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. 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)






2. No authentication






3. Uses MD5 challange/response






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






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






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






7. Less secure; Passwords are sent in clear text






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. 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






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






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






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






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






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






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






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






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






18. 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






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






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






21. 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






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






23. Proprietary






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






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






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






27. What are common Data Link WAN encapsulations?






28. Write the commands to configure s0 to PPP encapsulation






29. Which PPP protocol provides link establishment?






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






31. 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






32. Which is true regarding HDLC?






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






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






35. One bit at a time over a single channel






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






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






38. Nonproprietary






39. Bit-oriented Data Link layer protocol






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






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






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






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






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






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






46. 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






47. 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






48. What are the two PPP authentication methods?






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






50. 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