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. What are the PPP Data Link protocols?






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






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






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






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






6. 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






7. Which is true regarding HDLC?






8. 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






9. 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






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






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






12. Write the commands to configure s0 to PPP encapsulation






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






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






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






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






17. Proprietary






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






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






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






21. One bit at a time over a single channel






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






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






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






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






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






27. WAN stands for?






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






29. 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






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






31. HDLC stands for what?






32. 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






33. 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)






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






35. 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






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






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






38. No authentication






39. 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






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






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






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






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






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






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






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






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






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






49. What are the two PPP authentication methods?






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