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






2. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS






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






4. OSI layer that formats data into a standardized format and deals with the syntax of data - not the meaning. Example formats are ASCII - GIF - JPG - MPEG.






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 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.






7. 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.






8. 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.






9. Network where a dedicated virtual link is not set up - and packets can use many different dynamic paths to get to the same destination. This causes variable delays. Examples are frame relay and X.25






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






11. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.






12. Wireless standard that will improve security of wireless communication






13. 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






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






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






16. 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.






17. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.






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






19. 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






20. 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).






21. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.






22. 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.






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






24. Type of firewall that Inspects incoming/outgoing messages for malicious information. If approved - transfers an isolated copy from one network to another. 2nd generation firewall.






25. Malware attack that sends commands inside of an ICMP packet.






26. Developed to replace the aging telephone and analog systems. BRI rate that uses two B channels (send/receive) - and one D channel (control information) - and PRI rate that uses up to 23 B channels. Supports voice - data - and video. Provides up to 1.






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






28. OSI layer that sets up - maintains - and breaks down the dialog (session) between two applications. Controls dialog organization and synchronization. Protocols that work at this layer are NFS (Network File System) - SQL - NetBIOS - RPC.






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






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






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






32. 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.






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






34. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.






35. Protocol that translates a MAC address into an IP address.






36. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.






37. 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.






38. Standard that outlines wireless personal area network (WPAN) technologies.






39. Protocol that is best-effort - connectionless - and does not sent acknowledgements.






40. Used when a LAN device needs to communicate with WAN devices over telephone lines. Ensures the necessary electrical signaling and format are used. Interfaces with Data Terminal Equipment (DTE) and Data Circuit-Terminal Equipment (DCE).






41. 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.






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






43. 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.






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






45. 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.






46. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.






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






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






49. 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.






50. Type of wireless authentication where the device does not need to provide a key for authentication. Usually - only the SSID is required and plaintext transmission occurs.