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CISSP Telecom And Network Security

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.






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






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






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






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






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






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






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






9. Wireless standard that will improve security of wireless communication






10. 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.






11. 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.






12. Network cabling that is placed in these types of areas must meet a specific fire rating. These cables typically have a jacked cover made of fluoropolymers.






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






14. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.






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






16. 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






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






18. 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.






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






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






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






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






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






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






26. 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.






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






28. 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.






29. 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.






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






31. 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.






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






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






34. 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.






35. 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






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






37. 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






38. 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.






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






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






41. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.






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






43. 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.






44. 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.






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






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






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






48. Standard that addresses wireless MAN technologies.






49. 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).






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







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