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






2. Known - unknown - zero day






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






4. 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






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






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






7. One is for talking - one is for implementing






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






9. 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






10. 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






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






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






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






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






15. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






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






17. Protects internal/external systems from attack - filters communications based on content - performs NAT - encrypts communications for VPN - logging to aid in intrusion detection






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






19. 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






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






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






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






23. 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.






24. packet filter firewalls rely on TCP flags to determine connection state. Attacker can send ACK packets only to bypass firewall.






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






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






27. 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






28. Confidentiality - symmetric encryption






29. 53 bytes - 48 bytes for data - 5 bytes for the header






30. 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






31. Syn - Syn/Ack - Ack






32. 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






33. 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






34. Slow - requires stateful data tracking - inspects all fields - including variable-length fields






35. Handles transmissions across the physical media like wires - fiber - etc






36. 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.






37. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






38. FIN 130 - ACK 131 - FIN 570 - ACK 571






39. 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






40. 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






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






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






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






44. Replicates traffic onto all ports - no traffic monitoring - cannot control which ports should or shouldn't receive frames - forming a large collision domain.






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






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






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






48. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






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






50. Intrusion detection system - it reports attacks against monitored systems/networks