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






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






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. 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






5. local area network - small network confined to small location - all equipment owned by a single entity - vulnerable to inside threats and logic bombs






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






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






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






9. True positive - false positive - true negative - false negative






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






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






12. 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






13. Network scanner.






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






15. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






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






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






19. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






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






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






23. Confidentiality - integrity - availability






24. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






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






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






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






29. deployment challenges including topology and access limitations - analyzing encrypted traffic - quantity vs. quality of signatures - performance limitations with extensive analysis techniques - very costly for proper management






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






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






32. Allows segmentation of a switch into different networks - regardless of where a system is plugged in - creates separate networks through software not hardware

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33. One is for talking - one is for implementing






34. Stateful firewalls maintain state of traffic flows






35. A TCP version of ping - sends custom TCP packets to a host and listens for replies - enables port scanning and spoofing simultaneously






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






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






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






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






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. 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






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






43. Considered to be a perimeter device






44. 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






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






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






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






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






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






50. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS