Test your basic knowledge |

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. Network configuration that permits selected outsiders access internal information systems






2. Twisted pair cable with speed capability of 10Mbps






3. Dynamic / private ports






4. One device per network segment - does not use local system resources - can't examine encrypted traffic - OS independent - less expensive






5. Firewall with several NICs connected to different networks






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






7. A logical connection point allowing computers and software to communicate and exchange data






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






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






10. A variation of a smurf attack using UDP






11. 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






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






13. Used by ISPs - single public network IP address is shared among many hosts on a private network - also known as PAT






14. 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






15. Level 2 firewall often used to filter web traffic






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






17. A complete transfer of all DNS zone information from one server to another






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






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






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






21. Head of a packet contains...






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






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






24. Examines a entire packet and determines action based on a complex set of rules






25. Variation of the SYN flood where SYN packets are spoofed to have the same source and destination IP address and port






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






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






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






29. IDS response method using logging and notification






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






31. Man in the middle attack where the attacker captures the traffic and sends it to the original recipient without altering the intercepted data






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






33. A decoy system - intentionally left exposed to attract/distract attackers - logs and monitors attacker activities






34. Allows all traffic except traffic that is specifically denied - also known as permissive access






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






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






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






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






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






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






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






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






43. Monitors network traffic to identify possible attacks






44. IDS that relies on the identification of known attack signatures






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






46. Connects two or more subnets - determines the best path to forward packets based on packet header and forwarding table information






47. Man in the middle attack where the content of an intercepted message is altered before it is sent on






48. Acts as an organizations internal phone system






49. A flaw in TCP/IP to verify that a packet really comes from the addess indicated in the IP header leads to this attack






50. Session hijacking countermeasure