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. Protocol for mapping an IP address to a physical machine address that is recognized on the local network. A table - usually called the ARP cache - is used to maintain a correlation between each MAC and its corresponding IP address






2. 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.






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






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






5. Going around with equipment to detect wireless networks






6. removable media - email attachments - web browsing - social networking - network vulnerabilities - IM applications - p2p






7. 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






8. Switches along the path can be requested to allocate the desired amount of bandwidth. If the circuit has the required bandwidth - the circuit is set up.






9. Anonymous FTP - FTP passes through clear text - Bounce attacks with the PORT command - user can cause an FTP to open a connection from the FTP's own commands and bypass a firewall






10. Syn - Syn/Ack - Ack






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






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






13. Stateful firewalls maintain state of traffic flows






14. risk = threat x vulnerability - impossible to eliminate - security is an exercise in loss reduction






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






16. One is for talking - one is for implementing






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






18. 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






19. Small program triggered by an event that provides an action. E.g. scheduled file removal if countdown isn't reset - ie: employee was fired






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






21. Confidentiality - integrity - availability






22. Intellectual property - business goals - validated data - historical






23. War dialing - war driving - Sniffing - eavesdropping - dumpster diving - social engineering






24. Simplest form of a research honeypot - useful in identifying nature of TCP scans - allows attacker to complete 3-way handshake - listens on a defined port - logs incoming requests for analysis






25. logic bomb - trojan horse - trap door






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






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






28. 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






29. flags anomalous conditions in traffic on the network - requires understanding on what is normal - bases good traffic as a baseline






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






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






32. Means multiple iterations won't matter. If you encrypt with a key - then re-encrypt - it's the same as using one key.






33. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






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






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






37. An agreement on how different computer will work - protocols define the format and order of messages and what to do upon receipt of the messages - basically the rules of the network






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






39. A sends a SYN packet to B - B acknowledges with a SYN/ACK - A replies with ACK






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






41. Uses inclusive or exclusive lists - inclusive analysis utilizes a list of keywords - exclusive analysis utilizes a list of events that can be ignored






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






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






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






45. 53 bytes - 48 bytes for data - 5 bytes for the header






46. low interaction production honeypot - network daemon that can simulate other hosts - each host can appear as a different OS






47. Confidentiality - symmetric encryption






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






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






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