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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. Bbenign activity reported as malicious






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






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






4. Session hijacking countermeasure






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






6. Head of a packet contains...






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






8. A variation of a smurf attack using UDP






9. 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






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






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






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






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






14. Level 2 firewall often used to filter web traffic






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






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






17. 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






18. A packet filtering firewall works at this layer of the OSI model






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






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






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






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






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






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






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






26. A firewall that checks all layers of a packet including content - verifying an expected response to a current communication session - also call a deep packet inspection






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






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






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






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






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






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






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






34. 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






35. Twisted pair cable with speed capability of 10Mbps






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






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






38. Malicious activity not reported or detected






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






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






41. Acts as an organizations internal phone system






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






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






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






45. Used to pass data from one VLAN to another






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






47. Dynamic / private ports






48. 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






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






50. Firewall with several NICs connected to different networks






Can you answer 50 questions in 15 minutes?



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