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






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






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






4. Less secure; Passwords are sent in clear text






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






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






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






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






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






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






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






12. What does PPP mean?






13. One bit at a time over a single channel






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






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






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






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






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






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






20. Which PPP protocol provides link establishment?






21. Bit-oriented Data Link layer protocol






22. 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






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






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






25. 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






26. Which is true regarding HDLC?






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






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






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






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






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






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






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






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






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






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






37. Uses MD5 challange/response






38. What are the two PPP authentication methods?






39. 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






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






41. HDLC stands for what?






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






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






44. 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






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






46. 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






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






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






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






50. Nonproprietary