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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. 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.






2. 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).






3. 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.






4. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.






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






6. 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.






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






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






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






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






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






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






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






14. 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






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






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






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






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






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






20. 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-






21. 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.






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






23. 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.






24. 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).






25. 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.






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






27. 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.






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






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






30. 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.






31. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.






32. 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.






33. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.






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






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






36. 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.






37. 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






38. 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.






39. 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






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






41. 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.






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






43. 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.






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






45. Wireless standard that will improve security of wireless communication






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






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






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






49. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.






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.







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