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






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






3. 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.






4. 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-






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






6. A WAN protocol that works at the data link layer and performs packet switching. Economical choice because the fee is based on bandwidth usage rather than a dedicated pipeline.






7. 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.






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






9. 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






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






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






12. Strengths of a type of Stateful Firewall: High security - better performance than an application firewall. Weaknesses include more complex - ___________ - if rebooted all information is lost.






13. Type of switch that uses tags that are assigned to each destination network. The network compares the tag with its tag information base - appends the appropriate tag - and forwards to the next switch. This increases the transmission speed - allows la






14. 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.






15. 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.






16. 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






17. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.






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






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






20. 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.






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






22. 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.






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






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






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






26. Type of network device that is the simplest type of connectivity because it only repeats and amplifies electric signals between cable segments. Works at the physical layer.






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






28. 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.






29. 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.






30. 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.






31. 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.






32. 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).






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






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






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






36. 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.






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






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






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






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






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






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






43. As they travel down the OSI model on the source computer - each layer adds its own information so the corresponding layer on the destination machine knows how to process the data.






44. In the OSI layer 5 - these are the types of what?






45. 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.






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






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






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






49. 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).






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