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






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






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. 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






6. Known - unknown - zero day






7. Infects MBR - no network spreading potential






8. logic bomb - trojan horse - trap door






9. 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






10. Allows admins to remotely access a system for troubleshooting. - E.g VNC - GoToMyPc - PC Anywhere






11. Confidentiality - integrity - availability






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






13. 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






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






15. 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






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






17. risk = threat x vulnerability - impossible to eliminate - security is an exercise in loss reduction






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






19. 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






20. 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






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






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






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






24. 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






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






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






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






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






29. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






31. 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






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






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






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






35. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






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






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






38. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






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






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






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






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






44. 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






45. 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






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






47. 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






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






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






50. Switches along the path can be requested to allocate the desired amount of bandwidth. If the circuit has the required bandwidth - the circuit is set up.