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






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






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






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






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






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






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






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






9. Write the commands to configure s0 to PPP encapsulation






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






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






12. Method for encapsulating datagrams over serial links






13. Which is true regarding HDLC?






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






15. 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






16. What are common Data Link WAN encapsulations?






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






18. No authentication






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






20. WAN stands for?






21. Physical layer international standard for serial communication






22. HDLC stands for what?






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






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






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






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






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






28. 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)






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






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






31. What does PPP mean?






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






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






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






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






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






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






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






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






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






41. 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






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






43. Nonproprietary






44. Uses MD5 challange/response






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






46. One bit at a time over a single channel






47. What are the two PPP authentication methods?






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






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






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