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






2. 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






3. 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






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






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






7. Simple attack done by simply browsing available information that's allowed on a local network.






8. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






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






12. Uses flow control to handle network congestion - can send larger amounts of data per packet - has guaranteed delivery of transmitted data - better protection against spoofing - reduces need for error checking at higher OSI layers






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






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






15. Small program triggered by an event that provides an action. E.g. scheduled file removal if countdown isn't reset - ie: employee was fired






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






17. 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






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






19. Netmasks or subnets provide a method for identifying what portion of an address is the network - and what portion is the host






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






21. fast - with little fidelity - examines header information and limited payload data






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






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






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






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






26. 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.






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






28. Network scanner.






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






30. -Malicious code might execute destructive overwrite to hard disks -Malicious mas mailing code might expose sensitive information to the internet - web server compromise might expose organization to ridicule - Web server compromise might expose custom






31. 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






32. Stateful firewalls maintain state of traffic flows






33. 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






34. Bits of code embedded in programs to quickly gain access at a later time






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






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






37. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






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






40. 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






41. packet filter firewalls rely on TCP flags to determine connection state. Attacker can send ACK packets only to bypass firewall.






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






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






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






45. Uniform protection - protected enclaves - information centric - threat vector analysis






46. Syn - Syn/Ack - Ack






47. 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






48. One is for talking - one is for implementing






49. ATM supports two types of virtual circuits: permanent virtual circuits and switches virtual circuit - PVC is set up in advance - usually manually - SVC is established automatically through a signaling protocol and can be created on the fly - establis






50. 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