Assignment #1-Network Performance A) Mars and Earth are 225 milion km apart. The Curiosity Rover receives commands from NASA on Earth and sends data collected onMars back to Earth. The rover's high gain antenna supports a 1.6Kbps link to NASA via the Deep Space Network (DSN). Answer the following: 1. NASA sends a 64B command to the rover. How long will it take before NASA receives a response (assume zero processing time on the rover)? 2. The command NASA sent was to start the download of an image file. The image is 3MB. How long will it take to download the image (not including the time to send the command)? 3. Periodically the rover pings the DSN with an 8B "I'm alive" message The DSN responds with a 8B "OK" message. How long will this exchange take? B) Suppose we have a undersea colony with a 10 Mbps fiber-optic link. The distance from Mission Control to the colony is 385 km. Determine the following: 1. What is the minimum RTT for the link? 2. A remote monitoring camera in the colony takes pictures and stores them for later download. Suppose Mission Control sends a 4B command to download the latest image which is 26MB. How much time wi it take from the moment the command is transmitted to when the download completes (i.e. what is the total latency)? Media Speed of light Speed of light in media: Vacuum 3.0 x 10m/s Copper 2.3 x 103m/s Fiber 2.0 x 108m/s t The average distance between Earth and Mars is 225 million km. At their farthest, the two are 401 million km apart and at the closest they are 57.6 million km apart. For problem A we are using the average distance