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






2. HDLC stands for what?






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






4. Uses MD5 challange/response






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






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






7. One bit at a time over a single channel






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






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






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






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






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






13. What are the two PPP authentication methods?






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






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






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






17. 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






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






19. WAN stands for?






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






21. 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






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






23. Which is true regarding HDLC?






24. 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






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






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






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






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






30. Physical layer international standard for serial communication






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






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






33. Which PPP protocol provides link establishment?






34. 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






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






36. 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)






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






38. 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






39. Method for encapsulating datagrams over serial links






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






41. What does PPP mean?






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






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






44. Proprietary






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






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






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






48. 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






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






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