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






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






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






4. 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.






5. SMTP server that is configured for sending email from any source to and destination.






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






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






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






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






11. 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.






12. Standard that addresses wireless MAN technologies.






13. 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.






14. 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.






15. Spam over IM






16. 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.






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






18. 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.






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






20. 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.






21. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.






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






23. 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.






24. 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






25. Type of firewall that uses a proxy for each service and can understand and make decisions on the protocols used and the commands within those protocols - runs at the application layer.






26. Set of rules that dictates how computer communicate over networks.






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






28. Standard that outlines wireless personal area network (WPAN) technologies.






29. 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-






30. 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).






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






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






33. 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






34. 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.






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






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






37. 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.






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






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






40. 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.






41. Type of cable where STP and UTP (shielded and unshielded) cables are the most popular - cheapest - and easiest to work with. However - easiest to tap into - have cross talk issues - and are vulnerable to electromagnetic interference (EMI).






42. OSI layer 2 Sub-layers. The first provides a standard interface for the network protocol being used. The second provides a standard interface for the physical layer protocol being used.






43. Transmits high speed bandwidth over phone lines. Provides data rates up to 52 Mpbs using line of 1000 feet or less. Must be within 2.5 miles of a central office.






44. 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.






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






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






47. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.






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






49. 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.






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