Which of the following statements about a Trojan horse are true?
Each correct answer represents a complete solution. Choose two.

• A.It is a macro or script that attaches itself to a file or template.
• B.It infects the boot record on hard disks and floppy disks.
• C.It is a malicious software program code that resembles another normal program.
• D.The writers of a Trojan horse can use it later to gain unauthorized access to a computer.

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You work as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based network. You are working as a root user on the Linux operating system. Your company is facing an IP spoofing attack.
Which of the following tools will you use to get an alert saying that an upcoming IP packet is being spoofed?

• A.Despoof
• B.Neotrace
• C.Dsniff
• D.ethereal

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Which of the following tools is used to attack the Digital Watermarking?

• A.Gifshuffle
• B.2Mosaic
• C.Steg-Only Attack
• D.Active Attacks

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You are hired as a Database Administrator for Jennifer Shopping Cart Inc. You monitor the server health through the System Monitor and found that there is a sudden increase in the number of logins.
Which of the following types of attack has occurred?

• A.Virus
• B.Injection
• C.Worm
• D.Denial-of-service

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You run the following PHP script:
<?php $name = mysql_real_escape_string($_POST["name"]);
$password = mysql_real_escape_string($_POST["password"]); ?>
What is the use of the mysql_real_escape_string() function in the above script.
Each correct answer represents a complete solution. Choose all that apply.

• A.It can be used to mitigate a cross site scripting attack.
• B.It can be used as a countermeasure against a SQL injection attack.
• C.It escapes all special characters from strings $_POST["name"] and $_POST["password"].
• D.It escapes all special characters from strings $_POST["name"] and $_POST["password"] except ' and ".

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