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. Which PPP protocol provides link establishment?






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






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






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






5. Can encapsulate several layer 3 routed protocols and provide authentication - dynamic addressing - and callback






6. No authentication






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






8. Uses MD5 challange/response






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






10. 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






11. 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






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






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






14. What are common Data Link WAN encapsulations?






15. Which is true regarding HDLC?






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






17. What are the PPP Data Link protocols?






18. One bit at a time over a single channel






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






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






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






22. Method for encapsulating datagrams over serial links






23. 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






24. 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






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






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






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






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






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






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






31. 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






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






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






34. HDLC stands for what?






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






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






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






38. Less secure; Passwords are sent in clear text






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






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






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






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






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






44. Bit-oriented Data Link layer protocol






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






46. What are the two PPP authentication methods?






47. Proprietary






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






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






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