(c) Consider a video streaming application with the following features: Use Real Time Streaming Protocol (RTSP) Use TCP for video data transport Use a constant bit-rate codec of 1Mbps for video data The application is to be used over the best-effort based Internet. (i) RTSP is located at which TCP/IP protocol layer? [1 Mark] (ii) Discuss the functions of RTSP. [3 Marks] (iii Explain the best-effort service model. ) [3 Marks] (iv Discuss the limitation of the best-effort service model in serving the video traffic. [2 Marks] (c) Consider a video streaming application with the following features: Use Real Time Streaming Protocol (RTSP) Use TCP for video data transport Use a constant bit-rate codec of 1Mbps for video data The application is to be used over the best-effort based Internet. (i) RTSP is located at which TCP/IP protocol layer? [1 Mark] (ii) Discuss the functions of RTSP. [3 Marks] Explain the best-effort service model. [3 Marks] (iv ) Discuss the limitation of the best-effort service model in serving the video traffic. [2 Marks]