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






2. Firewall that intercepts and inspects messages before delivering them - placed between trusted and untrusted networks - degrade network traffic - also know as application gateway






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






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






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






6. Head of a packet contains...






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






8. Collection on honeypots






9. 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






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






11. 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






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






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






14. Bbenign activity reported as malicious






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






16. User / registered ports






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






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






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






20. 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






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






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






23. IDS response method using logging and notification






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






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






26. Multiple network defense components are placed throughout the organizations assets and the network is properly segmented






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






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






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






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






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






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






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






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






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






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






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






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






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






40. Malicious activity not reported or detected






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






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






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






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






45. Firewall with several NICs connected to different networks






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






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






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






49. Session hijacking countermeasure






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