An email administrator is tasked to set up a Linux mail server. One of the requirements is to close
all ports except SSH, HTTPS, SMTP, POP3, and IMAP4. Which of the following commands should
be used to see which ports are currently open on the email server? (Choose two.)

A new version of the primary OS used by a company has been released. Due to some significant
changes in the OS, a system administrator wants to see which remotely accessible services are
enabled by default to access the security risk prior to upgrading to the new version. Which of the
following utilities should the administrator use?

A network administrator installs a new web server and notices that the server was configured with
one quad-port NIC. In order to properly provision the hardware resources, which of the following
describes how the NIC should be configured?

A system administrator has a database server that crashes at random times. No changes have
been made to either the server’s software or hardware. Which of the following is the FIRST step
the administrator should take towards resolving this issue?

An administrator thinks that a particular network connection is dropping packets. Which of the
following tools would the administrator use to BEST identify where the packets are being dropped?

A technician has access to a recent full backup. Data has changed since the last backup. Which of
the following provides the fastest restore while minimizing backup size?

An administrator is using IPv4 on all servers. If a new technician installs only IPv6 on a workstation,
which of the following servers will the workstation be able to access?