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. HDLC stands for what?






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






3. What are common Data Link WAN encapsulations?






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






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






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






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






8. 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






9. One bit at a time over a single channel






10. Physical layer international standard for serial communication






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






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






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






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






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






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






17. The Acme Corporation is implementing dial-up services to enable remote-office employees to connect to the local network. The company uses multiple routed protocols - needs authentication of users connecting to the network - and - since some calls wil






18. Method of establishing and configuring different Network layer protocols






19. 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)






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






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






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






23. Which is true regarding HDLC?






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






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






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






27. 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






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






29. 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






30. Nonproprietary






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






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






33. 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






34. What are the PPP Data Link protocols?






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






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






37. Less secure; Passwords are sent in clear text






38. What does PPP mean?






39. 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






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






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






42. Method for encapsulating datagrams over serial links






43. Proprietary






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






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






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






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






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






49. WAN stands for?






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