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. Unencrypted message in its original form






2. 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






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






4. 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






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






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






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






8. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






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






11. Message in its encrypted form






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






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






14. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






16. 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






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






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






19. 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.






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






21. 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






22. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






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






24. -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






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






26. True positive - false positive - true negative - false negative






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






28. Most common approach - firewall - VPN - intrusion detection - AV - disk encryption - all parts of the organization receive equal protection - particularly vulnerable to malicious inside attacks






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






30. Four layers - Network Layer - Internet Layer - Transport Layer - Application layer






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






32. 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






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






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






35. Confidentiality - integrity - availability






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






37. An FTP that allows downloads only if the user knows the exact name of the file they're looking for






38. 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






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






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






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. 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






43. A low end firewall that can quickly be deployed using existing hardware. They examine packets themselves with no content.






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






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






46. 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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47. Attempt to manipulate or trick a person into providing information or access - bypass network security by exploiting humans - vector is often outside attack by telephone or visitor inside






48. 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






49. 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






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