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






3. It interacts with data and prepares it to be transmitted across the network. It ensures reliable connectivity from end-to-end






4. A cracking tool inserted into the OS that allows the attacker to do as they please.






5. 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.






6. Network traffic to the host - typically listens on all interface - uses signature analysis to identify events of interest






7. Stateful firewalls maintain state of traffic flows






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






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






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






11. 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






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






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






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






15. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






16. 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






17. 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






18. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






19. Infects the EXE and make them operate slightly different - when infected - exe header sizes are altered to point to the appended viral code






20. logic bomb - trojan horse - trap door






21. Four layers - Network Layer - Internet Layer - Transport Layer - Application layer






22. Confidentiality - symmetric encryption






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






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






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






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






27. 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






28. Poor programming without error checking can allow commands to be run in an input field. This can point to a command further in the buffer that will execute the attacker's payload.






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






30. 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






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






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






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






34. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






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






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






38. 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






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






40. Message in its encrypted form






41. Work groups that require additional protection are segmented from the rest of the internal organization - restricting access to critical segments - system of VPNs - internal firewall - VLANs and ACLs






42. Going around with equipment to detect wireless networks






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






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






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






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






47. flags anomalous conditions in traffic on the network - requires understanding on what is normal - bases good traffic as a baseline






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






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






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