Test your basic knowledge |

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. An attempt to gain access by bombarding it with guesses until the password is found.






2. Provides insight into the tactics - motives - and attacker tools






3. Strips OS commands and characters from input - avoid making system calls from within the app * especially based on user input






4. ATM supports two types of virtual circuits: permanent virtual circuits and switches virtual circuit - PVC is set up in advance - usually manually - SVC is established automatically through a signaling protocol and can be created on the fly - establis






5. Attempt to manipulate or trick a person into providing information or access - bypass network security by exploiting humans - vector is often outside attack by telephone or visitor inside






6. rules indicate criteria in packets that represent events of interest - rules are applied to packets as they are received - alerts are created when matches are found






7. 1 and 2 - Voice/Low speed data - 3 - Voice/Data 10Mb - 4 - Voice/Data 16Mb - 5 - 5e - Voice/Data 100Mb to 1Gb - 6 - Standard for gigabit






8. Unencrypted message in its original form






9. open source tool for monitoring - can be used as a NIDS - has quick updates and flexibility for custom rules






10. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.






11. Network scanner.






12. 53 bytes - 48 bytes for data - 5 bytes for the header






13. Full open - half open (stealth scan) - UDP - Ping






14. Outside attack from network - Outsider attack from telephone - Insider attack from local network - insider attack from local system - attack from malicious code






15. Wide Area Network - Larger than MAN or LAN - uses public network - phone lines - and leased lines to tie LAN and MAN over a dispersed area






16. Parasitic malware - boot record infector - macro - COM/Script program infector - EXE program infector






17. A TCP version of ping - sends custom TCP packets to a host and listens for replies - enables port scanning and spoofing simultaneously






18. Poor programming without error checking can allow commands to be run in an input field. This can point to a command further in the buffer that will execute the attacker's payload.






19. It makes sure the data sent from one side to the other is in a format useful to the other side






20. Resource exhaustion like DDoS or fork attack - unexpected input value the machine does not know how to process






21. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






22. A system resource that has no legitimate purpose or reason for someone to connect to it - its purpose is to draw in attackers to understand how they break into a system






23. Prepends to the beginning of the file and gains control when the first instruction of the infected COM file is executed - appending to the end - virus writes its payload to the end and inserts jump instruction as the first instruction - which execute






24. Confidentiality - integrity - availability






25. Connects many WANs - MANs - and LANs - provided via ISP






26. Migrate to WPA2 - use strong authentication like PEAP or TTLS - audit network installations - require mutual auth between client and infrastructure equipment






27. Malware - insider threat - natural disaster - terrorism - pandemic






28. OSI






29. Uses a 1 to 1 substitution of characters - rotate the alphabet by 'n' number of characters - rot+X means rotate the letters X characters






30. Switches networks make it difficult to monitor traffic in promiscuous mode - topology must be able to support traffic aggregation for monitoring






31. FIN 130 - ACK 131 - FIN 570 - ACK 571






32. Intrusion detection system - it reports attacks against monitored systems/networks






33. When someone has compromised the integrity of data or a program. Allows attackers to create backdoors.






34. A spoofed IP is used to send a SYN to the target. It then responds with a SYN/ACK that never receives the final ACK to complete the handshake. This occupies a portion of the target's pre-established buffer for TCP and can prevent the target from acce






35. packet filter firewalls rely on TCP flags to determine connection state. Attacker can send ACK packets only to bypass firewall.






36. size is whatever the length of the UDP portion of the packet. Could be as large as 65 -535






37. Physical layer - Data link layer - Network Layer - Transport Layer - Session Layer - Presentation Layer - Application Layer






38. Not frequently seen on LANs because of expense - because of its traffic predictability and high bandwidth support - it's good for video streaming - encapsulates common protocols - uses virtual path identifiers to create end to end connectivity - has






39. Infects MBR - no network spreading potential






40. free windows based wireless scanner for 802.1b - detects access point settings - supports GSP integration - identifies networks as encrypted or unencrypted






41. Considered to be a perimeter device






42. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability






43. Hash Authentication - asymmetric - non repudiation - digital signature - hash + asymmetry






44. Confidentiality - integrity - availability






45. Identify critical assets and provide layered protection - data is accessed by applications - applications reside on hosts - hosts operate on networks






46. Combines the functionality of a hub and bride into a single device - keeps track of MACs attached to each port






47. deployment challenges including topology and access limitations - analyzing encrypted traffic - quantity vs. quality of signatures - performance limitations with extensive analysis techniques - very costly for proper management






48. Worms and Wireless - modems - tunnel anything through HTTP - social engineering






49. Application layer attacks may get through - dialup - VPN - extranet connections may bypass firewalls






50. It interacts with the application layer to determine which network services will be required