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






2. 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.






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






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






5. Wireless standard that will improve security of wireless communication






6. Type of topology that uses a bus that does not have a one linear cable - but instead uses branches of cables. Commonly used in Ethernet.






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






8. Most commonly used LAN implementation today. Considered a "chatty" protocol because it allows all systems to hear each other's broadcasts. Has many collisions because all systems share the same medium. Can operate at 10 to 1000 Mbps.






9. Strengths of a type of firewall: Better security than packet filtering. Looks at all info in the packet - up to the application layer. Breaks the connection between trusted and untrusted systems. Weaknesses include limited number of applications supp






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






11. 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.






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






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






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






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






16. 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).






17. 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.






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






19. 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






20. 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.






21. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.






22. Protocol that works at the network layer and informs hosts - routers - and devices of network or computer problems. It is the major component of the ping utility.






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






24. 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.






25. 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.






26. 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.






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






28. 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






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






30. 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.






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






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






33. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.






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






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






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






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






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






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






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






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






42. 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.






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






44. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.






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






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






47. 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.






48. 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.






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






50. 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.