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. Stateful firewalls maintain state of traffic flows






2. Message in its encrypted form






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






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






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






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






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






8. 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






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






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






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






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






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






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






15. 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






16. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.






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






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






19. 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






20. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






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






22. 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






23. fast - with little fidelity - examines header information and limited payload data






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






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






26. packet filter firewalls rely on TCP flags to determine connection state. Attacker can send ACK packets only to bypass firewall.






27. 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






28. 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






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






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






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






32. Most common approach - firewall - VPN - intrusion detection - AV - disk encryption - all parts of the organization receive equal protection - particularly vulnerable to malicious inside attacks






33. Used for connecting two physical segments of a network - segments traffic - breaks up collision domains - not generally used because of switches






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






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






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






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






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






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






41. Confidentiality - integrity - availability






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






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






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






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






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






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






48. Unencrypted message in its original form






49. CIDR is a shorthand way of specifying which portion of the address is the network - and which portion is the host






50. Anonymous FTP - FTP passes through clear text - Bounce attacks with the PORT command - user can cause an FTP to open a connection from the FTP's own commands and bypass a firewall







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