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






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






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






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






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






6. Proprietary






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






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






9. 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






10. What are the PPP Data Link protocols?






11. No authentication






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






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






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






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






16. Nonproprietary






17. Method of establishing and configuring different Network layer protocols






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






19. 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






20. Physical layer international standard for serial communication






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






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






23. Write the commands to configure s0 to PPP encapsulation






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






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






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






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






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






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






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






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






32. 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






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






34. Uses MD5 challange/response






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






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






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






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






39. 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






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






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






42. What does PPP mean?






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






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






45. Which is true regarding HDLC?






46. 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






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






48. 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






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






50. 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