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. WAN stands for?






2. 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






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






4. What are the PPP Data Link protocols?






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






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






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






8. Write the commands to configure s0 to PPP encapsulation






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






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






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






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






13. 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)






14. 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






15. What does PPP mean?






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






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






18. Uses MD5 challange/response






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






20. HDLC stands for what?






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






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






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






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






25. 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






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






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






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






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






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






31. 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






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






33. Method for encapsulating datagrams over serial links






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






35. No authentication






36. What are common Data Link WAN encapsulations?






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






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 are considered common Data Link WAN encapsulation types? (Choose three.)






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






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






42. Less secure; Passwords are sent in clear text






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






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






45. One bit at a time over a single channel






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






47. Bit-oriented Data Link layer protocol






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






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






50. 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