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






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






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






4. 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






5. No authentication






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






7. WAN stands for?






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






9. Which is true regarding HDLC?






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






11. What are the PPP Data Link protocols?






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






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






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






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






16. Uses MD5 challange/response






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






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






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






20. Write the commands to configure s0 to PPP encapsulation






21. 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






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






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






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






25. 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






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






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






28. Proprietary






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






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






31. 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






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






33. Which PPP protocol provides link establishment?






34. Physical layer international standard for serial communication






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






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






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






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






39. The Acme Corporation is implementing dial-up services to enable remote-office employees to connect to the local network. The company uses multiple routed protocols - needs authentication of users connecting to the network - and - since some calls wil






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






41. Nonproprietary






42. 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)






43. Method for encapsulating datagrams over serial links






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






45. 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






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






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






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






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






50. HDLC stands for what?







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