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






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






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






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






5. 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






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






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






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






9. 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






10. 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)






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






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






13. Uses MD5 challange/response






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






15. One bit at a time over a single channel






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






17. WAN stands for?






18. Nonproprietary






19. Proprietary






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






21. 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






22. Which is true regarding HDLC?






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






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






25. Physical layer international standard for serial communication






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






27. Bit-oriented Data Link layer protocol






28. HDLC stands for what?






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






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






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






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






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






34. 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






35. Less secure; Passwords are sent in clear text






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






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






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






39. No authentication






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






41. What does PPP mean?






42. Method for encapsulating datagrams over serial links






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






44. 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






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






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






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






48. What are the PPP Data Link protocols?






49. 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






50. 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