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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. 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.






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






3. OSI layer that prepares data for the network medium by framing it into LAN/WAN frames. Defines how the physical layer transmits the network packets. Protocols at this layer ARP (Address Resolution Protocol) - RARP (Reverse Address Resolution Protocol






4. 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.






5. 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).






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






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






8. 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.






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






10. 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.






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






12. 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.






13. Malware attack that sends commands inside of an ICMP packet.






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






15. 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.






16. 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.






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






18. 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.






19. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.






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






21. 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.






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






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






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






25. 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.






26. 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.






27. More complexity and drastically increases the difficultly of access control. Many different devices - services - and users make it difficult to know which entities to trust and to what degree.






28. 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






29. 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.






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






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






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






33. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.






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






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






36. Type of firewall that keeps track of each communication session. It must maintain a state table that contains data about each connection. 3rd generation firewall - runs at the network layer.






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






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






39. Type of network device that is the simplest type of connectivity because it only repeats and amplifies electric signals between cable segments. Works at the physical layer.






40. Standard that addresses wireless MAN technologies.






41. 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.






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






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






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






45. 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).






46. Device used within companies to provide multiple services to users throughout a building or facility. Example - dialing 9 to place outbound phone calls. Security concerns: default configurations and passwords - maintenance modems disabled - unused co






47. 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).






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






49. 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.






50. 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.