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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. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.






2. 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.






3. 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.






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






5. 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.






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






7. 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.






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






9. 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).






10. 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).






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






12. 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.






13. Spam over IM






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






15. 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.






16. 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.






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






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






19. 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.






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






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






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






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






24. Type of cable that carries data as light waves - expensive - can transmit data at high speeds - difficult to tap into - and is resistant to EMI. Most secure cabling option - but vulnerable to dispersion.






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






26. 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.






27. 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






28. 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.






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






30. 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






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






32. 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.






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






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






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






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






37. 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.






38. 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.






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






40. Network where a dedicated virtual link is not set up - and packets can use many different dynamic paths to get to the same destination. This causes variable delays. Examples are frame relay and X.25






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






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






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






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






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






46. 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.






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






48. 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-






49. Wireless communication that applies sub-bits to a message (chips) and the receiver uses the chips to re-assemble the message based on the chipping code. It uses all available bandwidth - high throughput of 11Mbps.






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