission. b. Find the number of transmitted bits for asynchronous transmission. c. Find the redundancy percent in each case."Parity bits" are used for which of the following purposes? A. Encryption of data B. To transmit faster C. To detect errors D. To identify the userPlease provide assistance with the following question: When it comes to parity bits, what is the maximum number of mistakes that may be detected in a message?
- Please help with the following question: What is the parity bit for each of the following messages using even parity? a. 10011101100110110 b. 01000101110101011 c. 01110111100100010 d. 00101101011100100What are the CRC bits (R) associated with the payload containing first four bit 1101 and last four bit is the last digit of your reg number (i.e. 5, payload = 1101 0101). Suppose that the 4-bit generator (G) is 0101, and r = 3Beginning with one start bit followed by 21 data bits, 2 parity bits and 1 stop bit: a) What are the total number of bits in the frame? b) What would the overhead and throughput be (answer in percent)?
- In CRC, if the dataword is 5 bits and the codeword is 8 bits, how many 0s need to be added to the dataword to make the dividend? What is the size of the remainder? What is the size of the divisor? What is the maximum effect of a 2-ms burst of noise on data transmitted at the following rates?With the use of a Checksum Method, show the transmission of “m” and “n” from the sender to destination side. The following block is sent: 00001111 11110000 11001100 10101010. With the use of a two-dimensional parity check and assuming that no single/multiple-bit or burst error have occurred, what will be received in the receiver side? NOTE: Put a space after each frame.Computer Network : Suppose 3 blocks of 16 bits need to be sent, using Checksum method proves the following cases: When there is no error When there is a burst error and detected. When there is a burst error and remains undetected Block 1: 1011101110101011 Block 2: 0101000011111010 Block 3: 0111010110101010