P$13.$ Consider sending over HTTP$/2$ a Web page that consists of one video clip, and five images. Suppose that the video clip is transported as $2000$ frames, and each image has three frames.

If all the video frames are sent first without interleaving, how many $$frame times$$ are needed until all five images are sent?

If frames are interleaved, how many frame times are needed until all five images are sent.

P$14.$ Consider the Web page in problem $13.$ Now HTTP$/2$ prioritization is employed. Suppose all the images are given priority over the video clip, and that the first image is given priority over the second image, the second image over the third image, and so on$.$ How many frame times will be needed until the second image is sent?

P$15.$ What is the difference between MAIL FROM: in SMTP and From: in the mail message itself?

P$16.$ How does SMTP mark the end of a message body? How about HTTP$?$ Can HTTP use the same method as SMTP to mark the end of a message body? Explain.