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






2. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






3. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






4. 53 bytes - 48 bytes for data - 5 bytes for the header






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






6. Confidentiality - integrity - availability






7. 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






8. 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






9. Handles transmissions across the physical media like wires - fiber - etc






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






11. 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






12. Work groups that require additional protection are segmented from the rest of the internal organization - restricting access to critical segments - system of VPNs - internal firewall - VLANs and ACLs






13. 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






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






15. Trivial File Transfer Protocol - method to transfer files from one device to another without needing authentication






16. 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






17. True positive - false positive - true negative - false negative






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






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






20. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability






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






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






23. 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






24. 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.






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






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






27. Unencrypted message in its original form






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






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






30. fast - with little fidelity - examines header information and limited payload data






31. Uses inclusive or exclusive lists - inclusive analysis utilizes a list of keywords - exclusive analysis utilizes a list of events that can be ignored






32. Multiple levels of protection must be deployed - an exercie in detection - measures must be across a wide range of controls - compromises happen when people leave sites - risk - CIA triad - strategies






33. 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






34. Means multiple iterations won't matter. If you encrypt with a key - then re-encrypt - it's the same as using one key.






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






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






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






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






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






40. 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






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






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






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






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






45. Confidentiality - integrity - availability






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






47. Network scanner.






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






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






50. 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