Which of the following statements are true about netcat?
Each correct answer represents a complete solution. Choose all that apply.

• A.It can be used as a file transfer solution.
• B.The nc -z command can be used to redirect stdin/stdout from a program.
• C.It provides special tunneling, such as UDP to TCP, with the possibility of specifying all network parameters.
• D.It provides outbound and inbound connections for TCP and UDP ports.

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Which of the following statements about smurf is true?

• A.It is a denial of service (DoS) attack that leaves TCP ports open.
• B.It is a UDP attack that involves spoofing and flooding.
• C.It is an attack with IP fragments that cannot be reassembled.
• D.It is an ICMP attack that involves spoofing and flooding.

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Peter works as a Network Administrator for the PassGuide Inc. The company has a Windows-based network. All client computers run the Windows XP operating system. The employees of the company complain that suddenly all of the client computers have started working slowly. Peter finds that a malicious hacker is attempting to slow down the computers by flooding the network with a large number of requests.
Which of the following attacks is being implemented by the malicious hacker?

• A.Denial-of-Service (DoS) attack
• B.Buffer overflow attack
• C.Man-in-the-middle attack
• D.SQL injection attack

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You enter the netstat -an command in the command prompt and you receive intimation that port number 7777 is
open on your computer. Which of the following Trojans may be installed on your computer?

• A.NetBus
• B.Tini
• C.QAZ
• D.Donald Dick

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Which of the following types of channels is used by Trojans for communication?

• A.Overt channel
• B.Covert channel
• C.Loop channel
• D.Open channel

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