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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. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer






2. Examines content passing through and makes a decision on the data based on a set of criteria - normal uses email filtering and web browsing






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






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






5. A packet filtering firewall works at this layer of the OSI model






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






7. Bastion host - dual homed firewall - multi homed firewall - screened host - screened subnet






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






9. Connects devices together to form a subnet - packet forwarding is based on MAC addresses - works at the data link layer of the OSI






10. User / registered ports






11. Used to pass data from one VLAN to another






12. An attacker redirects traffic by falsifying the IP address requested by ARP request






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






14. Ping flooding - ping of death - smurf - fraggle - SYN flood - land - teardrop - email flood






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






16. Session hijacking countermeasure






17. IDS response method using logging and notification






18. Collection on honeypots






19. IPS response method - terminate process/session - block/reject and redirect network traffic






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






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






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






23. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x






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






25. One process on every system - use local system resources - detect attacks that NIDS misses - examine data after decrypted - can be OS specific - more expensive






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






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






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






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






30. Acts as an organizations internal phone system






31. Dynamic / private ports






32. Attempt to block service or reduce activity by overloading the victim machine with ping requests






33. 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






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






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






36. Packet filtering - proxies - stateful inspection






37. Monitors network traffic to identify possible attacks






38. A variation of a smurf attack using UDP






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






40. IDS that relies on usage patterns and baseline operation - can ID new vulnerability - high rate of false alarms






41. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall






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






43. IP spoofing attack where the attacker can only send packets and has to guess about replies






44. A logical division of a computer network - in which all nodes can reach each other by broadcast at the data link layer - equivalent to a VLAN






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






46. Firewall that intercepts and inspects messages before delivering them - placed between trusted and untrusted networks - degrade network traffic - also know as application gateway






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






48. Web servers - FTP servers - DNS servers - mail servers should be located on the _____________






49. An attacker redirects valid request to malicious sites by feeding a DNS server altered records which are retained in its cache






50. Cable with copper core - has no physical transmission security and is easy to tap - 10mbps - maximum length 500 meters







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