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. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






3. 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






4. low interaction production honeypot - network daemon that can simulate other hosts - each host can appear as a different OS






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






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






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






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






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






10. Program disguised as something helpful - only to perform actions the user did not intend. Opening ports - installing other programs - etc.






11. Migrate to WPA2 - use strong authentication like PEAP or TTLS - audit network installations - require mutual auth between client and infrastructure equipment






12. Trying to ID modems in a telephone exchange that may be susceptible to compromise






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






14. 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






15. 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.






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






17. A hash is produced when applied to a monitored file. The hash always generates the same value unless a change was made. HIDS software checks the hashes of monitored files and if a change is found - analyst is notified. - ie: tripwire






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






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






20. 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






21. CIDR is a shorthand way of specifying which portion of the address is the network - and which portion is the host






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






23. 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






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






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






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






27. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






28. Application layer attacks may get through - dialup - VPN - extranet connections may bypass firewalls






29. 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






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






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






32. 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






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






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






35. 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






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






37. UDP based infection - infected through vulnerability in SQL server - caused DoS on saturated networks






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






39. 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






40. 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






41. 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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42. 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






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






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






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






46. A list of files is defined that should be monitored for a change - HIDS software calculates a one-way hash for each file - if a change is made to the file - the hash is changed






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






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






49. -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






50. It allows the transport layer to detect when the UDP headers or the payload have been modified in transit







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