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






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






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






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






5. What are common Data Link WAN encapsulations?






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






7. 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






8. 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






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






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






11. What is a good command to verify your serial interface on a router?






12. What are the PPP Data Link protocols?






13. 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






14. Nonproprietary






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






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






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






18. What does PPP mean?






19. One bit at a time over a single channel






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






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






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






23. WAN stands for?






24. Which is true regarding HDLC?






25. 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






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






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






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






29. What are the two PPP authentication methods?






30. Write the commands to configure s0 to PPP encapsulation






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






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






33. 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






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






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






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






37. HDLC stands for what?






38. Method of establishing and configuring different Network layer protocols






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






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






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






42. Physical layer international standard for serial communication






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






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






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






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






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






48. Less secure; Passwords are sent in clear text






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






50. 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)