John works as a Professional Ethical Hacker for NetPerfect Inc. The company has a Linux-based network. All client computers are running on Red Hat 7.0 Linux. The Sales Manager of the company complains to John that his system contains an unknown package named as tar.gz and his documents are exploited. To resolve the problem, John uses a Port scanner to enquire about the open ports and finds out that the HTTP server service port on 27374 is open. He suspects that the other computers on the network are also facing the same problem.
John discovers that a malicious application is using the synscan tool to randomly generate IP addresses.
Which of the following worms has attacked the computer?

• A.Code red
• B.Ramen
• C.LoveLetter
• D.Nimda

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Which of the following statements about Ping of Death attack is true?

• A.In this type of attack, a hacker sends ICMP packets greater than 65,536 bytes to crash a system.
• B.In this type of attack, a hacker maliciously cuts a network cable.
• C.This type of attack uses common words in either upper or lower case to find a password.
• D.In this type of attack, a hacker sends more traffic to a network address than the buffer can handle.

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Which of the following reads and writes data across network connections by using the TCP/IP protocol?

• A.NSLOOKUP
• B.Netcat
• C.Fpipe
• D.2Mosaic

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Which of the following commands can be used for port scanning?

• A.nc -t
• B.nc -z
• C.nc -w
• D.nc -g

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You see the career section of a company's Web site and analyze the job profile requirements. You conclude that the company wants professionals who have a sharp knowledge of Windows server 2003 and Windows active directory installation and placement. Which of the following steps are you using to perform hacking?

• A.Scanning
• B.Covering tracks
• C.Reconnaissance
• D.Gaining access

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