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






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






4. Application layer attacks may get through - dialup - VPN - extranet connections may bypass firewalls






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






6. 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.






7. Take the file and try to compress it. If it compresses - it means there is a pattern and it's more easily crackable

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8. 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






9. Malware - insider threat - natural disaster - terrorism - pandemic






10. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






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






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






14. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






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






16. Confidentiality - symmetric encryption






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






18. Prepends to the beginning of the file and gains control when the first instruction of the infected COM file is executed - appending to the end - virus writes its payload to the end and inserts jump instruction as the first instruction - which execute






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






20. Known - unknown - zero day






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






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






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. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.






25. OSI






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






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






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






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






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






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






32. Network scanner.






33. 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






34. 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






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






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






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






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






39. Switches networks make it difficult to monitor traffic in promiscuous mode - topology must be able to support traffic aggregation for monitoring






40. Confidentiality - integrity - availability






41. A spoofed IP is used to send a SYN to the target. It then responds with a SYN/ACK that never receives the final ACK to complete the handshake. This occupies a portion of the target's pre-established buffer for TCP and can prevent the target from acce






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






43. 53 bytes - 48 bytes for data - 5 bytes for the header






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






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






46. 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






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






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






49. Allows segmentation of a switch into different networks - regardless of where a system is plugged in - creates separate networks through software not hardware

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







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