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15 Cards in this Set
- Front
- Back
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what does SMTP use to transfer messages between hosts?
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a series of plain-text commands
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What port does ExSvr2k3 use for SMTP to establish host communications?
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TCP-25
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What are the 6 common SMTP commands?
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- Helo
- Data - Quit - Rset - Vrfy - Turn |
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What are the 4 common ESMTP commands?
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- Aturn
- Eturn - Help - Vrfy |
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What does the SMTP command "Turn" do?
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Triggers the recipient server to send queued messages destined for the sending server.
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What doe the SMTP command "Helo" do?
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Requests an SMTP session and identifies the sending SMTP host to the receiving host.
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What does the ESMTP command "Etrn" do?
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specifies the remote host to which the mail is to be delivered.
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What is the major caution when configuring the Smart Hosts?
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Dont put 2 smart hosts on the same server!!!
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What is a Smart Host used for?
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When the recipient is not on the Exchange organization server the mail is sent to a "smart host" to be sent off the server.
(NMCI mail --> Yahoo mail) |
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What happens to the unresolved messages?
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it is returned to the smart host with a non-delivery report (NDR)
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What is the default SMTP connection?
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DNS
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What can happen if exchange servers use each other as smart hosts?
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- Mail will be put into a relay loop
- Server performance will be degraded |
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What are the 3 Authentication methods for securing SMTP traffic?
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- Anonymous Authentication
- Basic Authentication - Windows Integrated Authentication |
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Of the 3 modes of authentication, which mode offers security, efficient communication and transparency?
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Windows Integrated Authentification
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________ ________ is supported by all clients and is used to allow users to access unsecured content in public folders.
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Anonymous Authentication
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