Q1: A signal has a bandwidth of 20Hz. The highest frequency is 60Hz. What is the lowest frequency? Q2: Calculate the total number of bits for an audio signal with a bandwidth of 4KHz that has lasted for 5 minutes if the number of bits in every sample is 16-bits ADC? And how would it take to download this audio file over 70Kbps ? Q3: Define the bit depth? How many colors in 16-bit? Q4: In the system analysis and design, what cause the projects to fail? Q5: Local Area Networks (Wireless or Wired) can be differentiated by the networking model they use; Peer to Peer (P2P) or Client/Server. Compare between the two models? Q6: A. Encode the blocks (1100110 : 1111101) using the following encoding schemes: B. The 11100000 block has been received, a. Determine whether the block has been received correctly or not knowing that it has been encoded using single parity checking? Explain your answer? b. If the error is detected, how would the receiver correct the error? Q7: Detect and correct the errors in the following stream of bits knowing that the received stream has been encoded using rectangular coding. Received data stream: 100010101100011001101100