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






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






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






5. 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.






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






7. Uses a 1 to 1 substitution of characters - rotate the alphabet by 'n' number of characters - rot+X means rotate the letters X characters






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






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






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






11. 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






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






13. 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






14. Small program triggered by an event that provides an action. E.g. scheduled file removal if countdown isn't reset - ie: employee was fired






15. Prepends to the beginning of the file and gains control when the first instruction of the infected COM file is executed - appending to the end - virus writes its payload to the end and inserts jump instruction as the first instruction - which execute






16. Means multiple iterations won't matter. If you encrypt with a key - then re-encrypt - it's the same as using one key.






17. Confidentiality - integrity - availability






18. True positive - false positive - true negative - false negative






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






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






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






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






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






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






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. 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 it's corresponding IP address






28. 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






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






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






31. 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






32. -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






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






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






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






36. Hash Authentication - asymmetric - non repudiation - digital signature - hash + asymmetry






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






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






39. 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






40. 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






41. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






42. An attacker spoofs the victim's IP and sends an ICMP ECHO request to the broadcast address of a network. When every system responds - a DoS occurs.






43. Syn - Syn/Ack - Ack






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






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






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






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






48. 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






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






50. 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