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






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






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






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






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






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






7. CIDR is a shorthand way of specifying which portion of the address is the network - and which portion is the host






8. Attacks systems through known vulnerabilities - automatically scans for more systems to attack - lowers system defenses - installs rootkit or root shell - opens up back doors - self contained malware that can copy itself






9. Confidentiality - integrity - availability






10. Metropolitan area network - spans across city or town - larger than a LAN - uses fiber for backbone






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






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






13. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






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






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






16. Stateful firewalls maintain state of traffic flows






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






18. Work groups that require additional protection are segmented from the rest of the internal organization - restricting access to critical segments - system of VPNs - internal firewall - VLANs and ACLs






19. 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






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






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






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






23. 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






24. Message in its encrypted form






25. 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






26. OSI






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






29. Known - unknown - zero day






30. 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






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






32. True positive - false positive - true negative - false negative






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






34. Confidentiality - integrity - availability






35. Uses flow control to handle network congestion - can send larger amounts of data per packet - has guaranteed delivery of transmitted data - better protection against spoofing - reduces need for error checking at higher OSI layers






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






37. 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.






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






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






40. -Malicious code might execute destructive overwrite to hard disks -Malicious mas mailing code might expose sensitive information to the internet - web server compromise might expose organization to ridicule - Web server compromise might expose custom






41. 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






42. 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






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






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






45. Network scanner.






46. Free linux WLAN analysis tool - completely passive - cannot be detected - supports advanced GPS integration and mapping features - used for wardriving - WLAN vulerability assessment






47. Unencrypted message in its original form






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






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






50. Confidentiality - symmetric encryption