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. What are common Data Link WAN encapsulations?






3. Proprietary






4. Nonproprietary






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






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






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






8. 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






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






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






11. 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






12. 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






13. Which type of port on a router is used for a T1?






14. No authentication






15. 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






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






17. 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






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






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






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






21. 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)






22. What are the two PPP authentication methods?






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






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






25. Physical layer international standard for serial communication






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






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






28. Uses MD5 challange/response






29. Which PPP protocol provides link establishment?






30. Method of establishing and configuring different Network layer protocols






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






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






33. Method for encapsulating datagrams over serial links






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






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






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






37. 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






38. What does PPP mean?






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






40. WAN stands for?






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






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






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






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






45. 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






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






47. One bit at a time over a single channel






48. Write the commands to configure s0 to PPP encapsulation






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






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