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






2. Less secure; Passwords are sent in clear text






3. WAN stands for?






4. 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






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






6. Uses MD5 challange/response






7. Which is true regarding HDLC?






8. What are common Data Link WAN encapsulations?






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






10. Bit-oriented Data Link layer protocol






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






12. What are the two PPP authentication methods?






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






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






15. No authentication






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






17. 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






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






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






20. One bit at a time over a single channel






21. Write the commands to configure s0 to PPP encapsulation






22. 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)






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






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






25. 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






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






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






28. 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






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






30. Which PPP protocol provides link establishment?






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






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






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






34. Proprietary






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






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






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






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






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






40. Physical layer international standard for serial communication






41. What are the PPP Data Link protocols?






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






43. 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






44. Method of establishing and configuring different Network layer protocols






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






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






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






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






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






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