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. Message in its encrypted form






2. Uses a 1 to 1 substitution of characters - rotate the alphabet by 'n' number of characters - rot+X means rotate the letters X characters






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






4. Anonymous FTP - FTP passes through clear text - Bounce attacks with the PORT command - user can cause an FTP to open a connection from the FTP's own commands and bypass a firewall






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






6. 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






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






8. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






9. Identify critical assets and provide layered protection - data is accessed by applications - applications reside on hosts - hosts operate on networks






10. 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






11. Infects MBR - no network spreading potential






12. logic bomb - trojan horse - trap door






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






14. Free linux WLAN analysis tool - completely passive - cannot be detected - supports advanced GPS integration and mapping features - used for wardriving - WLAN vulerability assessment






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






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






17. 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






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






19. Worms and Wireless - modems - tunnel anything through HTTP - social engineering






20. Considered to be a perimeter device






21. 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






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






23. Used for connecting two physical segments of a network - segments traffic - breaks up collision domains - not generally used because of switches






24. Confidentiality - integrity - availability






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






26. Confidentiality - symmetric encryption






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






28. 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.






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






30. One is for talking - one is for implementing






31. 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






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






33. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.






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






35. Switches along the path can be requested to allocate the desired amount of bandwidth. If the circuit has the required bandwidth - the circuit is set up.






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






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






38. 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






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






40. Network scanner.






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






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






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






44. -Malicious code might execute destructive overwrite to hard disks -Malicious mas mailing code might expose sensitive information to the internet - web server compromise might expose organization to ridicule - Web server compromise might expose custom






45. 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






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






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






48. Unencrypted message in its original form






49. 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






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