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






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






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






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






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






8. Confidentiality - integrity - availability






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






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






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






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






13. 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






14. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






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






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






17. 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






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






19. Confidentiality - integrity - availability






20. 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






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






23. Going around with equipment to detect wireless networks






24. 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.






25. 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






26. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






27. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






28. Message in its encrypted form






29. 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






30. Four layers - Network Layer - Internet Layer - Transport Layer - Application layer






31. 53 bytes - 48 bytes for data - 5 bytes for the header






32. Stateful firewalls maintain state of traffic flows






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






34. 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






35. Infects MBR - no network spreading potential






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






37. 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






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






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






40. 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






41. 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






42. Provides insight into the tactics - motives - and attacker tools






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






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






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






46. 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






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






48. NTP - BootP/DHCP - NFS file systems - SNMP - TFTP






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






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