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






2. Good for multimedia - can use small single packets - multicasting is required - speed is the highest priority






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






4. A cracking tool inserted into the OS that allows the attacker to do as they please.






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






6. 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






7. 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






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






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






10. 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






11. OSI






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






13. 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






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






15. 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






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






17. 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.






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






19. Message in its encrypted form






20. 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






21. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






22. Poor programming without error checking can allow commands to be run in an input field. This can point to a command further in the buffer that will execute the attacker's payload.






23. 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






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






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






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






27. Infected millions through various methods - vulnerability in the MS Server Service - brute force admin password through network shares - infect removable devices with a malicious autorun script






28. Small program triggered by an event that provides an action. E.g. scheduled file removal if countdown isn't reset - ie: employee was fired






29. 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






30. Physical layer - Data link layer - Network Layer - Transport Layer - Session Layer - Presentation Layer - Application Layer






31. 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






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






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






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






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






36. 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






37. Provides insight into the tactics - motives - and attacker tools






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






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






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






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






42. One is for talking - one is for implementing






43. 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






44. -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






45. 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






46. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






47. Syn - Syn/Ack - Ack






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






49. Going around with equipment to detect wireless networks






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