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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. 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.






2. 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.






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






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






5. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.






6. 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.






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






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






9. 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.






10. 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.






11. 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.






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






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






15. 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.






16. 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.






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






18. 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.






19. 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.






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






21. 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.






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






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






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






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






26. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.






27. These are used to connect multiple switches for traffic of the same classification. Example - two voice switches at a local phone company's central office.






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






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






30. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.






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






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






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






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






35. 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.






36. 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.






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






38. 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






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






40. 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.






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






42. A packet switching technology that is used by telecommunication services for data-only traffic. It is a subscriber based service that operates within the network and data link layers.






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






44. 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.






45. 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.






46. Type of topology where computers all are connected to each other - which provides redundancy.






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






48. 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.






49. OSI layer that provides routing - addressing - and fragmentation of packets. This layer can determine alternative routes to avoid network congestion. Protocols that use this layer are IP - ICMP - RIP - OSPF (Open Shortest Path First) - BGP (Border Ga






50. Type of backbone network that joins together LAN to other LANs and WANs to LANs - etc. Typically known as Synchronous Optical Networks (SONETS) or FDDI rings.