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. 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






2. What are common Data Link WAN encapsulations?






3. Uses cells instead of packets that are a fixed 53 bytes long; can use isochronous clocking (external clocking) to help the data move faster; provides simultaneous transmission of voice - video - and data






4. Method of establishing and configuring different Network layer protocols






5. WAN stands for?






6. One bit at a time over a single channel






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






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






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






10. What are the PPP Data Link protocols?






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






12. Proprietary






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






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






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






16. Which is true regarding HDLC?






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






18. 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)






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






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






21. Less secure; Passwords are sent in clear text






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






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






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






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






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






27. 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






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






29. 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






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






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






32. Which PPP protocol provides link establishment?






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






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






35. Nonproprietary






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






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






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






39. Write the commands to configure s0 to PPP encapsulation






40. 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






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






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






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






44. HDLC stands for what?






45. What are the two PPP authentication methods?






46. What does PPP mean?






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






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






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






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