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






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






3. 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






4. 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)






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






6. Which protocol in PPP is used to identify the routed protocols?






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






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






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






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






11. What does PPP mean?






12. Method for encapsulating datagrams over serial links






13. Method of establishing and configuring different Network layer protocols






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






15. WAN stands for?






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






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






18. What are the PPP Data Link protocols?






19. 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






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






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






22. Which is true regarding HDLC?






23. Less secure; Passwords are sent in clear text






24. HDLC stands for what?






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






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






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






28. Proprietary






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






30. What are common Data Link WAN encapsulations?






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






32. 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






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






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






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. Bit-oriented Data Link layer protocol






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






38. No authentication






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






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






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






42. 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






43. 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






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






45. What are the two PPP authentication methods?






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






47. Write the commands to configure s0 to PPP encapsulation






48. One bit at a time over a single channel






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






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







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