202-450 Free 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.)