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






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






3. Confidentiality - integrity - availability






4. 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






5. 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






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






8. 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






9. low interaction production honeypot - network daemon that can simulate other hosts - each host can appear as a different OS






10. 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






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






12. TCP/IP - the IP protoco - The core routing protocol of the internet - - deals with transmission of packets between end points - defines the addressing scheme for the internet






13. Message in its encrypted form






14. 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






15. Isolates systems when they initially connect to the network - allows systems to be scanned and checked prior to being put on a trusted segment






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






17. 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.






18. 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






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






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






21. 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






22. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






23. The Practice of sending an ACK inside another packet going to the same destination






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






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






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






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






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






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






30. OSI






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






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






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






34. 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






35. Switches along the path can be requested to allocate the desired amount of bandwidth. If the circuit has the required bandwidth - the circuit is set up.






36. 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






37. Handles the network address scheme and connectivity of multiple network segments. It handles communication.






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






39. Going around with equipment to detect wireless networks






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






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






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






43. Relies on executable code insertion and user interaction to spread






44. 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.






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






46. CIDR is a shorthand way of specifying which portion of the address is the network - and which portion is the host






47. 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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48. 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






49. 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






50. Combines the functionality of a hub and bride into a single device - keeps track of MACs attached to each port