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 FTP that allows downloads only if the user knows the exact name of the file they're looking for






2. Handles transmissions across the physical media like wires - fiber - etc






3. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






4. Protects internal/external systems from attack - filters communications based on content - performs NAT - encrypts communications for VPN - logging to aid in intrusion detection






5. Bits of code embedded in programs to quickly gain access at a later time






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






7. Personal area network - phone tethering - bluetooth - etc






8. It interacts with data and prepares it to be transmitted across the network. It ensures reliable connectivity from end-to-end






9. Provides insight into traffic on the network - help detect problems with network operations - provides auditing for other security measures






10. Attaches itself to existing program files and activated when the exe is launched






11. Slow - requires stateful data tracking - inspects all fields - including variable-length fields






12. Threat requires a vector to cross the vulnerability - stop the ability of the threat to use the vector






13. Network traffic to the host - typically listens on all interface - uses signature analysis to identify events of interest






14. Allows admins to remotely access a system for troubleshooting. - E.g VNC - GoToMyPc - PC Anywhere






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






16. An attacker recruits zombie systems ahead of time to simultaneously release a flood of traffic at a specific target.






17. Multiple levels of protection must be deployed - an exercie in detection - measures must be across a wide range of controls - compromises happen when people leave sites - risk - CIA triad - strategies






18. It allows the transport layer to detect when the UDP headers or the payload have been modified in transit






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






20. Take the file and try to compress it. If it compresses - it means there is a pattern and it's more easily crackable

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






22. Relies on executable code insertion and user interaction to spread






23. Message in its encrypted form






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






25. Not a replacement for firewalls - hardening - strong policies - or other DiD methods - low maintenance - inexpensive






26. Protected at rest - protected in transit - secure the key






27. 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






28. Unified data carrying service - replacing from replay and ATM






29. Allows segmentation of a switch into different networks - regardless of where a system is plugged in - creates separate networks through software not hardware

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30. Uses a 1 to 1 substitution of arbitrary numbers - given a one character mapping - you cannot determine the key






31. 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






32. 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






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






34. A cracking tool inserted into the OS that allows the attacker to do as they please.






35. A time of check/time of use attack that exploits the difference in between when a security control was applied and the time the service was used.






36. True positive - false positive - true negative - false negative






37. A hash is produced when applied to a monitored file. The hash always generates the same value unless a change was made. HIDS software checks the hashes of monitored files and if a change is found - analyst is notified. - ie: tripwire






38. 1. physical 2. data 3. network 4. transport 5. session 6. presentation 7. application






39. 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






40. The Practice of sending an ACK inside another packet going to the same destination






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






42. keeps the same letters - but changes the position within the text - easy to break - can be combined with substitution






43. Used for connecting two physical segments of a network - segments traffic - breaks up collision domains - not generally used because of switches






44. Common backdoor to open a port - port scan scans for open ports on remote host - scans 0 - 65 -535 twice. TCP and UDP






45. Infects the EXE and make them operate slightly different - when infected - exe header sizes are altered to point to the appended viral code






46. 53 bytes - 48 bytes for data - 5 bytes for the header






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






48. Uniform protection - protected enclaves - information centric - threat vector analysis






49. Most commonly used transport protocol today - ensures reliable packet delivery - has error handling built in






50. UDP based infection - infected through vulnerability in SQL server - caused DoS on saturated networks