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






2. Bbenign activity reported as malicious






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






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






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






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






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






8. Head of a packet contains...






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






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






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






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






13. Malicious activity not reported or detected






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






15. 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






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






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






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






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






20. An attacker redirects valid request to malicious sites by feeding a DNS server altered records which are retained in its cache






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






22. Collection on honeypots






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






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






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






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






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






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






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






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






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






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






33. Monitors network traffic to identify possible attacks






34. Bastion host - dual homed firewall - multi homed firewall - screened host - screened subnet






35. 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






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






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






38. Acts as an organizations internal phone system






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






40. Level 2 firewall often used to filter web traffic






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






42. Session hijacking countermeasure






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






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






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






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






47. Firewall with several NICs connected to different networks






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






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






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