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






2. Less secure; Passwords are sent in clear text






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






4. Uses MD5 challange/response






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






6. 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






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






8. 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






9. What are common Data Link WAN encapsulations?






10. 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)






11. Method for encapsulating datagrams over serial links






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






13. WAN stands for?






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






15. Proprietary






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






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






18. 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






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






20. One bit at a time over a single channel






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






38. 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






39. Physical layer international standard for serial communication






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






41. Which PPP protocol provides link establishment?






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






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






44. Which is true regarding HDLC?






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






46. Nonproprietary






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






48. 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






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






50. 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