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






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






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






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






5. 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.






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






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






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






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






10. 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.






11. 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.






12. 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.






13. 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.






14. Malware attack that sends commands inside of an ICMP packet.






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






16. 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






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






18. 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.






19. 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






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






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






22. 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.






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






24. OSI layer that provides routing - addressing - and fragmentation of packets. This layer can determine alternative routes to avoid network congestion. Protocols that use this layer are IP - ICMP - RIP - OSPF (Open Shortest Path First) - BGP (Border Ga






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






26. 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.






27. 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.






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






29. 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.






30. 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.






31. 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






32. 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.






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






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






35. 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.






36. 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.






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






38. 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.






39. 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.






40. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.






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






42. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.






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






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






45. 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.






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






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






48. 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.






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






50. 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.