Find correct answers referes to data and networking communication: 1. In ethernet frame, sending adapter encapsulates IP datagram (or other network layer protocol packet) and it uses preamble whick consists of : a. 4 bytes with pattern 10101010 followed by one byte with pattern 10101011. b. 7 bytes with pattern 1010111 followed by one byte with pattern 10101011. c. 2 bytes with pattern 10101010 followed by one byte with pattern 10101011. d. 7 bytes with pattern 10101011 followed by one byte wit pattern 10101010. e. 6 bytes with pattern 10101010 followed by one byte with pattern 10101011. f. 7 bytes with pattern 10101011 followed one byte with pattern 10101010. g. 7 bytes with pattern 10101010 followed by one byte with pattern 10101011. 2. The method of communication in which transaction takes place in both directions but only in one direction at a time is called? a. three answers are correct b. two answers are correct c. Multi-duplex d. Full-duplex e. four wire circuit f. simplex g. half-duplex h. duo-duplex i. bi-duplex j. all of the mentioned k. bluetooth 3. In ... the sender sends one frame stop until it received confirmation from receiver and then send to the next level: a. silplest protocol b. high level data link control protocol (HDLC) c. sliding window protocol d. stop and wait protocol 4. In ... we are looking only to see if any error has occured. The answe is a simple yes or no: a. error correction b. error detection c. error searching d. error transmission e. error mitigation 5. Under mark parity, each parity bit is? a. always set to 1 b. always set to 0 c. not used d. alternated between 0 and 1