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. Connects many WANs - MANs - and LANs - provided via ISP






2. It handles the establishment and maintenance of connections between systems






3. True positive - false positive - true negative - false negative






4. Confidentiality - integrity - availability






5. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






6. Going around with equipment to detect wireless networks






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






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






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






10. Unencrypted message in its original form






11. Simplest form of a research honeypot - useful in identifying nature of TCP scans - allows attacker to complete 3-way handshake - listens on a defined port - logs incoming requests for analysis






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






13. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






14. 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






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






16. 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






17. Confidentiality - integrity - availability






18. 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






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






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






21. 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.






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






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






24. 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






25. An agreement on how different computer will work - protocols define the format and order of messages and what to do upon receipt of the messages - basically the rules of the network






26. 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






27. Stateful firewalls maintain state of traffic flows






28. 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






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






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






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






32. 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






33. low interaction production honeypot - network daemon that can simulate other hosts - each host can appear as a different OS






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






35. 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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36. A list of files is defined that should be monitored for a change - HIDS software calculates a one-way hash for each file - if a change is made to the file - the hash is changed






37. Full open - half open (stealth scan) - UDP - Ping






38. 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






39. Not frequently seen on LANs because of expense - because of its traffic predictability and high bandwidth support - it's good for video streaming - encapsulates common protocols - uses virtual path identifiers to create end to end connectivity - has






40. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






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






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






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






45. 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






46. Resource exhaustion like DDoS or fork attack - unexpected input value the machine does not know how to process






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






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






49. 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






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