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. 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






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






3. Common backdoor to open a port - port scan scans for open ports on remote host - scans 0 - 65 -535 twice. TCP and UDP






4. Stateful firewalls maintain state of traffic flows






5. 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






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






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






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






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






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






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






12. A hash is produced when applied to a monitored file. The hash always generates the same value unless a change was made. HIDS software checks the hashes of monitored files and if a change is found - analyst is notified. - ie: tripwire






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






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






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






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






17. 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






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






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






20. logic bomb - trojan horse - trap door






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






22. 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






23. FIN 130 - ACK 131 - FIN 570 - ACK 571






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






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






26. Trivial File Transfer Protocol - method to transfer files from one device to another without needing authentication






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






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






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






30. Confidentiality - integrity - availability






31. Confidentiality - integrity - availability






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






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






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






35. 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






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






38. 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






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






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






41. Slow - requires stateful data tracking - inspects all fields - including variable-length fields






42. free windows based wireless scanner for 802.1b - detects access point settings - supports GSP integration - identifies networks as encrypted or unencrypted






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






44. Known - unknown - zero day






45. ATM supports two types of virtual circuits: permanent virtual circuits and switches virtual circuit - PVC is set up in advance - usually manually - SVC is established automatically through a signaling protocol and can be created on the fly - establis






46. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






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






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






49. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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