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






2. 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






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






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






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






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






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






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






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






10. What are common Data Link WAN encapsulations?






11. Physical layer international standard for serial communication






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






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






14. Nonproprietary






15. 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






16. What does PPP mean?






17. WAN stands for?






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






19. 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






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






21. Method for encapsulating datagrams over serial links






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






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






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






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






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






27. Bit-oriented Data Link layer protocol






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






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






30. Proprietary






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






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






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






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






35. 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)






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






37. HDLC stands for what?






38. Write the commands to configure s0 to PPP encapsulation






39. 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






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






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






42. Which PPP protocol provides link establishment?






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






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






45. 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






46. 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






47. What are the PPP Data Link protocols?






48. 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






49. No authentication






50. Less secure; Passwords are sent in clear text