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. 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






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






3. 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






4. 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






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






6. What are the two PPP authentication methods?






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






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






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






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






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






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






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






14. One bit at a time over a single channel






15. Bit-oriented Data Link layer protocol






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






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






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






19. 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






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






21. Uses MD5 challange/response






22. Method for encapsulating datagrams over serial links






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






24. WAN stands for?






25. Nonproprietary






26. 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)






27. 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






28. What does PPP mean?






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






30. Write the commands to configure s0 to PPP encapsulation






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






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






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






34. Which PPP protocol provides link establishment?






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






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






37. What are common Data Link WAN encapsulations?






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






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






40. Physical layer international standard for serial communication






41. Less secure; Passwords are sent in clear text






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






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






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






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






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






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






48. 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






49. 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






50. Which is true regarding HDLC?