In shift keying method, the data elements are represented by 2 different phases of and Answers: a.Frequency: 0 and 180 b. Phase : 0 and 180 c. Wavelength: 0 and 90 d. Amplitude: 0 and 90 Question 2 1 out of 1 points The speed of serial transmission mode by ' n ' times if fie number of bits transtered per clock fick is n in. Answers: a.Decreased b.increased c.Stable dExponential In serial transmission mode the cost f our or t pains Answers: a decreases : increasos and speed b. decreases : decreasos c. increases: Decreases d. Increases: Increasos Question 4 The coding scheme in which the change or lack of change in the ievel of the voitage determinies the value of the bit Answers a NRZ - Invort b.NRZ. Zoro c.NRZ - Level d.NR2-Signal