How long in seconds will it take to transmit a file over a network from point A to point B using the values provided below. This problem assumes no processing or propagation delay. Show your work. Point A ------------6 Mbps link------------Point B Again assume 1 byte = 8 bits; 1 KB = 1024 bytes; 1 MB = 1024 KB; 1 GB = 1024 MB, Mbps represents a million bits per second Let F represent a File in MBs Let R represent transmission rate in Mbps (Megabits per second); R = 4 Mbps Let P represent a packets payload size; P=1460 bytes Let PH represent a packets header length; PH = 40 bytes

A) For a file with a size of 10 MB, calculate the transmission time for the file without the packet headers. Provided your answer using a minimum of 6 significant digits.

b) For a file with a size of 20 MB, calculate the transmission time for the file. This time include the packet headers.