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. 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






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






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






4. Network scanner.






5. 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






6. It interacts with the application layer to determine which network services will be required






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






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






9. 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






10. 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






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






12. 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






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






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






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






16. 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






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






18. Confidentiality - integrity - availability






19. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






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






22. 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






23. 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






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






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






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






28. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






29. NTP - BootP/DHCP - NFS file systems - SNMP - TFTP






30. 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






31. 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.






32. 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






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






34. 53 bytes - 48 bytes for data - 5 bytes for the header






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






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






37. 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






38. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






39. 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






40. Message in its encrypted form






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






42. 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






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






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






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






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






47. Known - unknown - zero day






48. Parasitic malware - boot record infector - macro - COM/Script program infector - EXE program infector






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






50. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum