Notes: 1) Answer All Questions, 2) Fill all blanks in what you find suitable. oblidad 1- One of the benefits of using modulation is to for wireless transmission. (A- Increase the antenna dimensions, B- decrease the data rate, C- Reduce the antenna dimensions, D- Increase the transmission range). 2- The range of frequencies that can be transmitted over a channel with a reasonable fidelity is called (A-Guard Band, B- Bandwidth, C-noise, D- Data) 3- For a signal of 15 cm wavelength (), the frequency (D) is GHz in free space. (note: clf, and = 3 x 10 meters/sec). 4- If we know that the maximum throughput that can be supported by a channel is 900 Mb/s. Then the time we need to send a file with size 4.5 GB is - sec. (Note: Time (sec) = Data Rate (or Throughput) File Size 5- Sketch the output baseband signals for the following data stream (01011011) using the line-coding techniques depicted in the figure below: Bipolar NRZ A+ Unipolar NRZ A+ Bipolar RZ A: Unipolar RZ AH Bipolar RZ AMI Manchester