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






2. Type of wireless authentication where the device does not need to provide a key for authentication. Usually - only the SSID is required and plaintext transmission occurs.






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






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






5. Type of network device that allows different network segments and/or systems to communicate. When communication takes place - a dedicated connection is set up - so collision and broadcast data is not available to other devices. Combined repeater (hub






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






7. 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.






8. 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






9. 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.






10. Used when a LAN device needs to communicate with WAN devices over telephone lines. Ensures the necessary electrical signaling and format are used. Interfaces with Data Terminal Equipment (DTE) and Data Circuit-Terminal Equipment (DCE).






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






12. 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.






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






14. 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.






15. 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.






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






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






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






19. 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.






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






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






22. Network where a dedicated virtual link is not set up - and packets can use many different dynamic paths to get to the same destination. This causes variable delays. Examples are frame relay and X.25






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






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






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






26. 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.






27. 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.






28. 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.






29. 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.






30. 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.






31. 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.






32. 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






33. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.






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






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






36. 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.






37. 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.






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






39. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'






40. Provides high-speed access - up to 50 Mbps - to the Internet through existing cable coaxial and fiber lines. Major security concern is the fact that neighbors use the same coaxial network and can monitor each others traffic.






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






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






43. The well known values range from 0-1023. FTP runs on 20 and 21 - SMTP runs on 25 - TFTP runs on 69 - DNS runs on 53 - HTTP runs on 80 - HTTPS runs on 443 - SNMP runs on 161.






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






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






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






47. 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.






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






49. 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.






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