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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. HDLC stands for what?






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. What does PPP mean?






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






5. 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






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






7. 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






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






9. Method of establishing and configuring different Network layer protocols






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






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






12. Less secure; Passwords are sent in clear text






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






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






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






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






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






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






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






20. 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






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






22. Uses MD5 challange/response






23. 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






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






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






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. Physical layer international standard for serial communication






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






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






30. 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






31. 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






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






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






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






35. Method for encapsulating datagrams over serial links






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






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






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






39. 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)






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






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






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






43. WAN stands for?






44. No authentication






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






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






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






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






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






50. Write the commands to configure s0 to PPP encapsulation







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