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






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






3. Write the commands to configure s0 to PPP encapsulation






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






5. Less secure; Passwords are sent in clear text






6. Method of establishing - configuring - maintaining - and terminating the point-to-point connection






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






8. Designed to allow the simultaneous use of multiple Network layer protocols






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






10. Write the commands to configure a username of todd and password of cisco that is used on a Cisco router






11. Physical layer international standard for serial communication






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






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






14. Nonproprietary






15. Proprietary






16. What are the PPP Data Link protocols?






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






18. Method of establishing and configuring different Network layer protocols






19. Which is true regarding HDLC?






20. 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






21. 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






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






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






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






25. Write the command to see the encapsulation method on serial 0 of a Cisco router






26. Connects the demarc to the closest switching office - called a central office






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






28. When PPP connections are started - the links go through three phases of session establishment. What are the three phases?






29. What are the two PPP authentication methods?






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






31. 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






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






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






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






35. 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






36. No authentication






37. WAN stands for?






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






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






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






41. Derived from Synchronous Data Link Control (SDLC); created by IBM as a Data Link connection protocol; very little overhead compared to LAPB; The HDLC header carries no identification of the type of protocol being carried inside the HDLC encapsulation






42. What does PPP mean?






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






44. Which type of port on a router is used for a T1?






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






46. HDLC stands for what?






47. 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






48. What is the reason why the serial link between the Corp router and the Remote router will not come up?






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






50. Method for encapsulating datagrams over serial links







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