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






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






3. Confidentiality - symmetric encryption






4. 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






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






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






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






8. 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.






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






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






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






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






13. Most common approach - firewall - VPN - intrusion detection - AV - disk encryption - all parts of the organization receive equal protection - particularly vulnerable to malicious inside attacks






14. 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






15. Known - unknown - zero day






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






17. Weakness in a system - inherent in a complex system - majority are due to poor coding - gateway by which threats are manifested






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






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






20. Maintains complete TCP connection state and sequencing through 2 connections - address translation built-in by virtue of second connection above






21. True positive - false positive - true negative - false negative






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






23. Considered to be a perimeter device






24. 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






25. 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






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






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






28. destruction of data - leaking confidential information - providing backdoor access






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






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






31. Confidentiality - integrity - availability






32. Very simplistic. All systems are attached to the same cable segment. Rarely used because they're unreliable - low fault tolerance - poor traffic isolation - with limited scalability






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






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






35. 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.






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






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






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






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






40. 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






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






42. Replicates traffic onto all ports - no traffic monitoring - cannot control which ports should or shouldn't receive frames - forming a large collision domain.






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






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






45. 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






46. 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






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






48. Good for multimedia - can use small single packets - multicasting is required - speed is the highest priority






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






50. Confidentiality - integrity - availability