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. Wide Area Network - Larger than MAN or LAN - uses public network - phone lines - and leased lines to tie LAN and MAN over a dispersed area






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






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






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






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






6. 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






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






8. 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






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






10. Infects MBR - no network spreading potential






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






12. 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






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






14. Personal area network - phone tethering - bluetooth - etc






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






16. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






17. Known - unknown - zero day






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






19. Confidentiality - symmetric encryption






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






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






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






23. An attempt to gain access by bombarding it with guesses until the password is found.






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






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






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






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






28. -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






29. 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






30. 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






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






32. 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






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






34. Attempt to manipulate or trick a person into providing information or access - bypass network security by exploiting humans - vector is often outside attack by telephone or visitor inside






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






36. Connection oriented - before systems can communicate over an ATM network - they must establish a virtual circuit between each other - this can span across multiple ATM switches that also handle communications for other systems - at the end of the con






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






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






39. logic bomb - trojan horse - trap door






40. 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






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






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






43. 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.






44. Protects internal/external systems from attack - filters communications based on content - performs NAT - encrypts communications for VPN - logging to aid in intrusion detection






45. 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






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






47. OSI






48. Confidentiality - integrity - availability






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






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







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