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






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






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






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






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






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






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






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






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






10. Twisted pair cable with speed capability of 1Gbps






11. Used to pass data from one VLAN to another






12. Dynamic / private ports






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






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






15. Monitors network traffic to identify possible attacks






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






17. Generate random TCP sequence numbers and encrypt traffic countermeasure what attacks






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






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






20. User / registered ports






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






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






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






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






25. Connects devices together to form a subnet - packet forwarding is based on MAC addresses - works at the data link layer of the OSI






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






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






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






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






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






31. Acts as an organizations internal phone system






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






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






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






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






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






37. Head of a packet contains...






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






39. 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






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






41. A variation of a smurf attack using UDP






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






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






44. Twisted pair cable with speed capability of 10Mbps






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






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






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






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






49. Session hijacking countermeasure






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