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






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






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






4. 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






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






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






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. A variation of a smurf attack using UDP






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






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






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






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






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






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






16. Twisted pair cable with speed capability of 10Mbps






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






18. Twisted pair cable with speed capability of 1Gbps






19. 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






20. IDS response method using logging and notification






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






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






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






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






25. Acts as an organizations internal phone system






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






27. Session hijacking countermeasure






28. Bbenign activity reported as malicious






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






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






31. Malicious activity not reported or detected






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






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






34. Firewall with several NICs connected to different networks






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






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






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






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






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






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






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






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






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






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






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






47. Head of a packet contains...






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






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






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