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






2. 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.






3. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.






4. Protocol based on the SDLC protocol - except it is an open protocol - supports full-duplex connections - and provides a higher throughput. It also provides polling - which enables secondary units to communicate with primary units.






5. 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.






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






7. 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.






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






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






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






11. Communication process that must deliver data with set time constraints. Applications are typically video related where audio and must match perfectly. VoIP is another example.






12. 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.






13. 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.






14. 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






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






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






17. 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.






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






19. Network cabling that is placed in these types of areas must meet a specific fire rating. These cables typically have a jacked cover made of fluoropolymers.






20. 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.






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






22. 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.






23. 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.






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






25. Wireless standard that will improve security of wireless communication






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






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






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






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






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






31. 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.






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






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






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






35. 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.






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






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






38. 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.






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






40. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'






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






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






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






44. SMTP server that is configured for sending email from any source to and destination.






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






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






47. 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.






48. 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.






49. Security wireless standard that enables data transfers to be encrypted. Static encryption keys among clients - short 40 bit keys - RC4 encryption - ineffective use of 24 bit IV's - and no packet integrity.






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