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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. 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.






2. Wireless standard that will improve security of wireless communication






3. OSI layer that provides end to end transmission between computer systems. Protocols that use this layer are TCP (Transmission Control Protocol) - UDP (User Datagram Protocol) - SPX (Sequenced Packet Exchange) - and SSL.






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






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






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






7. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.






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






9. 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.






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






11. 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.






12. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'






13. Dynamically builds ACL's to allow internal systems to communicate with external systems. Once the connection is finished - the ACL is removed from the list. 4th generation firewall.






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






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






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






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






18. 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.






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






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






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






22. 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.






23. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.






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






25. 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).






26. 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.






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






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






29. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.






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






31. Spam over IM






32. 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.






33. 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.






34. Standard that addresses wireless MAN technologies.






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






36. 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.






37. 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).






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






39. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.






40. 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






41. 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.






42. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.






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






44. Type of network layout that separates and group computers logically.






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






46. 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.






47. 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.






48. 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.






49. OSI layer that provides physical connections for transmission and performs the electrical encoding of data. This layer transforms bits to electrical signals. Protocols at this level HSSI (High Speed Serial Interface) - X.21 - EIA/TIA 232 and 449.






50. If the packet header information is used to determine destinations rather than the routes configured into the router. Packets with this information should be dropped.






Can you answer 50 questions in 15 minutes?



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