Which of the following laws or acts, formed in Australia, enforces prohibition against cyber stalking?

Which of the following tools works by using standard set of MS-DOS commands and can create an MD5 hash of an entire drive, partition, or selected files?

Which of the following is a formula, practice, process, design, instrument, pattern, or compilation of information which is not generally known, but by which a business can obtain an economic advantage over its competitors?

Which of the following components are usually found in an Intrusion detection system (IDS)?
Each correct answer represents a complete solution. Choose two.

You work as a Network Administrator for Net Perfect Inc. The company has a Windows Server 2008 network environment. The network is configured as a Windows Active Directory-based single forest single domain network. The network is configured on IP version 6 protocol. All the computers on the network are connected to a switch device. One day, users complain that they are unable to connect to a file server. You try to ping the client computers from the server, but the pinging fails. You try to ping the server's own loopback address, but it fails to ping. You restart the server, but the problem persists.
What is the most likely cause?