Which of the following authentication mechanisms are supported by Dovecot? (Choose three.) A. ldap B. digest-md5 C. cram-md5 D. plain E. krb5

Which action in a Sieve filter forwards a message to another email address without changing the message? (Specify ONLY the action's name without any parameters.)

Which of the following actions are available in Sieve core filters? (Choose three.) A. drop B. discard C. fileinto D. relay E. reject

Which configuration parameter on a Postfix server modifies only the sender address and not the recipient address? A. alias_maps B. alias_rewrite_maps C. sender_canonical_maps D. sender_rewrite_m...

When are Sieve filters usually applied to an email? A. When the email is delivered to a mailbox B. When the email is relayed by an SMTP server C. When the email is received by an SMTP smarthost ...

雖然網路連線是愈快愈好，但有時候為了避免電腦佔滿對外的網路頻寬，必須要針對網路連線進行限速。Linux作業系統可以使用「Wonder Shaper」(wondershaper)這套開源工具來協助我們針對某個網路介面，來限制其上傳和下載的速度。

Select the alternative that shows the correct way to disable a user login for all users except root. A. The use of the pam_block module along with the /etc/login configuration file. B. The use of ...

Which option within the ISC DHCPD configuration file defines the IPv4 DNS server address(es) to be sent to the DHCP clients? A. domain-name-servers B. domain-server C. name-server D. servers

In order to specify alterations to an LDAP entry, what keyword is missing from the following LDIF file excerpt? Specify the keyword only and no other information. dn: cn=Some Person, dc=example,...

Which of the following PAM modules sets and unsets environment variables? A. pam_set B. pam_shell C. pam_vars D. pam_env E. pam_export