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






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






3. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






5. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability






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






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






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






9. Syn - Syn/Ack - Ack






10. 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






11. Confidentiality - symmetric encryption






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






13. 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






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






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






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






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






18. 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






19. Weakness in a system - inherent in a complex system - majority are due to poor coding - gateway by which threats are manifested






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






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






22. Application layer attacks may get through - dialup - VPN - extranet connections may bypass firewalls






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






24. True positive - false positive - true negative - false negative






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






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






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






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






29. 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






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






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






32. 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






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






34. 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






35. 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






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






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






38. Unencrypted message in its original form






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






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






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






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






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






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






45. One is for talking - one is for implementing






46. 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






47. 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.






48. 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






49. Uniform protection - protected enclaves - information centric - threat vector analysis






50. Attaches itself to existing program files and activated when the exe is launched






Can you answer 50 questions in 15 minutes?



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