102-500 Free Sample Questions

Which standardized TCP port is used by HTTPS services?

Which of the following options in the chrony configuration file define remote time sources? (Choose two.)

What command, depending on its options, can display the open TCP connections, the routing tables, as well as network interface statistics? (Specify only the command without any path or paremeters.)

Which of the following protocols is related to the term open relay?

How many IP addresses can be used for unique hosts inside the IPv4 subnet 192.168.2.128/26?

Which of the following entries in /etc/syslog.conf writes all mail related events to the file /var/log/maillog and sends all critical events to the remote server logger.example.com?

Which of the following commands is used to rotate, compress, and mail system logs?

What is the purpose of the iconv command?

If neither cron.allow nor cron.deny exist in /etc/, which of the following is true?

What is true about the file .profile in a user’s home directory?