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






2. 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.






3. 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.






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






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






6. Proprietary protocol that enables secondary devices to communicate with primary stations or mainframes in an IBM architecture. Developed in the mid-70's for use in a systems network architecture (SNA) environment. First synchronous - link layer - bit






7. 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).






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






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






10. 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.






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






12. 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.






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






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






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






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






17. 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.






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






19. Communication process that must deliver data with set time constraints. Applications are typically video related where audio and must match perfectly. VoIP is another example.






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






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






22. 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.






23. 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.






24. 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.






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






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






27. 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.






28. Problems: Central device is a single point of failure.






29. 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






30. 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.






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






32. 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.






33. 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.






34. 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.






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






36. 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.






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






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






39. Standard that addresses wireless MAN technologies.






40. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'






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






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






43. 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.






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






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






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






47. 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.






48. 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






49. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.






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