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






2. 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






3. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






4. Confidentiality - integrity - availability






5. 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






6. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






9. 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






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






11. -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






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






13. 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






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






15. 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






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






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






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






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






20. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






21. Known - unknown - zero day






22. 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






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






24. 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






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






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






27. 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






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






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






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






31. A list of files is defined that should be monitored for a change - HIDS software calculates a one-way hash for each file - if a change is made to the file - the hash is changed






32. logic bomb - trojan horse - trap door






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






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






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






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






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






38. Confidentiality - integrity - availability






39. True positive - false positive - true negative - false negative






40. 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






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






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






43. 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






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






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






47. Going around with equipment to detect wireless networks






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






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






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







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