12 Questions
What are the IT services that appear in many levels of a company?
Planning, Installing, Development, Reliability, Scalability, Monitoring, Maintenance, Support
What is the primary function of a MUA (Mail User Agent)?
To send and receive email messages
What is the role of an MSA (Mail Submission Agent) in email transmission?
Receives emails from the email client, checks its headers, and verifies that the addresses are indicated correctly.
What is the primary function of an MTA (Mail Transfer Agent)?
Process and transfer emails, receiving messages from the MSA
In what scenario does message transfer not include MSAs?
When modern MTAs take on MSA's responsibilities
What are some popular MTAs?
Sendmail, Postfix, and Exim
What is the role of an MDA in the email delivery process?
MDA is the final agent before emails get delivered to the recipient's SMTP server.
What happens when domains are different in an SMTP relay process?
MTAs will query Domain Name System (DNS) records to find the IP address for the recipient's domain.
What is the purpose of the HELO command in an SMTP session?
The client sends a HELO command to identify itself to the SMTP server.
What happens to emails when the receiving SMTP server isn't ready to accept them?
Emails are put in the SMTP queue.
What command is used to initiate the termination of the SMTP connection?
The QUIT command is used to initiate the termination of the SMTP connection.
What is the response code sent by the server after a successful email transaction?
Code 250.
Learn about the general requirements and principles of IT services in a company. Understand how IT tasks are implemented at different levels. Quiz covers the basics of IT services and their role in a company.
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