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. 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






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






3. Confidentiality - integrity - availability






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






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






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






7. When someone has compromised the integrity of data or a program. Allows attackers to create backdoors.






8. 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






9. 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






10. Infects MBR - no network spreading potential






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






12. 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






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






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






15. 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.






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






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






18. 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






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






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






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






22. 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






23. It interacts with the application layer to determine which network services will be required






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






25. 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






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






27. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.






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






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






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






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






32. 1. physical 2. data 3. network 4. transport 5. session 6. presentation 7. application






33. Syn - Syn/Ack - Ack






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






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






36. An FTP that allows downloads only if the user knows the exact name of the file they're looking for






37. 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






38. Confidentiality - integrity - availability






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






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






41. Known - unknown - zero day






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






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






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






45. 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






46. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






47. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






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






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