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. Relies on executable code insertion and user interaction to spread






2. Known - unknown - zero day






3. keeps the same letters - but changes the position within the text - easy to break - can be combined with substitution






4. 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






5. Confidentiality - integrity - availability






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






7. Considered to be a perimeter device






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






9. Syn - Syn/Ack - Ack






10. Most commonly used transport protocol today - ensures reliable packet delivery - has error handling built in






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






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






13. 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.






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






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






16. 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






17. 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






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






19. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






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






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






22. 53 bytes - 48 bytes for data - 5 bytes for the header






23. A low end firewall that can quickly be deployed using existing hardware. They examine packets themselves with no content.






24. 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






25. 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






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






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






28. Threat requires a vector to cross the vulnerability - stop the ability of the threat to use the vector






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






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






31. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






32. -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






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






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






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






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






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






38. 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






39. Connection oriented - before systems can communicate over an ATM network - they must establish a virtual circuit between each other - this can span across multiple ATM switches that also handle communications for other systems - at the end of the con






40. OSI






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






42. Message in its encrypted form






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






44. 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






45. 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






46. 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






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






48. True positive - false positive - true negative - false negative






49. 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 its corresponding IP address






50. 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