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. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






2. Metropolitan area network - spans across city or town - larger than a LAN - uses fiber for backbone






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






4. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






5. A sends a SYN packet to B - B acknowledges with a SYN/ACK - A replies with ACK






6. 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






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






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






9. Maintains complete TCP connection state and sequencing through 2 connections - address translation built-in by virtue of second connection above






10. removable media - email attachments - web browsing - social networking - network vulnerabilities - IM applications - p2p






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






12. Going around with equipment to detect wireless networks






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






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






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






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






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






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






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






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






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






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






23. Weakness in a system - inherent in a complex system - majority are due to poor coding - gateway by which threats are manifested






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






25. Provides insight into the tactics - motives - and attacker tools






26. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






28. free windows based wireless scanner for 802.1b - detects access point settings - supports GSP integration - identifies networks as encrypted or unencrypted






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






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






31. Considered to be a perimeter device






32. 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






33. Message in its encrypted form






34. 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.






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






36. Known - unknown - zero day






37. A TCP version of ping - sends custom TCP packets to a host and listens for replies - enables port scanning and spoofing simultaneously






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






39. Network scanner.






40. 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






41. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






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






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






44. Allows segmentation of a switch into different networks - regardless of where a system is plugged in - creates separate networks through software not hardware

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45. Attempt to manipulate or trick a person into providing information or access - bypass network security by exploiting humans - vector is often outside attack by telephone or visitor inside






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






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