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






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






4. Network traffic to the host - typically listens on all interface - uses signature analysis to identify events of interest






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






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






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






8. Stateful firewalls maintain state of traffic flows






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






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






11. 53 bytes - 48 bytes for data - 5 bytes for the header






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






13. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






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






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






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






18. 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






19. destruction of data - leaking confidential information - providing backdoor access






20. One is for talking - one is for implementing






21. 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






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






23. Known - unknown - zero day






24. Confidentiality - symmetric encryption






25. 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






26. Multiple levels of protection must be deployed - an exercie in detection - measures must be across a wide range of controls - compromises happen when people leave sites - risk - CIA triad - strategies






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






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






29. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






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






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






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






34. 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






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






37. 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






38. 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.






39. -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






40. Unencrypted message in its original form






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






42. An attacker recruits zombie systems ahead of time to simultaneously release a flood of traffic at a specific target.






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






44. Message in its encrypted form






45. Strips OS commands and characters from input - avoid making system calls from within the app * especially based on user input






46. Confidentiality - integrity - availability






47. 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






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






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






50. Unified data carrying service - replacing from replay and ATM