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. free windows based wireless scanner for 802.1b - detects access point settings - supports GSP integration - identifies networks as encrypted or unencrypted






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






3. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






4. 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






5. Network scanner.






6. True positive - false positive - true negative - false negative






7. 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






8. Unencrypted message in its original form






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






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






11. A sends a SYN packet to B - B acknowledges with a SYN/ACK - A replies with ACK






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






13. 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






14. Going around with equipment to detect wireless networks






15. Considered to be a perimeter device






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






17. Confidentiality - integrity - availability






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






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






20. Network traffic to the host - typically listens on all interface - uses signature analysis to identify events of interest






21. Known - unknown - zero day






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






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






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






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






26. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






27. 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






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






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






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






31. OSI






32. 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






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






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






35. 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






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






37. 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.






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






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






41. 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.






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






43. Trying to ID modems in a telephone exchange that may be susceptible to compromise






44. 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






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






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






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






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






49. 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






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