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. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






3. 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






4. Considered to be a perimeter device






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






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






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






8. Network scanner.






9. 53 bytes - 48 bytes for data - 5 bytes for the header






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






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






12. Confidentiality - symmetric encryption






13. Stateful firewalls maintain state of traffic flows






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






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






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






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






18. 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






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






20. 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






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






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






23. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






24. Uses a 1 to 1 substitution of characters - rotate the alphabet by 'n' number of characters - rot+X means rotate the letters X characters






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






26. Intellectual property - business goals - validated data - historical






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






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






29. 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






30. 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.






31. 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






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






33. 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






34. 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






35. Uniform protection - protected enclaves - information centric - threat vector analysis






36. flags anomalous conditions in traffic on the network - requires understanding on what is normal - bases good traffic as a baseline






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






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






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






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






41. 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






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






43. 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






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






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






46. 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






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






48. One is for talking - one is for implementing






49. Known - unknown - zero day






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