cnp3-ebook/exercises/email — English @ Weblate

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7 ../../exercises/email.rst:16

	English Use your preferred email tool to send an email message to yourself containing a single line of text. Most email tools have the ability to show the `source` of the message, use this function to look at the message that you sent and the message that you received. Can you find an explanation for all the lines that have been added to your single line email ? 356/10000 · 356
8 ../../exercises/email.rst:18

	English The TCP protocol supports 65536 different ports numbers. Many of these port numbers have been reserved for some applications. The official repository of the reserved port numbers is maintained by the Internet Assigned Numbers Authority (IANA_) on http://www.iana.org/assignments/port-numbers [#fservices]_. Using this information, what is the default port number for the POP3 protocol ? Does it run on top of UDP or TCP ? 421/10000 · 421
9 ../../exercises/email.rst:20

	English The Post Office Protocol (POP) is a rather simple protocol described in :rfc:`1939`. POP operates in three phases. The first phase is the authorization phase where the client provides a username and a password. The second phase is the transaction phase where the client can retrieve emails. The last phase is the update phase where the client finalizes the transaction. What are the main POP commands and their parameters ? When a POP server returns an answer, how can you easily determine whether the answer is positive or negative ? 534/10000 · 534
10 ../../exercises/email.rst:22

	English On smartphones, users often want to avoid downloading large emails over a slow wireless connection. How could a POP client only download emails that are smaller than 5 KBytes ? 176/10000 · 176
11 ../../exercises/email.rst:26

	English Footnotes 9/10000 · 9
12 ../../exercises/email.rst:27

	English On Unix hosts, a subset of the port assignments is often placed in `/etc/services`. 83/10000 · 83
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