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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 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.






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






3. 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.






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






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






6. 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.






7. 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.






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






9. 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






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






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






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






13. 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.






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






15. 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.






16. Type of topology that Uses linear single cable for all computers attached. All traffic travels full cable and can be viewed by all other computers.






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






18. 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.






19. 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.






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






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






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






23. 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.






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






25. 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.






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






27. 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.






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






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






30. 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.






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






32. Wireless standard that will improve security of wireless communication






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






34. 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.






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






36. The well known values range from 0-1023. FTP runs on 20 and 21 - SMTP runs on 25 - TFTP runs on 69 - DNS runs on 53 - HTTP runs on 80 - HTTPS runs on 443 - SNMP runs on 161.






37. 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.






38. Type of cable where STP and UTP (shielded and unshielded) cables are the most popular - cheapest - and easiest to work with. However - easiest to tap into - have cross talk issues - and are vulnerable to electromagnetic interference (EMI).






39. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.






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






41. 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.






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






43. 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.






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






45. 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.






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






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. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.






49. 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).






50. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS