HOD401 Chapter 5

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a

1. Which of the following is used for banner grabbing? A. Telnet B. FTP C. SSH D. Wireshark

a

10. What is the three-way handshake? A. The opening sequence of a TCP connection B. A type of half-open scan C. A Xmas tree scan D. Part of a UDP scan

c

11. A full-open scan means that the three-way handshake has been completed. What is the difference between this and a half-open scan? A. A half-open uses TCP. B. A half-open uses UDP. C. A half-open does not include the final ACK. D. A half-open includes the final ACK.

a

12. What is the sequence of the three-way handshake? A. SYN, SYN-ACK, ACK B. SYN, SYN-ACK C. SYN, ACK, SYN-ACK D. SYN, ACK, ACK

a

13. What is an ICMP echo scan? A. A ping sweep B. A SYN scan C. A Xmas tree scan D. Part of a UDP scan

d

14. Which best describes a vulnerability scan? A. A way to find open ports B. A way to diagram a network C. A proxy attack D. A way to automate the discovery of vulnerabilities

c

15. What is the purpose of a proxy? A. To assist in scanning B. To perform a scan C. To keep a scan hidden D. To automate the discovery of vulnerabilities

b

16. What is Tor used for? A. To hide web browsing B. To hide the process of scanning C. To automate scanning D. To hide the banner on a system

a

17. Why would you need to use a proxy to perform scanning? A. To enhance anonymity B. To fool firewalls C. Perform half-open scans D. To perform full-open scans

a

18. A vulnerability scan is a good way to do what? A. Find open ports B. Find weaknesses C. Find operating systems D. Identify hardware

d

19. A banner can do what? A. Identify an OS B. Help during scanning C. Identify weaknesses D. Identify a service

b

2. Which of the following is used for identifying a web server OS? A. Telnet B. Netcraft C. Fragroute D. Wireshark

a

20. nmap is required to perform what type of scan? A. Port scan B. Vulnerability scan C. Service scan D. Threat scan

d

3. Which of the following is used to perform customized network scans? A. Nessus B. Wireshark C. AirPcap D. nmap

d

4. Which of the following is not a flag on a packet? A. URG B. PSH C. RST D. END

a

5. An SYN attack uses which protocol? A. TCP B. UDP C. HTTP D. Telnet

b

6. Which of the following types of attack has no flags set? A. SYN B. NULL C. Xmas tree D. FIN

b

7. What is missing from a half-open scan? A. SYN B. ACK C. SYN-ACK D. FIN

b

8. During an FIN scan, what indicates that a port is closed? A. No return response B. RST C. ACK D. SYN

b

9. During a Xmas tree scan what indicates a port is closed? A. No return response B. RST C. ACK D. SYN


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