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

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Which of the following ports is the default port for Layer 2 Tunneling Protocol (L2TP) ?

• A.TCP port 110
• B.TCP port 443
• C.UDP port 161
• D.UDP port 1701

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You work as a Network Administrator for Perfect World Inc. You are configuring a network that will include 1000BaseT network interface cards in servers and client computers. What is the maximum segment length that a 1000BaseT network supports?

• A.100 meters
• B.1000 meters
• C.480 meters
• D.10 meters

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What file instructs programs like Web spiders NOT to search certain areas of a site?

• A.Search.txt
• B.Spider.txt
• C.Restricted.txt
• D.Robots.txt

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Which of the following utilities provides an efficient way to give specific users permission to use specific system commands at the root level of a Linux operating system?

• A.SSH
• B.SUDO
• C.Snort
• D.Apache

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