Test your basic knowledge |

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






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






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






4. Known - unknown - zero day






5. Wide Area Network - Larger than MAN or LAN - uses public network - phone lines - and leased lines to tie LAN and MAN over a dispersed area






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






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






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






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






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






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






12. 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






13. 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






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






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






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






17. OSI






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






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






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






21. 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






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






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






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






25. 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






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






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






28. A hash is produced when applied to a monitored file. The hash always generates the same value unless a change was made. HIDS software checks the hashes of monitored files and if a change is found - analyst is notified. - ie: tripwire






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






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






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






32. 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






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






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






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






36. 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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37. Infects MBR - no network spreading potential






38. 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






39. Message in its encrypted form






40. 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






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






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






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






44. Confidentiality - integrity - availability






45. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






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






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






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






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






50. Syn - Syn/Ack - Ack