How many bytes does it take to represent the hexadecimal value OxFEDCBA?

You work as a Network Administrator for Net World Inc. The company has a Linux-based network. For testing purposes, you have configured a default IP-table with several filtering rules. You want to reconfigure the table. For this, you decide to remove the rules from all the chains in the table. Which of the following commands will you use?

Which aspect of UNIX systems was process accounting originally developed for?

Which of the following statements about DMZ is true?

Mark works as a Network Administrator for NetTech Inc. The company has a Windows 2003 domain-based network. The network contains ten Windows 2003 member servers, 150 Windows XP Professional client computers. According to the company's security policy, Mark needs to check whether all the computers in the network have all available security updates and shared folders. He also needs to check the file system type on each computer's hard disk. Mark installs and runs MBSACLI.EXE with the appropriate switches on a server. Which of the following tasks will he accomplish?