Sendmail Mail Systems
Exam Questions, Answers, Braindumps
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Which of the following functionalities do MTAs provide?
A. They deliver outbound e-mail to remote servers
B. They allow users to read their e-mail
C. They listen for inbound mail from remote servers
D. The pass e-mail for local users to the MIDA
E. The accept e-mail from the MDA
Answer: A, B
Hannah is an administrator running a small network,
and she needs to add a new mail server to the system.
Which of the following named.conf entries resembles
a mail server entry?
A. mailer IN A 126.96.36.199
B. mailer IN CNAME mail.linuxsite.org
C. mailer IN NS mail.linuxsite.org
D. IN MX 10 mail.linuxsite.org
E. IN NS dns.mail.linuxsite.org
Which of the following functions is provided by the
TCP weappers package?
A. TCP wrappers encrypts connections to the server
B. TCP wrappers encrypts connections to the server
except from authorized hosts or domains
C. TCP wrappers checks usernames and passwords before
D. TCP wrappers enhances the network performance of
E. TCP wrappers filters connections for common security
Which of the following are reasonable steps for a
system administrator to take to reduce the amount
of spam received by users of an e-mail system?
A. Only accept e-mail trusted hosts
B. Only accept inbound e-mail for users in this domain
C. Use the DNS blacklist service to refuse e-mail
from known spam sources
D. Disable any accounts which receive spam
E. Filter e-mail headers for known spam subject lines
Answer: B, C, E.
Which of the following would NOT be an effective way
for an e-mail user to prevent spam?
A. Creating a mail filter based on the mail header
B. Creating a mail filter against usernames with irregular
C. Creating a mail filter against mail from a specific
D. Using Procmail
Which component of qmail is directly involved in processing
An e-mail system has been configured to use the DNS
Blacklist (DNSBL) service. What additional setp is
performed by the system as a result?
A. It checks the user's e-mail account against the
deny spam database Web site
B. It sends a list of known spammers to a recipient
requesting the information to be added to their mail
C. It controls which applications mail can be sent
to based o the DNSBL database
D. It keeps track of recipients who requested to be
removed from mass mailings
E. It checks the IP of each connection from which
it is receiving mail agenst entries in the DNSBL database
Which of the following mail transports are already
included by the default generic-linux.mc file?
Answer: A, E
Which of the following is a valid entry for Sendmail's
A. real_name -add name _1, name 2,name3
B. real_name: name _1, name 2,name3
C. Alias name _1, name 2,name3 real_name
D. real_name= name _1, name 2,name3
E. Alias -add name _1, name 2,name3
Which of the following best describes the purpose
of relay control?
A. It controls which applications mail can be sent
to for processing
B. It optimizes Sendmail to properly use memory allocations
specific to an operating system
C. It removes the source information from the header
and redirects to another mail server with new header
D. It controls the acceptance of messages whose origin
and destination are both outside the domain of the
E. It controls the RPCs for a mail server
Which of the following features of Qmail make it a
better choice then Sendmail for some e-mail installations?
A. Excellent security record
B. Support for legacy e-mail protocols
C. High e-mail processing speed
D. More efficient usage of network bandwidth
E. Small footprint
Answer: A, C, E
Which of the following will result if "dnl"
is included after each command in the generic-linux.mc
A. The text from "dnl" unit the end of htat
line is ignored
B. DNS will not be used in rescolving the address
to the host mail server
C. Mail can only be sent to servers named in the /etc/hosts
D. All commands that do not have "dul" after
each line are applied locally
E. The command on the next line is not executed.
By default, where will Qmail deliver mail?