Hello. I would like to solve these questions number ( 1,3,4,6) today for computer networks, please with details

Question 1 What type of transmission medium is commonly used for baseband transmission and for passband transmission?

Question 2 Encode the bit-pattern 1010000101 using the following digital encoding schemes. Be sure to write down any assumptions you need to make:

a. NRZI b. Manchester c. AMI

Question 3 A periodic composite signal with a bandwidth of 2000 Hz is composed of two sine waves. The first one has a frequency of 100 Hz with a maximum amplitude of 20 V; the second one has a maximum amplitude of 5 V. Draw the frequency domain graph.

Question 4 Which signal has a wider bandwidth, a sine wave with a frequency of 100 Hz or a sine wave with a frequency of 200 Hz?

Question 5 A file contains 2 million bytes. How long does it take to download this file using a 56-Kbps channel? 1-Mbps channel?

Question 6 What is the bit rate for the signal in the following figure?

Question 7 What is the difference between Synchronous TDM and asynchronous TDM?