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






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






3. 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






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






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






6. Method for encapsulating datagrams over serial links






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






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






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






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






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






12. 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






13. Physical layer international standard for serial communication






14. HDLC stands for what?






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






16. What are the PPP Data Link protocols?






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






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






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






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






21. WAN stands for?






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






23. 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






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






25. 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






26. What are common Data Link WAN encapsulations?






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






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






29. 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






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






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






32. 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






33. Write the commands to configure s0 to PPP encapsulation






34. One bit at a time over a single channel






35. Nonproprietary






36. 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






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






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






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






40. Which is true regarding HDLC?






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






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






43. Method of establishing and configuring different Network layer protocols






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






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






46. 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






47. What does PPP mean?






48. Proprietary






49. No authentication






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