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






2. IP spoofing attack where the attacker can monitor packets and participate in bidirectional communication






3. Dynamic / private ports






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






5. Head of a packet contains...






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






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






8. 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






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






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






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






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






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






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






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






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






17. Used to pass data from one VLAN to another






18. Malicious activity not reported or detected






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






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






21. Packet filtering - proxies - stateful inspection






22. User / registered ports






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






24. Collection on honeypots






25. Firewall with several NICs connected to different networks






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






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






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






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






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






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






32. 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






33. Creating a illegitimate website with the intention of convincing victims that they are visiting a legitimate site - typically to collect confidential information






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






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






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






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






38. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other






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






40. Twisted pair cable with speed capability of 1Gbps






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






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






43. Acts as an organizations internal phone system






44. Unauthenticated Windows session where an attacker can gather list of users - groups - machines - shares - user and host SID






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






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






47. IDS response method using logging and notification






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






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






50. Level 2 firewall often used to filter web traffic