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






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






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






5. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.






6. 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.






7. 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.






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






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






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






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






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






13. Dynamically builds ACL's to allow internal systems to communicate with external systems. Once the connection is finished - the ACL is removed from the list. 4th generation firewall.






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






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






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






18. 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.






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






20. 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.






21. Transmits high speed bandwidth over phone lines. Provides data rates up to 52 Mpbs using line of 1000 feet or less. Must be within 2.5 miles of a central office.






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






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






24. Most expensive type of WAN connection because the fee is based on distance between the two points rather than the amount of bandwidth used. Examples - T1 and T3.






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






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






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






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






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






30. 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.






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






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






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. Uses tunneling protocols and encryption to provide a secure network connection between two network hosts. Private and secure connections can be made across an unsecured network. Example protocols are PPTP - L2TP - and IPSec.






35. 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.






36. 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.






37. 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).






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






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






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






41. Type of cable that carries data as light waves - expensive - can transmit data at high speeds - difficult to tap into - and is resistant to EMI. Most secure cabling option - but vulnerable to dispersion.






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






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






45. 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.






46. 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.






47. 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.






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






49. 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.






50. Standard that addresses wireless MAN technologies.