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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. Uses MD5 challange/response






2. Less secure; Passwords are sent in clear text






3. Which is true regarding HDLC?






4. 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






5. No authentication






6. One bit at a time over a single channel






7. 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






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






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






10. Which PPP protocol provides link establishment?






11. 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)






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






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






15. What does PPP mean?






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






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






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






19. What are the two PPP authentication methods?






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






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






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






23. 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






24. WAN stands for?






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






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






27. HDLC stands for what?






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






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






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






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






32. Which of the following are considered common Data Link WAN encapsulation types? (Choose three.)






33. Proprietary






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






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






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






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






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






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






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






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






42. 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






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






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






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






46. What are common Data Link WAN encapsulations?






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






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






49. Nonproprietary






50. 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







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