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






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






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






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






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






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






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






8. Uses MD5 challange/response






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






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






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






12. 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






13. 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






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






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






16. One bit at a time over a single channel






17. Method for encapsulating datagrams over serial links






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






19. What are the PPP Data Link protocols?






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






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






22. Proprietary






23. 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






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






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






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






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






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






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






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






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






32. Write the commands to configure s0 to PPP encapsulation






33. What does PPP mean?






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






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






36. 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






37. 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






38. WAN stands for?






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






41. Write the commands to configure a username of todd and password of cisco that is used on a Cisco router






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






43. No authentication






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






45. 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






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






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






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






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






50. 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)