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






2. Syn - Syn/Ack - Ack






3. Known - unknown - zero day






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






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






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






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






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






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






10. 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






11. 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






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






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






14. OSI






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






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






17. 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






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






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






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






21. 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






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






23. A list of files is defined that should be monitored for a change - HIDS software calculates a one-way hash for each file - if a change is made to the file - the hash is changed






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






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






26. Going around with equipment to detect wireless networks






27. open source tool for monitoring - can be used as a NIDS - has quick updates and flexibility for custom rules






28. local area network - small network confined to small location - all equipment owned by a single entity - vulnerable to inside threats and logic bombs






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






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






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






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






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






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






35. 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






36. Confidentiality - integrity - availability






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






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






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






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






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






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






44. 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






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






46. Used by IDS for a baseline before analysis - attackers will try to de-normalize traffic to evade detection - IDS will normalize data for understood protocols






47. Infects MBR - no network spreading potential






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






49. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






50. 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