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






2. 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






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






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






5. Simple attack done by simply browsing available information that's allowed on a local network.






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






7. -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






8. 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






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






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






11. 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






12. FIN 130 - ACK 131 - FIN 570 - ACK 571






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






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






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






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






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






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






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






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






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






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






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






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






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






27. 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






28. Considered to be a perimeter device






29. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






30. Relies on executable code insertion and user interaction to spread






31. 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






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






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






34. True positive - false positive - true negative - false negative






35. 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






36. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






37. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






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






39. Going around with equipment to detect wireless networks






40. Confidentiality - integrity - availability






41. One is for talking - one is for implementing






42. 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






43. 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.






44. 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






45. It interacts with the application layer to determine which network services will be required






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






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






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






49. A sends a SYN packet to B - B acknowledges with a SYN/ACK - A replies with ACK






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