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. 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






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






3. -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






4. 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






5. 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






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






7. One is for talking - one is for implementing






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






9. Unencrypted message in its original form






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






11. 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






12. 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






13. Resource exhaustion like DDoS or fork attack - unexpected input value the machine does not know how to process






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






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






16. 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






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






18. Infects MBR - no network spreading potential






19. Netmasks or subnets provide a method for identifying what portion of an address is the network - and what portion is the host






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






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






22. 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.






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. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability






25. An attacker spoofs the victim's IP and sends an ICMP ECHO request to the broadcast address of a network. When every system responds - a DoS occurs.






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






27. Allows segmentation of a switch into different networks - regardless of where a system is plugged in - creates separate networks through software not hardware

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28. 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






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






30. 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






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






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






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






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






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






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






37. Known - unknown - zero day






38. Confidentiality - symmetric encryption






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






40. 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






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






42. Not a replacement for firewalls - hardening - strong policies - or other DiD methods - low maintenance - inexpensive






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






44. fast - with little fidelity - examines header information and limited payload data






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






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






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






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






49. 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.






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