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. OSI






2. 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






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






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






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






7. 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






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






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






10. logic bomb - trojan horse - trap door






11. 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






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






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






14. 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






15. 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






16. Network scanner.






17. Protected at rest - protected in transit - secure the key






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






19. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






20. Known - unknown - zero day






21. Multiple levels of protection must be deployed - an exercie in detection - measures must be across a wide range of controls - compromises happen when people leave sites - risk - CIA triad - strategies






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






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






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






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






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






27. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






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






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






30. Stateful firewalls maintain state of traffic flows






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






32. 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






33. 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






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






35. 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






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






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






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






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






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






42. A cracking tool inserted into the OS that allows the attacker to do as they please.






43. 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.






44. 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






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






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






47. The Practice of sending an ACK inside another packet going to the same destination






48. Infects MBR - no network spreading potential






49. keeps the same letters - but changes the position within the text - easy to break - can be combined with substitution






50. low interaction production honeypot - network daemon that can simulate other hosts - each host can appear as a different OS