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






2. 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






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






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






5. Method of establishing and configuring different Network layer protocols






6. Bit-oriented Data Link layer protocol






7. 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






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






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






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






11. Proprietary






12. 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






13. 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






14. What does PPP mean?






15. Physical layer international standard for serial communication






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






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






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






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






20. 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






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






22. Which is true regarding HDLC?






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






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






25. Method for encapsulating datagrams over serial links






26. 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






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






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






29. Uses MD5 challange/response






30. Nonproprietary






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






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






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






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






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






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






37. No authentication






38. WAN stands for?






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






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






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






42. Less secure; Passwords are sent in clear text






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






44. Write the commands to configure s0 to PPP encapsulation






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






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






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






48. One bit at a time over a single channel






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






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