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






2. What are the PPP Data Link protocols?






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






4. WAN stands for?






5. 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)






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






7. 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






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






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






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






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






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






13. Which protocol in PPP is used to identify the routed protocols?






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






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






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






19. Which of that following is a packet-switching encapsulation?






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






21. What are common Data Link WAN encapsulations?






22. Physical layer international standard for serial communication






23. 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






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






25. What does PPP mean?






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






27. What are the two PPP authentication methods?






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






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






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






31. 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






32. Method of establishing and configuring different Network layer protocols






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






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






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






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






37. 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






38. Proprietary






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






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






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






42. 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






43. Which is true regarding HDLC?






44. HDLC stands for what?






45. Which PPP protocol provides link establishment?






46. Method for encapsulating datagrams over serial links






47. A point-to-point protocol used on leased lines






48. Uses MD5 challange/response






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






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