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






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






3. logic bomb - trojan horse - trap door






4. 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






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






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






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






8. Take the file and try to compress it. If it compresses - it means there is a pattern and it's more easily crackable

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


9. 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






10. A sends a SYN packet to B - B acknowledges with a SYN/ACK - A replies with ACK






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






12. 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






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






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






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






16. 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






17. Allows segmentation of a switch into different networks - regardless of where a system is plugged in - creates separate networks through software not hardware

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






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






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






21. 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






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






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






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






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






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






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






28. 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






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






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






31. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






32. Migrate to WPA2 - use strong authentication like PEAP or TTLS - audit network installations - require mutual auth between client and infrastructure equipment






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






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






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






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






37. Poor programming without error checking can allow commands to be run in an input field. This can point to a command further in the buffer that will execute the attacker's payload.






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






39. Syn - Syn/Ack - Ack






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






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






42. 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






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






44. Confidentiality - integrity - availability






45. Used by IDS for a baseline before analysis - attackers will try to de-normalize traffic to evade detection - IDS will normalize data for understood protocols






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






47. Confidentiality - integrity - availability






48. 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






49. 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






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