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. Dynamic / private ports






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






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






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






5. Twisted pair cable with speed capability of 1Gbps






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






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






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






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






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






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






12. Collection on honeypots






13. Malicious activity not reported or detected






14. 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






15. Level 2 firewall often used to filter web traffic






16. 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






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






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






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






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






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






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






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






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






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






26. A method - used by switches and email servers - of delivering messages which are temporarily held by an intermediary before being sent to their final destination






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






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






29. Twisted pair cable with speed capability of 10Mbps






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






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






32. 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






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






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






35. 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






36. User / registered ports






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






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






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






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






41. IPS response method - terminate process/session - block/reject and redirect network traffic






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






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






44. A variation of a smurf attack using UDP






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






46. Firewall with several NICs connected to different networks






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






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






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






50. 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