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






2. 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.






3. 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.






4. 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).






5. Proprietary protocol that enables secondary devices to communicate with primary stations or mainframes in an IBM architecture. Developed in the mid-70's for use in a systems network architecture (SNA) environment. First synchronous - link layer - bit






6. 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.






7. 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.






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






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






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






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






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






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






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






15. OSI layer that sets up - maintains - and breaks down the dialog (session) between two applications. Controls dialog organization and synchronization. Protocols that work at this layer are NFS (Network File System) - SQL - NetBIOS - RPC.






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






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






18. 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






19. 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.






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






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






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






23. 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






24. 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.






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






26. 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.






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






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






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






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






31. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.






32. 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.






33. 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.






34. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.






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






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






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






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






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






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






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






44. 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).






45. 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.






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






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






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






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. New variant to traditional email spam on VoIP networks.