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. 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






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






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






4. Uses MD5 challange/response






5. 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






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






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






8. 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






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






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






11. 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






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






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






14. No authentication






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






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






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






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






19. Method of establishing and configuring different Network layer protocols






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






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






22. HDLC stands for what?






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






24. 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






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






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






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






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






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






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






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






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






33. Which is true regarding HDLC?






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






35. 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






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






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






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






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






40. What are common Data Link WAN encapsulations?






41. WAN stands for?






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






43. 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






44. What does PPP mean?






45. Which PPP protocol provides link establishment?






46. Bit-oriented Data Link layer protocol






47. Physical layer international standard for serial communication






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






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






50. Less secure; Passwords are sent in clear text