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. Network scanner.






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






3. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






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






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






7. 53 bytes - 48 bytes for data - 5 bytes for the header






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






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






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






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






12. Outside attack from network - Outsider attack from telephone - Insider attack from local network - insider attack from local system - attack from malicious code






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






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






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






16. 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






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






18. Infects the EXE and make them operate slightly different - when infected - exe header sizes are altered to point to the appended viral code






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






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






21. 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






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






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






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






25. Unencrypted message in its original form






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






27. Program disguised as something helpful - only to perform actions the user did not intend. Opening ports - installing other programs - etc.






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






29. Confidentiality - symmetric encryption






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






31. rules indicate criteria in packets that represent events of interest - rules are applied to packets as they are received - alerts are created when matches are found






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






33. 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






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






36. 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






37. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






38. Syn - Syn/Ack - Ack






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






40. Personal area network - phone tethering - bluetooth - etc






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






42. 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






43. logic bomb - trojan horse - trap door






44. 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






45. Stateful firewalls maintain state of traffic flows






46. ATM supports two types of virtual circuits: permanent virtual circuits and switches virtual circuit - PVC is set up in advance - usually manually - SVC is established automatically through a signaling protocol and can be created on the fly - establis






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






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






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






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