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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 a good command to verify your serial interface on a router?






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






3. HDLC stands for what?






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






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






6. Nonproprietary






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






8. 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






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






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






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






12. Method for encapsulating datagrams over serial links






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






14. 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






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






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






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






18. Which is true regarding HDLC?






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






20. Uses MD5 challange/response






21. 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






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






23. 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






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






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






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






27. 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






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






29. Proprietary






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






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






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






33. WAN stands for?






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






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






36. What are the PPP Data Link protocols?






37. No authentication






38. 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






39. Uses the LCP (Link Control Protocol) to build and maintain data link connections






40. Method of establishing and configuring different Network layer protocols






41. What are common Data Link WAN encapsulations?






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






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






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






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






46. Bit-oriented Data Link layer protocol






47. One bit at a time over a single channel






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






49. Physical layer international standard for serial communication






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






Can you answer 50 questions in 15 minutes?



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