2023/8/2009:52Class test quiz for CNENGR116:Attempt reviewStarted on Monday,28 November 2022,4:22 PMState FinishedCompleted on Monday,28 November 2022,5:17 PMTime taken 55 mins 17 secsGrade190.00 out of300.00(63.33%)Feedback Well done,you have passed the progress test.Question 1Mark 10.00 out of 10.00Which of the descriptions below best describes the purpose of a 4x1 multiplexer?Select one:1.A4x1 multiplexer directs the data from any one of 4 incoming bus onto any one of 4 outgoing going data buses.O 2.A 4x1 multiplexer directs the data from a single selected incoming bus onto a randomly selected out going data bus.3.A 4x1 multiplexer directs the data from one of 4 selected incoming buses onto a single out going data bus.v Correct answer.O4.A 4x1 multiplexer stores data until it is needed by the CPU.Your answer is correct.The correct answer is:A 4x1 multiplexer directs the data from one of 4 selected incoming buses onto a single out going data bus.Question 2CorrectMark 10.00 out of 10.00What does the term 'Critical delay'mean when referring to a configuration of logicgates？Select one:O 1.The path with the shortest track length on a PCB board.O2.The shortest time taken for any of the inputs to effect the output of the circuit.O3.The path with the longest track length on a PCB board.4.The longest time taken for any of the inputs to effect the output of the circuit (ie its final state)Correct answerYour answer is correct.The correct answer is:The longest time taken for any of the inputs to effect the output of the circuit (ie its final state)nttps://modules.bjtu.edu.cn/mod/quiz/review.php?attempt=27088&cmid=463991/182023/8/2009:52Class test quiz for CNENGR116:Attempt reviewMark 10,00 out of 10,00What decimal value is represented by the positive binary number 10111?(The number is positive,is not in two's complement and does not have a sign bit)Select one:○1.21○2.25Q3.23√Correct answer.○4.15Your answer is correct.The correct answer is:23Question 4Mark 10.00 out of 10.00A'.B.C +A.B.C+A.B'.C +A.B.C'Select one:1.A.C+A.B+B.C Correct answer2.A'.B.C +A.B.C +A.B'.C +A.B.C'○3.AA.C+B'.C4.A.B+B.C.B'+C'.CYour answer is correct.The correct answer is:A.C +A.BB.Cnttps://modules.bjtu.edu.cn/mod/quiz/review.php?attempt=27088&cmid=463992/18