Ch11 Email Configuration Exam
-
The transfer of messages between machines and routing them to the correct destination is done by the Mail Transfer Agents (MTAs).
True or False?
- True
- False
-
By default, while running the mail utility, commands can be entered when a ___________ prompt is shown. (choose two)
@
{
?
%
&
-
What happens if the user sysadmin invokes the
mail
command interface and there are no unread mail messages?- The mail program exits without any message
- The cursor is placed in the message body for creating a new message
- The message
No mail for sysadmin
is displayed - Command returns an error code
-
While accessing mail through the
mail
command interface, a user sees 5 new messages in his mailbox. Since the second message appears important, he would like to read that message first. Whichmail
command should be used?print 2
display 2
2
show 2
-
A user is accessing
mail
through the mail command interface. The commanddelete 3
will delete the second mail message because mail messages are counted starting with 0 instead of 1. True or False?- True
- False
-
A user is replying to a mail message. After typing the response, which of the following key combinations will save and send the message?
- Ctrl+S
- Ctrl+C
- Ctrl+A
- Ctrl+D
-
A user is having trouble accessing the CDROM drive. He wants to send a message to the root user for help. Which of the following commands will create a new message that will be sent to the root user?
sendmail -n
mail @root
mail new_mesaage
mail root
-
The number of mail messages in the queue is increasing. Which of the following could cause this?
- All choices are valid
- Configuration issue with local mail server
- Target mail server is down
- Problem with mail delivery
-
Which of the following information is NOT available in the output from the
mailq
command?- Sender
- Out time
- Size
- Arrival time
-
Which of the following options, when used with the
mailq
command, will re-send the messages in the queue?-d
-s
-r
-q
-
The behavior of the
mailq
command is identical to thesendmail -bp
command for systems that are using thesendmail
utility.True or False?
- True
- False
-
A mail alias can be created for which of the following?
- User name
- All of the above
- Email address
- Command
-
The
sendmail
program refers to aliases defined in the _____________ file./etc/mail/aliases
/etc/aliases
/etc/mail.rc
/etc/mail/aliases.conf
-
The mail alias file contains the following alias:
movie_buffs
. Five users are associated with this alias. If a message is sent tomovie_buffs
, who will receive the message?- One of them will receive the message
- None, message will remain in the queue.
- All five members
- Only users who are logged in at that time
-
The file
/etc/mail/aliases.db
is the binary format of the file/etc/mail/aliases
. True or False?- True
- False
-
The ___________ command creates the
aliases.db
file from the data provided in the aliases file.- newaliases
- aliases
-
Deborah created a new alias and added it to the mail alias file. Next, she tried to use the alias through the
sendmail
command, but the new alias is not working. What is the most likely reason?- Maximum number of aliases is exceeded
- New alias was added with incorrect syntax
- New alias already existed
- The
aliases.db
file was not rebuilt using thenewaliases
command
-
The behavior of the
newaliases
command is identical to thesendmail -bi
command for systems that are using thesendmail
utility.- True
- False
-
A message was forwarded as per the
.forward
file found in the user’s home directory. What happens to the original message?- It goes back to the message queue
- Original message gets forwarded, no copy retained
- It is sent back to the sender
- A copy is retained in user’s mailbox
-
Mike, a production support engineer, needs to temporarily leave the company on an emergency leave. In his absence Mike wants Francis, another support engineer, to receive the support messages. What should Mike do?
- Pass on his login details to Francis so that he can access his email
- Create
.forward
file in his home directory and redirect messages - Initiate the process for creating new production support account
- Delete his mailbox
-
Simple Mail Transfer Protocol (SMTP) uses port ____________ for communication.
- 23
- 22
- 21
- 25
-
SMTP is the standard protocol for communication between email server and mail client. True or False?
- True
- False
-
You have observed that your organization is not getting any incoming messages. What would be the most likely problem?
- The administrator placed a
.forward
file in the root directory - Domain name is not registered
- POP3 is not configured
- Port 25 is not open on the firewall
- The administrator placed a
-
The
sendmail
utility uses ______________ for translating hostname into their network addresses.- FTP
- SMS
- SSH
- DNS
-
The ____________ file is used to configure the
sendmail
daemon./etc/rc.1
/etc/mail.mail.c
/etc/mail/sendmail.cf
/etc/mail.conf
-
Jackie wants to run
sendmail
as a daemon in the background. Which of the following options should she use withsendmail
?-bp
-bd
-bi
-bD
-
The
postfix
utility has several advantages oversendmail
. Which of the following is not an advantage associated withpostfix
?- Ease of administration
- Single executable
- Modular design
- Enhanced security
-
Which of the following statements is note true for
exim
?exim
has better security compared tosendmail
exim
has three queues for storing messages temporarilyexim
implements access control listsexim
has a single binary, similar tosendmail
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