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






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






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






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






5. Less secure; Passwords are sent in clear text






6. 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






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






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






9. 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






10. Method for encapsulating datagrams over serial links






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






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






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






14. 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)






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






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






17. HDLC stands for what?






18. What are the two PPP authentication methods?






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






20. 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






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






22. Which is true regarding HDLC?






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






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






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






26. WAN stands for?






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






28. 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






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






30. Method of establishing and configuring different Network layer protocols






31. Write the commands to configure s0 to PPP encapsulation






32. What does PPP mean?






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






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






35. Bit-oriented Data Link layer protocol






36. 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






37. What are the PPP Data Link protocols?






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






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






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






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






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






43. Uses MD5 challange/response






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






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






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






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






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






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






50. What are common Data Link WAN encapsulations?