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. 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






2. 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






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






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






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






6. What are common Data Link WAN encapsulations?






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






8. 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






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






10. Method of establishing and configuring different Network layer protocols






11. What does PPP mean?






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






13. Which PPP protocol provides link establishment?






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






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. Nonproprietary






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






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






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






20. 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






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






22. 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)






23. 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






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






25. HDLC stands for what?






26. Method for encapsulating datagrams over serial links






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






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






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






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






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






32. One bit at a time over a single channel






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






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






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






36. Uses MD5 challange/response






37. No authentication






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






39. Less secure; Passwords are sent in clear text






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






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






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






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 are the PPP Data Link protocols?






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






46. 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






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






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






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






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