Which of the following malicious software travels across computer networks without the assistance of a user?

1. A. Worm
2. B. Virus
3. C. Hoax
4. D. Trojan horses

Correct Answer: A

Which of the following refers to a condition in which a hacker sends a bunch of packets that leave TCP ports half open?

1. A. Spoofing
2. B. Hacking
3. C. SYN attack
4. D. PING attack

Correct Answer: C

Which of the following can be used as a countermeasure against the SQL injection attack?
Each correct answer represents a complete solution. Choose two.

1. A. mysql_real_escape_string()
2. B. session_regenerate_id()
3. C. mysql_escape_string()
4. D. Prepared statement

Correct Answer: AD

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?

1. A. NetBus
2. B. QAZ
3. C. Donald Dick
4. D. Tini

Correct Answer: D

Which of the following tools can be used for steganography?
Each correct answer represents a complete solution. Choose all that apply.

1. A. Image hide
2. B. Stegbreak
3. C. Snow.exe
4. D. Anti-x

Correct Answer: AC