Essay (Total Point: 4.00) #1 We want to digitize an analog signal with frequency 4000hz to 8000hz. What is the bit rate, assuming 8 bits per sample? (4m) Answer Essay (Total Point: 2.00) #2 Define carrier signal in analog transmission. Answer Essay (Total Point: 3.00) #3 What is the required bandwidth for the following cases if we need to send 4000bps? Let d=1. i. ASK ii. QPSK iii. 16-QAM ( Answer Essay (Total Point: 1.00) #4 Given the frequencies 120 Hz, calculate the corresponding periods. (Show your work) Answer Essay (Total Point: 2.00) #5 State the significance of twisting in the RJ45 cable. Give an Answer example.