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. 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.






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






3. Altering an ARP table so an IP address is mapped to a different MAC address. Results in traffic being routed to an attacker's computer.






4. Wireless communication that splits total amount of bandwidth into smaller sub-channels. Send and receiver work in one of the channels for a period of time - and then move into a different channel. It uses a portion of the bandwidth - throughput of 1-






5. 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






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






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






8. 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.






9. 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.






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






11. Type of wireless authentication where the device does not need to provide a key for authentication. Usually - only the SSID is required and plaintext transmission occurs.






12. 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.






13. 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.






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






15. 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.






16. 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.






17. 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.






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






19. 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.






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






21. 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.






22. Type of wireless security standard that uses AES in CBC mode.






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






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






25. Communication devices that determine synchronization scheme before data transmission.






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






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






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






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






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






31. 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.






32. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.






33. 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






34. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.






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






36. 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.






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






38. 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.






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






40. 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.






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






42. 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.






43. 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.






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






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






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






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






48. 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.






49. Strengths of a type of Stateful Firewall: High security - better performance than an application firewall. Weaknesses include more complex - ___________ - if rebooted all information is lost.






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