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. Session hijacking countermeasure






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






3. 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






4. 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






5. IDS response method using logging and notification






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






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






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






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






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






11. Forging an IP address with the address of a trusted host






12. A variation of a smurf attack using UDP






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






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






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






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






17. Packet filtering - proxies - stateful inspection






18. An attack where fragmented UDP packets with odd offset values are sent to the victim - when the OS attempts to rebuild the fragments they overwrite each other and cause confusion






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






20. Twisted pair cable with speed capability of 10Mbps






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






22. Head of a packet contains...






23. One private IP address is mapped to one public IP address






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






25. 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






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






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






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






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






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






31. Bbenign activity reported as malicious






32. Used to pass data from one VLAN to another






33. Acts as an organizations internal phone system






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






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






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






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






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






39. User / registered ports






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






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






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






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






44. 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






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






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






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






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






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






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