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






2. 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.






3. 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-






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






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






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






7. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.






8. 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






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






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






11. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.






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






13. 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).






14. 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.






15. 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.






16. Wireless standard that will improve security of wireless communication






17. 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.






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






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






20. 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.






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






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






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






24. 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.






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






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






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






28. 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.






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






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






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






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






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






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






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






36. 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.






37. 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.






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






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






40. 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.






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






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






43. 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.






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






45. 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.






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






47. 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.






48. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.






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






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.







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