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






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






4. HDLC stands for what?






5. 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)






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






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






8. Method of establishing and configuring different Network layer protocols






9. Write the commands to configure s0 to PPP encapsulation






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. 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






12. 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






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






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






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






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






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






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






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






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






21. Bit-oriented Data Link layer protocol






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






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






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






25. No authentication






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






27. What are the two PPP authentication methods?






28. Nonproprietary






29. Proprietary






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






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






32. Less secure; Passwords are sent in clear text






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






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






35. Method for encapsulating datagrams over serial links






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






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






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






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






40. 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






41. 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






42. What are the PPP Data Link protocols?






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






44. Which is true regarding HDLC?






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






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






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






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






49. One bit at a time over a single channel






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