You work as a Network Administrator for Tech Perfect Inc. The company has a Linux-based network. You want to kill a process running on a Linux server. Which of the following commands will you use to know the process identification number (PID) of the process?

• A.killall
• B.getpid
• C.kill
• D.ps

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Which of the following commands is used to change file access permissions in Linux?

• A.chown
• B.chgrp
• C.chperm
• D.chmod

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John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based network. John is working as a root user on the Linux operating system. He wants to change the modified date and time of the file private.txt to 11 Nov 2009 02:59:58 am. Which of the following commands will John use to accomplish his task?
Each correct answer represents a complete solution. Choose all that apply.

• A.rm private.txt #11 Nov 2009 02:59:58 am
• B.touch -t 200911110259.58 private.txt
• C.touch -d "11 Nov 2009 02:59:58 am" private.txt
• D.touch private.txt #11 Nov 2009 02:59:58 am

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A sensor that uses a light beam and a detecting plate to alarm if the light beam is obstructed is most commonly used to identify which of the following threats?

• A.Smoke
• B.Toxins
• C.Power
• D.Water
• E.Natural Gas

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With regard to defense-in-depth, which of the following statements about network design principles is correct?

• A.A secure network design will seek to separate resources by providing a security boundary between systems that have different network security requirements.
• B.A secure network design will seek to provide an effective administrative structure by providing a single choke-point for the network from which all security controls and restrictions will be enforced.
• C.A secure network design requires that networks utilize VLAN (Virtual LAN) implementations to insure that private and semi-public systems are unable to reach each other without going through a firewall.
• D.A secure network design requires that systems that have access to the Internet should not be accessible from the Internet and that systems accessible from the Internet should not have access to the Internet.

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