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






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






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






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






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






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






7. What does PPP mean?






8. What are the two PPP authentication methods?






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






10. 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






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






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






13. 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






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






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






16. One bit at a time over a single channel






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






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






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






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






21. 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






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






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






24. Proprietary






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






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






27. 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






28. Write the commands to configure s0 to PPP encapsulation






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






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






31. 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






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






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






34. Less secure; Passwords are sent in clear text






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






36. Uses MD5 challange/response






37. HDLC stands for what?






38. 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






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






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






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






42. What are the PPP Data Link protocols?






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






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






45. No authentication






46. 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






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






48. Nonproprietary






49. What are common Data Link WAN encapsulations?






50. 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