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






2. What are the two PPP authentication methods?






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






4. Specifies an encapsulation method for data on synchronous serial data links using frame characters and checksums






5. Proprietary






6. What are the PPP Data Link protocols?






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






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






9. HDLC stands for what?






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






11. 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






12. 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






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






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






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






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






17. Nonproprietary






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






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






20. Bit-oriented Data Link layer protocol






21. Which is true regarding HDLC?






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






23. Uses MD5 challange/response






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






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






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






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






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






29. Which PPP protocol provides link establishment?






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






31. 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






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






33. Physical layer international standard for serial communication






34. What are common Data Link WAN encapsulations?






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






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






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






38. 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)






39. Less secure; Passwords are sent in clear text






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






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






42. One bit at a time over a single channel






43. WAN stands for?






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






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






46. 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






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






48. 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






49. 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






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