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






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






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






4. A level 3 firewall that remembers / tracks network connections - maintains a state table - distinguish which side of a firewall a connection was initiated - higher security






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






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






7. 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






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






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






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






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






12. Acts as an organizations internal phone system






13. Dynamic / private ports






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






15. Twisted pair cable with speed capability of 10Mbps






16. Twisted pair cable with speed capability of 1Gbps






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






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






19. 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






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






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






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






23. User / registered ports






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






25. Packet filtering - proxies - stateful inspection






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






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






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






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






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






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






32. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer






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






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






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






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






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






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






39. Bbenign activity reported as malicious






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






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






42. IDS response method using logging and notification






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






44. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system






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






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






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






48. Session hijacking countermeasure






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






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