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






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






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






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






6. An attacker spoofs the victim's IP and sends an ICMP ECHO request to the broadcast address of a network. When every system responds - a DoS occurs.






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






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






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






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






11. War dialing - war driving - Sniffing - eavesdropping - dumpster diving - social engineering






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. free windows based wireless scanner for 802.1b - detects access point settings - supports GSP integration - identifies networks as encrypted or unencrypted






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






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






17. 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






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






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






20. 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






21. 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






22. 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






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






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






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






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






27. Syn - Syn/Ack - Ack






28. OSI






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






30. -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






31. 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






32. 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






33. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






34. Going around with equipment to detect wireless networks






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






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






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






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






39. 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.






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






41. removable media - email attachments - web browsing - social networking - network vulnerabilities - IM applications - p2p






42. Infects MBR - no network spreading potential






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






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






45. Connects many WANs - MANs - and LANs - provided via ISP






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






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






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






49. Known - unknown - zero day






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