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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. 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.






2. 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.






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






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






5. 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.






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






7. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.






8. 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.






9. 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






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






11. 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.






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






13. 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.






14. Protocol stack used instead of TCP/IP on wireless devices. The "gap" in this protocol involves translating its secure traffic to SSL or TLS - which is typically done by a 3rd party.






15. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'






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






17. 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.






18. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.






19. Protocol that translates a MAC address into an IP address.






20. 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.






21. 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).






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






23. 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






24. 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.






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






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






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






28. 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.






29. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.






30. 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.






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






32. 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.






33. 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.






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






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






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






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






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






39. 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






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






41. 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.






42. 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.






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






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






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






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






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






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






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






50. 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.






Can you answer 50 questions in 15 minutes?



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