Title: Mod 15 Quiz
Course: CIS 208: Linux/UNIX III: Intermediate System Administration, Networking, and Security ~ For IGNITE Review

Q: Which of these programs are open source MTAs?
- sendmail
- postfix
- exim
- mailq
A: sendmail; postfix; exim

Q: Which DNS records are used when resolving the incoming mail server for a domain?
- MX record for the domain.
- A record for the domain.
- A record for the mail server.
- PTR record for the domain.
A: MX record for the domain.; A record for the mail server.

Q: Encryption can be required for inbound email connections.
- True
- False
A: True

Q: SMTP connections are made on TCP port:
- 22
- 25
- 443
- 445
A: 25

Q: Encryption can be required for client connections to a mail server.
- True
- False
A: True

Q: An incoming mail relay:
- Is typically placed in a DMZ.
- Filters unwanted email.
- Forwards email to an outbound email relay.
- Listens on TCP port 125.
A: Is typically placed in a DMZ.; Filters unwanted email.

Q: An outgoing mail relay:
- May also be called a smarthost.
- Listens on TCP port 125.
- Filters unwanted email.
- Is an MDA.
A: May also be called a smarthost.

Q: What is the most commonly used open source spam filtering software?
A: spamassassin

Q: Which of the following commands shows all the current configuration for postfix?
- postfix -l
- postconf
- postfix -n
- postconf -n
A: postconf