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Comptia Security +: Network Security

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Firewall that intercepts and inspects messages before delivering them - placed between trusted and untrusted networks - degrade network traffic - also know as application gateway






2. A locked down/hardened host on the public side of the firewall highly exposed to attacks (i.e. web server - email server)






3. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets






4. A firewall that checks all layers of a packet including content - verifying an expected response to a current communication session - also call a deep packet inspection






5. Multiple network defense components are placed throughout the organizations assets and the network is properly segmented






6. Used to pass data from one VLAN to another






7. Known as thicknet - 10mbps - limited to 500 meters






8. Most common DMZ implementation using three firewall interfaces (internet - intranet - DMZ)






9. Malicious activity not reported or detected






10. Head of a packet contains...






11. Amplifies the signal of incoming packets before broadcasting them to the network






12. Protocol used to map an known IP address to its corresponding media access control (MAC) address






13. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system






14. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address






15. A set of rules computers use to communicate with each other across a network






16. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice






17. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets






18. Firewall with several NICs connected to different networks






19. A person or program masquerades as another by presenting false information to gain an illegitimate advantage






20. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet






21. An attack where an attacker captures sensitive information and sends it again later in an attempt to replicate the transaction






22. Seeks to reduce the probability and/or impact of a specific risk below an acceptable threshold






23. IP - email - website - DNS - and ARP






24. Acts as an organizations internal phone system






25. IDS response method using logging and notification






26. Twisted pair cable with speed capability of 1Gbps






27. Crashing a computer by sending oversized packets (over 64 bytes) that it doesn't know how to handle






28. Twisted pair cable with speed capability of 10Mbps






29. Connects devices together to form a subnet - broadcasts incoming packets to all devices






30. Unauthenticated connections - creating the potential for a successful connection as an anonymous user






31. Take control of a session between a server and client - the users gets kicked off the session while the attacker inserts himself into the session by sending a reset request to the client






32. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system






33. A group of hosts on logical network segment that communicate as if they were attached to the same broadcast domain - regardless of their physical location






34. A ping message is broadcast to an entire network with a spoofed source IP addess of the victim computer - flooding the victim computer with responses during this attack






35. Cable used most in networks - maximum speed 1Gbps - maximum length 100 meters - susceptible to tap






36. Monitors network traffic to identify possible attacks






37. An application layer gateway works at this layer of the OSI model






38. Malicious insiders - connections that bypass the firewall (i.e. IM) - encrypted traffic/tunneling - social engineering - physical access are missed by ___________






39. A sniffer mode used to capture traffic addressed to/from another machine on the network






40. Two authoritative sources for your domain namespace with differing contents depending on whether the query is internal or external






41. A pool of public IP addresses is shared by a collection of private IP addresses






42. A physical or logical subnetwork that houses systems accessible to a larger untrusted network - usually the Internet - also known as DMZ






43. When a hacker takes over a TCP session between two machines - also known as session hijacking - foiled by the use of encrypted sessions






44. Cable designed for transmission at higher speeds (100Mbps - 2Gbps) and longer distances (2km) - expensive -eliminates signal tapping






45. Known as thinnet - 10mbps - limited to 185 meters






46. Firewall that communicates directly with a perimeter router and the internal network - 2 NICs - screens internal traffic






47. Network configuration that permits selected outsiders access internal information systems






48. Evolved from IDS - monitors network traffic - detects and responds to attack on network






49. User / registered ports






50. Firewall with two NICs - one internal and one external facing - NAT is often used with this firewall






Can you answer 50 questions in 15 minutes?



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