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






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






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






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






6. Parasitic malware - boot record infector - macro - COM/Script program infector - EXE program infector






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






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






9. Considered to be a perimeter device






10. -Malicious code might execute destructive overwrite to hard disks -Malicious mas mailing code might expose sensitive information to the internet - web server compromise might expose organization to ridicule - Web server compromise might expose custom






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






12. risk = threat x vulnerability - impossible to eliminate - security is an exercise in loss reduction






13. Message in its encrypted form






14. 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






15. 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






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






17. logic bomb - trojan horse - trap door






18. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






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






21. size is whatever the length of the UDP portion of the packet. Could be as large as 65 -535






22. Going around with equipment to detect wireless networks






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






24. Confidentiality - symmetric encryption






25. True positive - false positive - true negative - false negative






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






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






28. 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.






29. One is for talking - one is for implementing






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






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






32. OSI






33. 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






34. 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.






35. 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






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






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






38. Wide Area Network - Larger than MAN or LAN - uses public network - phone lines - and leased lines to tie LAN and MAN over a dispersed area






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






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






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






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






43. 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






44. Work groups that require additional protection are segmented from the rest of the internal organization - restricting access to critical segments - system of VPNs - internal firewall - VLANs and ACLs






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






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






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






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






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






50. 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