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. 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






2. 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






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






4. 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






5. 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






6. -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






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






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






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






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






11. packet filter firewalls rely on TCP flags to determine connection state. Attacker can send ACK packets only to bypass firewall.






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






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






14. 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






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






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






17. Confidentiality - integrity - availability






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






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






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






21. Uses a 1 to 1 substitution of characters - rotate the alphabet by 'n' number of characters - rot+X means rotate the letters X characters






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






23. Syn - Syn/Ack - Ack






24. Network traffic to the host - typically listens on all interface - uses signature analysis to identify events of interest






25. 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.






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






27. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






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






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






31. 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






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






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






34. Unencrypted message in its original form






35. 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






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






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






39. 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






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






41. 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






42. Confidentiality - symmetric encryption






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






44. open source tool for monitoring - can be used as a NIDS - has quick updates and flexibility for custom rules






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






46. 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






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






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






49. local area network - small network confined to small location - all equipment owned by a single entity - vulnerable to inside threats and logic bombs






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







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