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. Considered to be a perimeter device






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






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






4. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






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






6. Unified data carrying service - replacing from replay and ATM






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






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






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






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






11. Simplest form of a research honeypot - useful in identifying nature of TCP scans - allows attacker to complete 3-way handshake - listens on a defined port - logs incoming requests for analysis






12. 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.






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






14. 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






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






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






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






18. Used by IDS for a baseline before analysis - attackers will try to de-normalize traffic to evade detection - IDS will normalize data for understood protocols






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






20. 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.






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






22. 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






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






24. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






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






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






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






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






30. 1 and 2 - Voice/Low speed data - 3 - Voice/Data 10Mb - 4 - Voice/Data 16Mb - 5 - 5e - Voice/Data 100Mb to 1Gb - 6 - Standard for gigabit






31. 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






32. Going around with equipment to detect wireless networks






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






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






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






36. Full open - half open (stealth scan) - UDP - Ping






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






38. 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






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






40. A spoofed IP is used to send a SYN to the target. It then responds with a SYN/ACK that never receives the final ACK to complete the handshake. This occupies a portion of the target's pre-established buffer for TCP and can prevent the target from acce






41. 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






42. 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






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






44. 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






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. Infects MBR - no network spreading potential






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






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






49. 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






50. logic bomb - trojan horse - trap door







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