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. Layer 3 - layer 4 - and other layer switches have more enhanced functionality than layer 2 switches. Combines switching and routing technologies - packet inspection - traffic prioritization - and quality of service (QoS).






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






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






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






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






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






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






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






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






10. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.






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






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






13. 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.






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






15. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.






16. 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






17. 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.






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






19. 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).






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






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






22. Wireless standard that will improve security of wireless communication






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






24. 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.






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. 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.






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






28. 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.






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






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






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






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






33. 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.






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






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






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






37. Standard that addresses wireless MAN technologies.






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






39. 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.






40. 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.






41. 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.






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. 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.






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






45. 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.






46. 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.






47. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.






48. 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.






49. 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.






50. 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.