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






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






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






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






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






6. Intrusion detection system - it reports attacks against monitored systems/networks






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






8. 1. physical 2. data 3. network 4. transport 5. session 6. presentation 7. application






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






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






11. 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






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






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






14. Going around with equipment to detect wireless networks






15. Considered to be a perimeter device






16. 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






17. Stateful firewalls maintain state of traffic flows






18. Infects MBR - no network spreading potential






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






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






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






22. logic bomb - trojan horse - trap door






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






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






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






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






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






28. When someone has compromised the integrity of data or a program. Allows attackers to create backdoors.






29. 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






30. Unified data carrying service - replacing from replay and ATM






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






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






33. 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






34. 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.






35. 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






36. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






37. Netmasks or subnets provide a method for identifying what portion of an address is the network - and what portion is the host






38. 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






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






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






41. 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






42. 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.






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






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






45. Network scanner.






46. Most common approach - firewall - VPN - intrusion detection - AV - disk encryption - all parts of the organization receive equal protection - particularly vulnerable to malicious inside attacks






47. 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






48. 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






49. Slow - requires stateful data tracking - inspects all fields - including variable-length fields






50. A TCP version of ping - sends custom TCP packets to a host and listens for replies - enables port scanning and spoofing simultaneously