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CISSP Domain 4: Communication and Network Security
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Domain 4: Communication and Network Security Practice Questions
Questions from the following topics are included in this domain:   
Assess secure network design principles.   
Implement secure network design principles.  
Secure network components using network access control devices.   
Implement secure design communication channels.  
Understand data communications and virtualized networks.    

CISSP Domain 4: Communication and Network Security
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25 Questions

1. Alexei is a marketing representative for GL Food Bars and maintains a mailing list for 5,000 customers. His ISP alerts him that his email server is sending spam to millions of users at 100 messages per minute. What is MOST LIKELY the problem?
2. Mikoopst is a hacker seeking vulnerabilities to attack a bank and steal money electronically. Which network device is likely to be the weakest vulnerability?
3. Barry is a network engineer seeking to directly network two nearby buildings. Which option should he choose since the empty land between the two buildings is owned by his competitor?
4. Which VPN protocol operates at layer 2 of the OSI model using 256-bit encryption?
5. Mattrich uses a VPN to work from his Apple computer. While connected, he clicks a link from his personal email account. Days later, corporate offices are down because of a massive ransomware attack. What MOST LIKELY occurred?
6. Difata is new to hacking and has discovered a new attack. The instructions state that to best breach the victim server, you should launch the attack on IP address 127.0.0.1. What type of individual is Difata?
7. Daria, a network engineer, seeks to set up a network that uses CSMA/CA. Which of the following should she select?
8. Justin is a senior security officer asked for his opinion on installing wireless access points in a secure area. What does he recommend as security levels for the implementation?
9. Louis, a security engineer, is testing methods to defeat the firewall. Which method would he find MOST effective?
10. Which of the following is a difference between an application-level firewall over a circuit-level firewall?
11. Wireless access points and wireless systems use which technology?
12. Which protocols operate at the application, presentation, network, and data link layers, respectively?
13. What is another term for a pharming attack where victims get diverted to an attacker's fake website?
14. Molly is a network engineer tasked with reducing interference on VoIP phones within the network. Which of the following is her BEST solution?
15. What are the BEST examples of IPv6 addresses here? (Choose two.)
16. Alan is a network engineer tasked with writing firewall rules that allow SYN-ACK-SYN communications. Which protocol should he set to permit?
17. Which of these protocols operate at the transport layer of the OSI model? (Choose two.)
18. Of the following, which two are NOT VPN protocols? (Choose two)
19. Serena is a hacker, exfiltrating corporate files to her partner, Janine. What is the BEST way for Serena to launch the upload without getting caught?
20. Kirlyam is a security administrator seeking the best way to defend her organization's network against sniffing. What is the BEST way for her to accomplish this?
21. What is the primary purpose of an attacker launching an ARP poisoning attack?
22. Emil is a network administrator setting up systems so that when users use FQDN, they are converted to IP addresses. Which technology is he configuring? (Choose two.)
23. Brett is a network manager architecting a wired network through KloutCo. Part of the cabling will run above drop ceilings and through raised floors. Which of the following is his BEST recommendation?
24. Which device operates at the data link layer of the OSI model?
25. Matt is a salesperson for Wilco and plans to use the Wi-Fi offered at his local restaurant. He enters the Wi-Fi password but cannot access the internet like others there. The computer works fine at home on the VPN and at work. What is MOST LIKELY to be the problem?

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