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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 is best-effort - connectionless - and does not sent acknowledgements.






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






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






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






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






6. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.






7. Type of LAN and MAN technology - usually used for backbones - that uses token-passing technology and has redundant rings in case the primary ring goes down.






8. VPN protocol that can run in other networks (frame relay - X.25 - ATM). Does not provide encryption - lacks the security to be called a true "VPN" solution.






9. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.






10. Type of cable that carries data as light waves - expensive - can transmit data at high speeds - difficult to tap into - and is resistant to EMI. Most secure cabling option - but vulnerable to dispersion.






11. 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.






12. 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.






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






14. Wireless communication that applies sub-bits to a message (chips) and the receiver uses the chips to re-assemble the message based on the chipping code. It uses all available bandwidth - high throughput of 11Mbps.






15. Strengths of a type of firewall: Better security than packet filtering. Looks at all info in the packet - up to the application layer. Breaks the connection between trusted and untrusted systems. Weaknesses include limited number of applications supp






16. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.






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






18. 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






19. OSI layer that provides physical connections for transmission and performs the electrical encoding of data. This layer transforms bits to electrical signals. Protocols at this level HSSI (High Speed Serial Interface) - X.21 - EIA/TIA 232 and 449.






20. Protocol that translates IP address into a MAC address (physical Ethernet address)






21. 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






22. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.






23. 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.






24. New variant to traditional email spam on VoIP networks.






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






26. Type of firewall that is also know as a screening router and is accomplished by ACL's (Lines of text called rules). Traffic can be filtered by address - ports - and protocol types. 1st generation firewall - runs at the network layer.






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






28. 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.






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






30. 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.






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






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






33. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.






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






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






36. Most commonly used LAN implementation today. Considered a "chatty" protocol because it allows all systems to hear each other's broadcasts. Has many collisions because all systems share the same medium. Can operate at 10 to 1000 Mbps.






37. Protocol for allowing multi-cast (one to many) communication






38. Type of firewall that keeps track of each communication session. It must maintain a state table that contains data about each connection. 3rd generation firewall - runs at the network layer.






39. 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.






40. Type of network device that allows different network segments and/or systems to communicate. When communication takes place - a dedicated connection is set up - so collision and broadcast data is not available to other devices. Combined repeater (hub






41. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.






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






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






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






45. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.






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






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






48. Uses tunneling protocols and encryption to provide a secure network connection between two network hosts. Private and secure connections can be made across an unsecured network. Example protocols are PPTP - L2TP - and IPSec.






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






50. Wireless standard that will improve security of wireless communication