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






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






3. The Acme Corporation is implementing dial-up services to enable remote-office employees to connect to the local network. The company uses multiple routed protocols - needs authentication of users connecting to the network - and - since some calls wil






4. What are the PPP Data Link protocols?






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






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






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






8. 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






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






10. One bit at a time over a single channel






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






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






13. Write the commands to configure s0 to PPP encapsulation






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






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






16. This point connects the customers to the provider's switching network






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






18. 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






19. Physical layer international standard for serial communication






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






21. No authentication






22. What are common Data Link WAN encapsulations?






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






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






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






26. Which are considered WAN connection types? (Choose three.)






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






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






29. What does PPP mean?






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






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






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






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






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






35. Proprietary






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






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






38. Bit-oriented Data Link layer protocol






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






40. HDLC stands for what?






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






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






43. 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






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






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






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






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






48. 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)






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






50. Which is true regarding HDLC?






Can you answer 50 questions in 15 minutes?



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