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






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






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






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






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






7. 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






8. One bit at a time over a single channel






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






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






11. Physical layer international standard for serial communication






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






13. WAN stands for?






14. Write the commands to configure s0 to PPP encapsulation






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






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






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






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






19. 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






20. Nonproprietary






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






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






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






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






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






26. 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






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






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






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






30. Which PPP protocol provides link establishment?






31. 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






32. 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)






33. What are common Data Link WAN encapsulations?






34. Bit-oriented Data Link layer protocol






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






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






37. Which is true regarding HDLC?






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






39. Proprietary






40. Uses MD5 challange/response






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






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






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






44. 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






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






46. Method of establishing and configuring different Network layer protocols






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






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






49. No authentication






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