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






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






3. Method for encapsulating datagrams over serial links






4. 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






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






6. 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)






7. 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






8. Uses MD5 challange/response






9. WAN stands for?






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






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






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






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






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






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






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






17. Less secure; Passwords are sent in clear text






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






19. What are the PPP Data Link protocols?






20. What are the two PPP authentication methods?






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






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






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






24. What does PPP mean?






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






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






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






28. 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






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






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. Method of establishing and configuring different Network layer protocols






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






33. Physical layer international standard for serial communication






34. Which is true regarding HDLC?






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






36. 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






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






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






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






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






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






42. Which PPP protocol provides link establishment?






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






44. Bit-oriented Data Link layer protocol






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






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






47. 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






48. One bit at a time over a single channel






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






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