A server technician has been asked to upload a few files from the internal web server to the internal FTP server. The technician logs in to the web server using PuTTY, but the connection to the FTP server fails. However, the FTP connection from the technician's workstation is successful. To troubleshoot the issue, the technician executes the following command on both the web server and the workstation:
ping ftp.acme.local
The IP address in the command output is different on each machine.
Which of the following is the MOST likely reason for the connection failure?

While deploying a new four-node web server cluster, a systems administrator has been instructed to use a technology that will make the website highly available without incurring any additional hardware costs. Which of the following clustering options is the BEST solution?

An administrator is configuring a host-based firewall for a server. The server needs to allow SSH, FTP, and LDAP traffic. Which of the following ports must be configured so this traffic will be allowed? (Choose three.)

A server administrator is using remote access to update a server. The administrator notices numerous error messages when using YUM to update the applications on a server.
Which of the following should the administrator check FIRST?

A USB drive has been purchased to move files between Windows, *nix, and Macintosh servers.
Which of the following filesystems is the BEST choice to ensure the drive can read and be written to by all of the servers?