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. 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






2. Considered to be a perimeter device






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






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






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






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






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






8. Network scanner.






9. 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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10. 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.






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






12. 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.






13. Multiple levels of protection must be deployed - an exercie in detection - measures must be across a wide range of controls - compromises happen when people leave sites - risk - CIA triad - strategies






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






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






16. keeps the same letters - but changes the position within the text - easy to break - can be combined with substitution






17. 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






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






19. local area network - small network confined to small location - all equipment owned by a single entity - vulnerable to inside threats and logic bombs






20. 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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21. Most commonly used transport protocol today - ensures reliable packet delivery - has error handling built in






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






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






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






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






26. 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






27. destruction of data - leaking confidential information - providing backdoor access






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






29. Syn - Syn/Ack - Ack






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






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






32. Known - unknown - zero day






33. 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






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






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






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






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






38. One is for talking - one is for implementing






39. 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






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






41. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






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






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






44. OSI






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






46. 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






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






48. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






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