Test your basic knowledge |

CISSP Telecom And Network Security

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. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.






2. Type of topology that uses a bus that does not have a one linear cable - but instead uses branches of cables. Commonly used in Ethernet.






3. Type of network layout that is a large geographical region connecting more that one LAN.






4. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.






5. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'






6. Type of network device that is the simplest type of connectivity because it only repeats and amplifies electric signals between cable segments. Works at the physical layer.






7. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.






8. Type of topology that Uses linear single cable for all computers attached. All traffic travels full cable and can be viewed by all other computers.






9. Identifys a WLAN. Can be used to segment environments into different WLANS.






10. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections






11. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.






12. A simplified version of X.25 - without the error checking that was done on the network. It handles error checking at the end node - which helps improve speed dramatically.






13. Communication devices that are not synchronized - meaning all devices can send data at will - send a sequence of bits framed with a start and stop bit.






14. This network technology determines which system will send data based on which one has the token.






15. Problems: Central device is a single point of failure.






16. Type of firewall that looks at header information to make decisions on whether a packet is deemed acceptable. This type does not look as deep within the packet as an application level proxy - runs at the session layer.






17. Protocol that transfers data in fixed cells (53 bytes) - is a WAN technology - and transmits data at very high rates. Supports voice - data - and video applications.






18. In the OSI layer 5 - these are the types of what?






19. Wireless communication that splits total amount of bandwidth into smaller sub-channels. Send and receiver work in one of the channels for a period of time - and then move into a different channel. It uses a portion of the bandwidth - throughput of 1-






20. Security wireless standard that enables data transfers to be encrypted. Static encryption keys among clients - short 40 bit keys - RC4 encryption - ineffective use of 24 bit IV's - and no packet integrity.






21. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.






22. VPN protocol that works at the network layer - handles multiple connections - provides secure authentication and encryption. Tunnel mode option (payload and header encrypted) - or transport mode (only payload is encrypted).






23. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.






24. Both directions - only one application can send information at a time






25. VPN protocol that works at the data link layer - can only run in IP networks - and provides encryption and encapsulation. This is Microsoft's VPN solution.






26. Transmits high speed bandwidth over phone lines. Provides data rates up to 52 Mpbs using line of 1000 feet or less. Must be within 2.5 miles of a central office.






27. Communication process that must deliver data with set time constraints. Applications are typically video related where audio and must match perfectly. VoIP is another example.






28. Type of network layout that separates and group computers logically.






29. Proprietary protocol that enables secondary devices to communicate with primary stations or mainframes in an IBM architecture. Developed in the mid-70's for use in a systems network architecture (SNA) environment. First synchronous - link layer - bit






30. OSI layer 2 Sub-layers. The first provides a standard interface for the network protocol being used. The second provides a standard interface for the physical layer protocol being used.






31. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.






32. Type of authentication protocol that provides a framework to enable may types of authentication techniques to be used during PPP connections. It extends the possibilities to one-time passwords - token cards - biometrics - Kerberos - and digital certi






33. Dynamically builds ACL's to allow internal systems to communicate with external systems. Once the connection is finished - the ACL is removed from the list. 4th generation firewall.






34. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.






35. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.






36. As they travel down the OSI model on the source computer - each layer adds its own information so the corresponding layer on the destination machine knows how to process the data.






37. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.






38. In a token ring network - each computer is connected to this - which acts as a central hub.






39. Wireless communication that distributes individual signals across the allocated frequencies.






40. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.






41. Type of firewall that uses a proxy for each service and can understand and make decisions on the protocols used and the commands within those protocols - runs at the application layer.






42. Type of network device that divides networks into more controllable segments to ensure more efficient use of bandwidth. Works at the data link layer and understands MAC addresses - not IP addresses.






43. Network segment name for a DMZ created by two physical firewalls.






44. This is a standard for fiber-optic cabling and uses self-healing network rings. This standard describes the interfaces that can be used over fiber lines and the signaling that can be employed. Works at the physical layer of the OSI model.






45. Device used within companies to provide multiple services to users throughout a building or facility. Example - dialing 9 to place outbound phone calls. Security concerns: default configurations and passwords - maintenance modems disabled - unused co






46. Most expensive type of WAN connection because the fee is based on distance between the two points rather than the amount of bandwidth used. Examples - T1 and T3.






47. SMTP server that is configured for sending email from any source to and destination.






48. Type of firewall that lies between the perimeter router and and LAN.






49. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.






50. Type of network device that links 2 or more network segments - where each segment can function as an independent network. Works at the network layer - works with IP addresses - and has more network knowledge than the other hardware.