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 connect two DTE networks together through a DCE network






2. 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






3. 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






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






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






6. Method of establishing and configuring different Network layer protocols






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






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






9. 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)






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






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






12. Physical layer international standard for serial communication






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






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






15. 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






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






17. Method for encapsulating datagrams over serial links






18. 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






19. One bit at a time over a single channel






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






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






22. HDLC stands for what?






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






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






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






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






27. Which PPP protocol provides link establishment?






28. 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






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






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






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






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






33. 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






34. Proprietary






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






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






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






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






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






40. Nonproprietary






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






42. 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






43. Bit-oriented Data Link layer protocol






44. Which is true regarding HDLC?






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






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






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






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






49. 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






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