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






2. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.






3. More complexity and drastically increases the difficultly of access control. Many different devices - services - and users make it difficult to know which entities to trust and to what degree.






4. 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.






5. Wireless standard that will improve security of wireless communication






6. Type of cable where STP and UTP (shielded and unshielded) cables are the most popular - cheapest - and easiest to work with. However - easiest to tap into - have cross talk issues - and are vulnerable to electromagnetic interference (EMI).






7. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.






8. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.






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






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






11. Protocol that works at the network layer and informs hosts - routers - and devices of network or computer problems. It is the major component of the ping utility.






12. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.






13. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.






14. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.






15. Older LAN implementation that uses a token-passing technology. Can send a beacon frame to indicate that a certain computer is failing and its neighbors should reconfigure and work around the detected fault.






16. OSI layer that prepares data for the network medium by framing it into LAN/WAN frames. Defines how the physical layer transmits the network packets. Protocols at this layer ARP (Address Resolution Protocol) - RARP (Reverse Address Resolution Protocol






17. Provides high-speed access - up to 50 Mbps - to the Internet through existing cable coaxial and fiber lines. Major security concern is the fact that neighbors use the same coaxial network and can monitor each others traffic.






18. Firewall that does not require a proxy for each service; does not provide detailed access control; but does provide for a wider range of protocols.






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






20. Protocol where all computers compete for the shard network cable - listen to learn when they can transmit data - susceptible to data collisions. Used by Ethernet.






21. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.






22. Both directions - both applications can send information at a time. Session Layer Communication Modes






23. 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.






24. Protocol based on the SDLC protocol - except it is an open protocol - supports full-duplex connections - and provides a higher throughput. It also provides polling - which enables secondary units to communicate with primary units.






25. Communication devices that determine synchronization scheme before data transmission.






26. 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.






27. 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.






28. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.






29. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.






30. Network where a virtual connection that acts like a dedicated link between two systems is set up. Traffic travels in a predictable and constant manner. Example - telephone.






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






32. 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.






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






34. 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.






35. Set of rules that dictates how computer communicate over networks.






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






37. 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.






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






39. Altering an ARP table so an IP address is mapped to a different MAC address. Results in traffic being routed to an attacker's computer.






40. 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.






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






42. Problems: Requires more expense in cabling and extra effort to track down cable faults.






43. 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-






44. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.






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






46. Type of cabling problem signals from one wire crossing over to another wire.






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






48. 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.






49. Spam over IM






50. Standard that addresses wireless MAN technologies.