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. 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






2. 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






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






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






5. Threat requires a vector to cross the vulnerability - stop the ability of the threat to use the vector






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






7. Infects MBR - no network spreading potential






8. 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.






9. 53 bytes - 48 bytes for data - 5 bytes for the header






10. 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






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






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






13. It handles the establishment and maintenance of connections between systems






14. 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.






15. Free linux WLAN analysis tool - completely passive - cannot be detected - supports advanced GPS integration and mapping features - used for wardriving - WLAN vulerability assessment






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






17. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






18. 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






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






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






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






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






23. Anonymous FTP - FTP passes through clear text - Bounce attacks with the PORT command - user can cause an FTP to open a connection from the FTP's own commands and bypass a firewall






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






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






26. Confidentiality - symmetric encryption






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






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






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






30. 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






31. 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






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






33. -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






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






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






36. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






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






40. Considered to be a perimeter device






41. 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






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






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






44. Attaches itself to existing program files and activated when the exe is launched






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






46. 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






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






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






49. 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






50. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0