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






2. 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






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






4. One bit at a time over a single channel






5. What are the PPP Data Link protocols?






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






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






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






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






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






11. Physical layer international standard for serial communication






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






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






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






15. Uses MD5 challange/response






16. WAN stands for?






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






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






19. Nonproprietary






20. Bit-oriented Data Link layer protocol






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






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






23. What are the two PPP authentication methods?






24. 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






25. Method for encapsulating datagrams over serial links






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






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






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






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






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






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






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






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






34. 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






35. Less secure; Passwords are sent in clear text






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






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






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






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






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






41. 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






42. Write the commands to configure s0 to PPP encapsulation






43. 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






44. 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)






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






46. Method of establishing and configuring different Network layer protocols






47. What are common Data Link WAN encapsulations?






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






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






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






Can you answer 50 questions in 15 minutes?



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