Email Email Server server E-mail client User E-mail client User IMAP MS MS Local UA POP3 MS client POP3 UA Local client MS UA SMTP UA MTA MTA server server ISP TCP TCP LAN LAN ISP network prolocol stack prolocol stack prolocol IP IP IP protocol stack DL/PHY DL/PHY stack Global Internet backbone Site/campus LAN ISP network User agent Message transfer system User agent POP SMTP ISP MTA UA DL/PHY = data link/physical layer = post office protocol simple mail transfer protocol Internet service provider = message transfer agent = user agent MS = message store (contains of mail to be sent a queue and an IN mailbox for each of its local users) %3D %3D Figure 2 Protocol stack to support e-mail over the Internet

Email Email Server server E-mail client User E-mail client User IMAP MS MS Local UA POP3 MS client POP3 UA Local client MS UA SMTP UA MTA MTA server server ISP TCP TCP LAN LAN ISP network prolocol stack prolocol stack prolocol IP IP IP protocol stack DL/PHY DL/PHY stack Global Internet backbone Site/campus LAN ISP network User agent Message transfer system User agent POP SMTP ISP MTA UA DL/PHY = data link/physical layer = post office protocol simple mail transfer protocol Internet service provider = message transfer agent = user agent MS = message store (contains of mail to be sent a queue and an IN mailbox for each of its local users) %3D %3D Figure 2 Protocol stack to support e-mail over the Internet

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Algorithm to Auxiliary methods for the lockstep protocol.in: message m; set of recipients R
1. When DC1, acting as a DNS client, performs a DNS lookup, which DNS server is it using?
What function does the SMTP protocol serve?
How can a server tell the difference, from a DNS standpoint, between a request that is being issued for the web and one that is being sent for email?
Using Java Programming Language (Java Socket /TCP Programming) Please make a simple messaging program that will allow users to send private messages to other users (not the server). All the users have their usernames and passwords stored in an XML file Users can only send messages to online users Messages to offline users will be stored in a separate XML file
How does the SMTP protocol ensure the reliable delivery of email messages? Can you explain the SMTP handshake process?
When talking about HTTP, what does "session state" refer to?
In what way does the SMTP protocol serve a purpose?
d. What is the IP address of the host on which the browser is running? e. What type of browser initiates this message? Why is the browser type needed in an HTTP request message?
Let an SSL session employs a block cipher. Then the server sends to the client the IV in the clear.True or False.
Describe the role of "HTTP headers" in facilitating stateless communication between clients and servers.
How much time elapses with Non-persistent HTTP and no concurrent TCP connections when you use your phone and DNS looks up once every 10 minutes and the HTTP file references 8 objects each time?