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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. 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.






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






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






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






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






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






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






8. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.






9. 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.






10. Layer 3 - layer 4 - and other layer switches have more enhanced functionality than layer 2 switches. Combines switching and routing technologies - packet inspection - traffic prioritization - and quality of service (QoS).






11. Spam over IM






12. 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






13. 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.






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






15. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.






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






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






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






19. 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.






20. Protocol that increases address size from 32 bits to 128 bits






21. 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.






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






23. 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.






24. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.






25. Type of wireless security standard that uses AES in CBC mode.






26. 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.






27. 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






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






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






30. 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.






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






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






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






34. Standard that addresses wireless MAN technologies.






35. 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.






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






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. 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.






39. 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.






40. 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.






41. 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.






42. 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.






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






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






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. 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.






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






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






49. 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.






50. 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.