a.) Why have the standards makers chosen to specify that requests for Delivery Status Notifications are to be sent via SMTP, and not via a header in the mail heading? b.) What protocols can be applied when you want to transfer files between different platforms, such as UNIX systems and Windows servers? c.) In a Stop-and-Wait ARQ system, the bandwidth of the line is 2 Mbps, and 2 bit takes 30 ms to make a round trip. What is the bandwidth-delay product? If the system data frames are 10000 bits in length, what is the utilization percentage of the link?

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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a.) Why have the standards makers chosen to specify that requests for Delivery Status Notifications are to be sent via SMTP, and not via a header in the mail heading?

b.) What protocols can be applied when you want to transfer files between different platforms, such as UNIX systems and Windows servers?

c.) In a Stop-and-Wait ARQ system, the bandwidth of the line is 2 Mbps, and 2 bit takes 30 ms to make a round trip. What is the bandwidth-delay product? If the system data frames are 10000 bits in length, what is the utilization percentage of the link?

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