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






2. Write the commands to configure s0 to PPP encapsulation






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






4. Which is true regarding HDLC?






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






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






7. 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






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






9. 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






10. Method of establishing and configuring different Network layer protocols






11. Proprietary






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






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






14. Method for encapsulating datagrams over serial links






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






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






17. What does PPP mean?






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






19. 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






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






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






22. HDLC stands for what?






23. 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)






24. 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






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






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






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






29. 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






30. No authentication






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






32. What are the two PPP authentication methods?






33. One bit at a time over a single channel






34. Which PPP protocol provides link establishment?






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






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






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






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






39. 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






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






41. Less secure; Passwords are sent in clear text






42. What are the PPP Data Link protocols?






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






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






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






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






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






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






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






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