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






2. Network scanner.






3. Known - unknown - zero day






4. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






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






7. Confidentiality - integrity - availability






8. Hash Authentication - asymmetric - non repudiation - digital signature - hash + asymmetry






9. The practice of sending an ACK inside another packet going to the same destination






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






11. A low end firewall that can quickly be deployed using existing hardware. They examine packets themselves with no content.






12. Confidentiality - integrity - availability






13. 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






14. Relies on executable code insertion and user interaction to spread






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






16. Combines the functionality of a hub and bride into a single device - keeps track of MACs attached to each port






17. 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






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






19. 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






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






21. One is for talking - one is for implementing






22. 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 its corresponding IP address






23. Going around with equipment to detect wireless networks






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






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






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






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






28. Intellectual property - business goals - validated data - historical






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






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






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






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






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






34. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






35. OSI






36. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






37. 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






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






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






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






41. 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






42. Confidentiality - symmetric encryption






43. 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.






44. 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






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






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






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






48. 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






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






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