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






2. 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






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






4. Attaches itself to existing program files and activated when the exe is launched






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






6. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






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






8. True positive - false positive - true negative - false negative






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






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






11. Strips OS commands and characters from input - avoid making system calls from within the app * especially based on user input






12. 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






13. Unencrypted message in its original form






14. 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.






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






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






17. 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






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






19. Confidentiality - integrity - availability






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






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






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






23. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






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






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






26. 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






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






28. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






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






31. Attacks systems through known vulnerabilities - automatically scans for more systems to attack - lowers system defenses - installs rootkit or root shell - opens up back doors - self contained malware that can copy itself






32. 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






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






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






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






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






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






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






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






40. 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






41. Known - unknown - zero day






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






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






44. 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






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






46. An FTP that allows downloads only if the user knows the exact name of the file they're looking for






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






48. Threat requires a vector to cross the vulnerability - stop the ability of the threat to use the vector






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






50. Message in its encrypted form