SHARE
SPREAD
HELP

The Tradition of Sharing

Help your friends and juniors by posting answers to the questions that you know. Also post questions that are not available.

To start with, Sr2Jr’s first step is to reduce the expenses related to education. To achieve this goal Sr2Jr organized the textbook’s question and answers. Sr2Jr is community based and need your support to fill the question and answers. The question and answers posted will be available free of cost to all.

Sharing the knowledge gained, is a generous way to change our world for the better. -Sr2Jr

 

#
Authors:
James F. Kurose, Keith W. Ross
Chapter:
Application Layer
Exercise:
Problems
Question:17 | ISBN:9780132856201 | Edition: 6

Question

Consider accessing your e-mail with POP3.

a. Suppose you have configured your POP mail client to operate in the download-and-delete mode. Complete the following transaction:

C: list

S: 1 498

S: 2 912

S: .

C: retr 1

S: blah blah ...

S: ..........blah

S: .

?

?

b. Suppose you have configured your POP mail client to operate in the download-and-keep mode. Complete the following transaction:

C: list

S: 1 498

S: 2 912

S: .

C: retr 1

S: blah blah ...

S: ..........blah

S: .

?

?

c. Suppose you have configured your POP mail client to operate in the download-and-keep mode. Using your transcript in part (b), suppose you retrieve messages 1 and 2, exit POP, and then five minutes later you again access POP to retrieve new e-mail. Suppose that in the five-minute interval no new messages have been sent to you. Provide a transcript of this second POP session.

TextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbook

Answer

Consider accessing the e-mail with POP3.

a) C: dele 1

C: retr 2

S: (blah blah …

S: ………..blah)

S: .

C: dele 2

C: quit

S: +OK POP3 server signing off

 

b) C: retr 2

S: blah blah …

S: ………..blah

S: .

C: quit

S: +OK POP3 server signing off

 

C: list

S: 1 498

S: 2 912

S: .

C: retr 1

S: blah …..

S: ….blah

S: .

C: retr 2

S: blah blah …

S: ………..blah

S: .

C: quit

S: +OK POP3 server log off

 

0 0

Discussions

Post the discussion to improve the above solution.