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






2. One bit at a time over a single channel






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






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






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






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






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






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






9. Which PPP protocol provides link establishment?






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






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






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






13. Nonproprietary






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






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






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






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






18. 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






19. 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






20. 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






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






22. Method for encapsulating datagrams over serial links






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






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






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






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






27. Method of establishing and configuring different Network layer protocols






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






29. Which is true regarding HDLC?






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






31. 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)






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






33. What are common Data Link WAN encapsulations?






34. What are the two PPP authentication methods?






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






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






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






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






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






40. Uses MD5 challange/response






41. Physical layer international standard for serial communication






42. HDLC stands for what?






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






44. What are the PPP Data Link protocols?






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






46. 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






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






48. 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






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






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