Test your basic knowledge |

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. 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.






2. 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.






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






4. 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.






5. 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.






6. OSI layer that formats data into a standardized format and deals with the syntax of data - not the meaning. Example formats are ASCII - GIF - JPG - MPEG.






7. Type of wireless security standard that uses AES in CBC mode.






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






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






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






11. 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.






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






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






14. 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).






15. 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.






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






17. 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.






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






19. 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.






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






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






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






23. 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






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






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






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






27. 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.






28. 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.






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






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






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






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






33. This network technology determines which system will send data based on which one has the token.






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






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






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






37. Type of network device that divides networks into more controllable segments to ensure more efficient use of bandwidth. Works at the data link layer and understands MAC addresses - not IP addresses.






38. Type of authentication protocol that provides a framework to enable may types of authentication techniques to be used during PPP connections. It extends the possibilities to one-time passwords - token cards - biometrics - Kerberos - and digital certi






39. 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.






40. A WAN protocol that works at the data link layer and performs packet switching. Economical choice because the fee is based on bandwidth usage rather than a dedicated pipeline.






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






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






43. 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.






44. 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.






45. 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.






46. 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.






47. 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.






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






49. 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.






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