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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. 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






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






3. Method of establishing and configuring different Network layer protocols






4. 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






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






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






7. 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






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






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






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






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. WAN stands for?






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






14. Bit-oriented Data Link layer protocol






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






16. Method for encapsulating datagrams over serial links






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






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






19. Physical layer international standard for serial communication






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






21. 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






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






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






24. Write the commands to configure s0 to PPP encapsulation






25. What are common Data Link WAN encapsulations?






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






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






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






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






30. Less secure; Passwords are sent in clear text






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






32. Uses MD5 challange/response






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






34. What are the two PPP authentication methods?






35. 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






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






37. To transport layer 3 packets across a Data Link layer point-to-point link






38. Proprietary






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






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






41. Nonproprietary






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






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






44. What does PPP mean?






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






46. What are the PPP Data Link protocols?






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






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






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






50. Which is true regarding HDLC?







Sorry!:) No result found.

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