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






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






3. Seeks to reduce the probability and/or impact of a specific risk below an acceptable threshold






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






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






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






7. Packet filtering - proxies - stateful inspection






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






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






10. 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






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






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






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






14. Twisted pair cable with speed capability of 1Gbps






15. Head of a packet contains...






16. Monitors network traffic to identify possible attacks






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






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






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






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






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






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






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






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






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






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






27. 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






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






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






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






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






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






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






34. IDS response method using logging and notification






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






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






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






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






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






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






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






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






43. 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






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






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






46. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice






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






48. Twisted pair cable with speed capability of 10Mbps






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






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