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






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






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






4. 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.






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






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






7. True positive - false positive - true negative - false negative






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






9. 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






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






11. 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 its corresponding IP address






12. 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






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






14. 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






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






16. 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






17. A low end firewall that can quickly be deployed using existing hardware. They examine packets themselves with no content.






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






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






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






21. 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






22. Infected millions through various methods - vulnerability in the MS Server Service - brute force admin password through network shares - infect removable devices with a malicious autorun script






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






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






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






26. Connects the physical part of the network (cables) with the abstract (packets and datastreams)






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






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






29. 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






30. 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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31. Message in its encrypted form






32. 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.






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






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






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






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






37. 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






38. 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






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






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






41. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






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






44. 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






45. Known - unknown - zero day






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






47. 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






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






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






50. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0







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