Test your basic knowledge |

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






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






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






4. 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.






5. 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.






6. 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.






7. 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.






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






9. 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.






10. 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.






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






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






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. 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.






15. 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






16. 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.






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






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






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






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






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






22. 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.






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






24. 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.






25. 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.






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






27. 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.






28. 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






29. 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.






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






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






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






34. 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-






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






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






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






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






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






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






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






42. Wireless standard that will improve security of wireless communication






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






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






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






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






47. 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






48. VPN protocol that works at the data link layer - can only run in IP networks - and provides encryption and encapsulation. This is Microsoft's VPN solution.






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






50. These are used to connect multiple switches for traffic of the same classification. Example - two voice switches at a local phone company's central office.