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






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






3. Confidentiality - integrity - availability






4. 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.






5. Stateful firewalls maintain state of traffic flows






6. 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






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






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






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






10. Not frequently seen on LANs because of expense - because of its traffic predictability and high bandwidth support - it's good for video streaming - encapsulates common protocols - uses virtual path identifiers to create end to end connectivity - has






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






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






13. 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






14. TCP/IP - the IP protoco - The core routing protocol of the internet - - deals with transmission of packets between end points - defines the addressing scheme for the internet






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






16. 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






17. Message in its encrypted form






18. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






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






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






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






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






24. 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






25. deployment challenges including topology and access limitations - analyzing encrypted traffic - quantity vs. quality of signatures - performance limitations with extensive analysis techniques - very costly for proper management






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






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






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






30. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






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






33. 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.






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






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






36. Provides insight into traffic on the network - help detect problems with network operations - provides auditing for other security measures






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






38. Protected at rest - protected in transit - secure the key






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






40. 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.






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






42. Network scanner.






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






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






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






46. 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






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






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






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






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







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