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. Worms and Wireless - modems - tunnel anything through HTTP - social engineering






2. Unencrypted message in its original form






3. Trying to ID modems in a telephone exchange that may be susceptible to compromise






4. It allows the transport layer to detect when the UDP headers or the payload have been modified in transit






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






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






7. Confidentiality - integrity - availability






8. 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.






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






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






11. 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.






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






13. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






15. 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






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






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






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






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






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






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






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






23. Confidentiality - symmetric encryption






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






25. 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






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






27. 1. physical 2. data 3. network 4. transport 5. session 6. presentation 7. application






28. Confidentiality - integrity - availability






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






30. 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






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






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






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






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






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






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






38. A time of check/time of use attack that exploits the difference in between when a security control was applied and the time the service was used.






39. 53 bytes - 48 bytes for data - 5 bytes for the header






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






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






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






43. 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






44. 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






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






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






47. 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






48. Network scanner.






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






50. Allows admins to remotely access a system for troubleshooting. - E.g VNC - GoToMyPc - PC Anywhere







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