202-450 sample questions

Question 1

Which Postfix command can be used to rebuild all of the alias database files with a single invocation and without the need for any command line arguments?

Accepted Answer

newaliases

Answer

makealiases

Answer

postalias

Answer

postmapbuild

Question 2

After the installation of Dovecot, it is observed that the dovecot processes are shown in ps ax like this:

In order to associate the processes with users and peers, the username, IP address of the peer and the connection status, which of the following options must be set?

Accepted Answer

verbose_proctitle = yes in the Dovecot configuration

Answer

-with-linux-extprocnames for ./configure when building Dovecot

Answer

sys.ps.allow_descriptions = 1 in sysctl.conf or/proc

Answer

proc.all.show_status = 1 in sysctl.conf or/proc

Answer

process_format = “%u %l %s in the Dovecot configuration

Question 3

Which configuration parameter on a Postfix server modifies only the sender address and not the recipient address?

Accepted Answer

sender_canonical_maps

Answer

alias_maps

Answer

alias_rewrite_maps

Answer

sender_rewrite_maps

Question 4

Which of the following lines in the sshd configuration file should, if present, be changed in order to increase the security of the server? (Choose two.)

Accepted Answer

Protocol 2, 1

Accepted Answer

PermitRootLogin yes

Answer

PermitEmptyPasswords no

Answer

Port 22

Answer

IgnoreRhosts yes

Question 5

Which of the following DNS record types is used for reverse DNS queries?

Accepted Answer

PTR

Answer

CNAME

Answer

IN

Answer

REV

Answer

RIN

Question 6

Given the following Squid configuration excerpt:
cache_dir ufs/var/spool/squid3/ 1024 16 256

Which of the following directories will exist directly within the directory /var/spool/squid3/? (Choose two.)

Accepted Answer

0F

Accepted Answer

0b

Answer

A0

Answer

FF

Answer

00

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Free 202-450 sample questions

Which Postfix command can be used to rebuild all of the alias database files with a single invocation and without the need for any command line arguments?

After the installation of Dovecot, it is observed that the dovecot processes are shown in ps ax like this: In order to associate the processes with users and peers, the username, IP address of the peer and the connection status, which of the following options must be set?

Which configuration parameter on a Postfix server modifies only the sender address and not the recipient address?

Which of the following lines in the sshd configuration file should, if present, be changed in order to increase the security of the server? (Choose two.)

Which of the following DNS record types is used for reverse DNS queries?

Given the following Squid configuration excerpt: cache_dir ufs/var/spool/squid3/ 1024 16 256 Which of the following directories will exist directly within the directory /var/spool/squid3/? (Choose two.)

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