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






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






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






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






5. 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






6. Message in its encrypted form






7. 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






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






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






10. Unencrypted message in its original form






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






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






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






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






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






16. Network traffic to the host - typically listens on all interface - uses signature analysis to identify events of interest






17. Resource exhaustion like DDoS or fork attack - unexpected input value the machine does not know how to process






18. 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






19. Considered to be a perimeter device






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






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






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






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






24. 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






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






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






27. Infects MBR - no network spreading potential






28. removable media - email attachments - web browsing - social networking - network vulnerabilities - IM applications - p2p






29. Syn - Syn/Ack - Ack






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






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






32. 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






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






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






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






36. 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






37. 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






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






39. Going around with equipment to detect wireless networks






40. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






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






42. 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






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






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






45. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






47. It interacts with data and prepares it to be transmitted across the network. It ensures reliable connectivity from end-to-end






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






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






50. 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







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