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






2. Spread as an office attachment with executable code programmed using macro facility - targets are data files - visual basic editor and other macro languages - payload executes when the code is launched






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






4. Connection oriented - before systems can communicate over an ATM network - they must establish a virtual circuit between each other - this can span across multiple ATM switches that also handle communications for other systems - at the end of the con






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






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






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






8. Publish separate mail - web - and DNS servers to the internet - provide appropriate access from internal network to internet - protect internal from external attack - provide defense in depth - protect all aspects of the system






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






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






11. True positive - false positive - true negative - false negative






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






13. 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






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






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






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






17. Program disguised as something helpful - only to perform actions the user did not intend. Opening ports - installing other programs - etc.






18. 53 bytes - 48 bytes for data - 5 bytes for the header






19. OSI






20. 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






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






22. It handles the establishment and maintenance of connections between systems






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






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






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






26. 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






27. Simple attack done by simply browsing available information that's allowed on a local network.






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






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






30. Trivial File Transfer Protocol - method to transfer files from one device to another without needing authentication






31. 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 it's corresponding IP address






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






33. 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.






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






35. One is for talking - one is for implementing






36. Four layers - Network Layer - Internet Layer - Transport Layer - Application layer






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






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






39. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






41. The practice of sending an ACK inside another packet going to the same destination






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






43. 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






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






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






46. NTP - BootP/DHCP - NFS file systems - SNMP - TFTP






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






48. 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






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






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