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






2. Level 2 firewall often used to filter web traffic






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






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






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






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






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






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






9. 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






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






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






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






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






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






15. A variation of a smurf attack using UDP






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






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






18. User / registered ports






19. Monitors network traffic to identify possible attacks






20. Bbenign activity reported as malicious






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






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






23. Packet filtering - proxies - stateful inspection






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






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






26. Session hijacking countermeasure






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






28. Acts as an organizations internal phone system






29. Head of a packet contains...






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






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






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






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






34. Collection on honeypots






35. A level 3 firewall that remembers / tracks network connections - maintains a state table - distinguish which side of a firewall a connection was initiated - higher security






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






37. 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






38. IDS response method using logging and notification






39. Malicious activity not reported or detected






40. Used to pass data from one VLAN to another






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






42. Twisted pair cable with speed capability of 10Mbps






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






44. Firewall with several NICs connected to different networks






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






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






47. 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






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






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






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