Test your basic knowledge |

Wide Area Netwoking Protocols

Subject : it-skills
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. What are common Data Link WAN encapsulations?






2. Can encapsulate several layer 3 routed protocols and provide authentication - dynamic addressing - and callback






3. Method of establishing and configuring different Network layer protocols






4. What are the PPP Data Link protocols?






5. LCP packets are sent by each PPP device to configure and test the link






6. Which Data Link encapsulation can be used if you have one free serial interface and many remote offices to connect?






7. The spot where the service provider's responsibility ends and the CPE begins






8. Nonproprietary






9. Which of the following are considered common Data Link WAN encapsulation types? (Choose three.)






10. Used to create point-to-point links between different vendors' equipment; uses a Network Control Protocol field in the Data Link header to identify the Network layer protocol; allows authentication and multilink connections and can be run over asynch






11. Which of the following encapsulations was considered an upgrade from x.25?






12. Which encapsulations can be configured on a serial interface? (Choose three.)






13. Bit-oriented Data Link layer protocol






14. Data Link layer protocol that can be used over either asynchronous serial (dial-up) or synchronous serial (ISDN) media






15. A connection-oriented protocol at the Data Link layer for use with X.25; causes a tremendous amount of overhead because of its strict time-out and windowing techniques; can also be used as a simple data link transport






16. When a router is connected to a Frame Relay WAN link using a serial DTE interface - how is the clock rate determined?






17. If you have a T1 - what must you connect from your router to a demarc?






18. What is a good command to verify your serial interface on a router?






19. To connect two DTE networks together through a DCE network






20. If required - either CHAP or PAP can be used to authenticate a link






21. The default encapsulation used by Cisco routers over synchronous serial links






22. Which of the following protocols are used with ISDN as an out-of-band protocol?






23. A trunk line inside a WAN provider's network; a collection of switches and facilities owned by the ISP






24. No authentication






25. Less secure; Passwords are sent in clear text






26. Protocol stack is specified at the Physical and Data Link layers only






27. Uses MD5 challange/response






28. Uses dial-up modems or ISDN and is used for low-bandwidth data transfers; No data can transfer before an end-to-end connection is established






29. What are the two PPP authentication methods?






30. Serial interfaces by default; connect into data communication equipment (DCE)






31. Includes the area from the CSU/DSU - through the provider's wiring and switches - all the way to the CSU/DSU at the other end; provides clocking to the DTE-connected interface (the router's serial interface)






32. If you had one serial interface on your router and needed to connect many remote locations - which Data Link encapsulation should you use?






33. Uses the Network Control Protocol (NCP) to allow multiple Network layer protocols to be encapsulated and sent over a PPP data link






34. A point-to-point connection or dedicated connection; a pre-established WAN communications path from the CPE through the DCE switch to the CPE of the remote site - allowing DTE networks to communicate at any time with no setup procedures before transm






35. Uses the LCP (Link Control Protocol) to build and maintain data link connections






36. Used with ISDN at the Data Link layer (layer 2) as a protocol for the D (signaling) channel






37. Physical layer international standard for serial communication






38. How do you configure a serial interface to use PPP encapsulation?






39. Allows you to share bandwidth with other companies to save money; a network that's designed to look like a leased line yet charges you (and costs) more like circuit switching; data transfers are bursty in nature; Frame Relay and X.25






40. One bit at a time over a single channel






41. To transport layer 3 packets across a Data Link layer point-to-point link






42. Equipment that's owned by the subscriber and located on the subscriber's premises






43. What is the default serial encapsulation used on Cisco routers?






44. Network Control Protocol (NCP) is used to allow multiple Network layer protocols (routed protocols) to be used on a point-to-point connection






45. Proprietary






46. A set of digital services that transmit voice and data over existing phone lines






47. Data Link and Physical layer specification that provides high performance; successor to X.25






48. Method for encapsulating datagrams over serial links






49. What is the default serial encapsulation on a Cisco router?






50. What does PPP mean?