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. IP - email - website - DNS - and ARP






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






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






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






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






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






7. 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






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






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






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






11. Head of a packet contains...






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






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






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






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






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






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






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






19. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address






20. User / registered ports






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






22. Dynamic / private ports






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






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






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






26. Firewall with several NICs connected to different networks






27. 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






28. Collection on honeypots






29. A feature of firewalls / routers that disguise the IP address of internal systems allowing connection to the Internet using one public address






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






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






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






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






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






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






37. Acts as an organizations internal phone system






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






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






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






41. A server that sits between an intranet and it's Internet connection - masking all IP addresses






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






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






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






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






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






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






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






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






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