100% Pass Guarantee with GIAC GSNA Dumps!

Correct Answer:

A firewall is a set of related programs configured to protect private networks connected to the Internet from intrusion. It is used to regulate the network traffic between different computer networks. It permits or denies the transmission of a network packet to its destination based on a set of rules. A firewall is often installed on a separate computer so that an incoming packet does not get into the network directly.

Correct Answer: A

/var/log/mailog generally contains the source and destination IP addresses, date and time stamps, and other information that may be used to check the information contained within an e-mail header. Linux uses Syslog to maintain logs of what

has occurred on the system. The configuration file /etc/syslog.conf is used to determine where the Syslog service (Syslogd) sends its logs. Sendmail can create event messages and is usually configured to record the basic information such

as the source and destination addresses, the sender and recipient addresses, and the message ID of e-mail. The syslog.conf will display the location of the log file for e-mail.

Answer: B, C, D are incorrect. All these files are not valid log files.

Correct Answer: B

According to the scenario, John is a root user. Hence, the value of the environmental variables $USER and $UID will be root and 0, respectively.