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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. 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.






2. 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).






3. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.






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






5. 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.






6. 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.






7. 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.






8. 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






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






10. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.






11. Type of firewall that lies between the perimeter router and and LAN.






12. 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.






13. Communication devices that are not synchronized - meaning all devices can send data at will - send a sequence of bits framed with a start and stop bit.






14. Type of network layout that is a large geographical region connecting more that one LAN.






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






16. 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.






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






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






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






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






21. 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.






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






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






24. A simplified version of X.25 - without the error checking that was done on the network. It handles error checking at the end node - which helps improve speed dramatically.






25. Type of authentication protocol that provides a framework to enable may types of authentication techniques to be used during PPP connections. It extends the possibilities to one-time passwords - token cards - biometrics - Kerberos - and digital certi






26. 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.






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






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






29. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS






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






31. 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.






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






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






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






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






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






37. 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.






38. 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.






39. 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.






40. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.






41. 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.






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






43. 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.






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






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






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






48. 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.






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






50. 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.