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






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






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






4. Handles transmissions across the physical media like wires - fiber - etc






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






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






7. OSI






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






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






10. 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






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






12. Physical layer - Data link layer - Network Layer - Transport Layer - Session Layer - Presentation Layer - Application Layer






13. 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






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






15. logic bomb - trojan horse - trap door






16. local area network - small network confined to small location - all equipment owned by a single entity - vulnerable to inside threats and logic bombs






17. Parasitic malware - boot record infector - macro - COM/Script program infector - EXE program infector






18. True positive - false positive - true negative - false negative






19. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






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






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






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






26. 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






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






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






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






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






31. An attacker spoofs the victim's IP and sends an ICMP ECHO request to the broadcast address of a network. When every system responds - a DoS occurs.






32. 53 bytes - 48 bytes for data - 5 bytes for the header






33. Syn - Syn/Ack - Ack






34. Confidentiality - integrity - availability






35. 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






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






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






38. 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






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






40. Attacks systems through known vulnerabilities - automatically scans for more systems to attack - lowers system defenses - installs rootkit or root shell - opens up back doors - self contained malware that can copy itself






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






43. Confidentiality - symmetric encryption






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






45. Network scanner.






46. flags anomalous conditions in traffic on the network - requires understanding on what is normal - bases good traffic as a baseline






47. Isolates systems when they initially connect to the network - allows systems to be scanned and checked prior to being put on a trusted segment






48. Threat requires a vector to cross the vulnerability - stop the ability of the threat to use the vector






49. 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






50. Infects the EXE and make them operate slightly different - when infected - exe header sizes are altered to point to the appended viral code