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 PPP protocol provides link establishment?






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






3. Bit-oriented Data Link layer protocol






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






5. Less secure; Passwords are sent in clear text






6. Method of establishing and configuring different Network layer protocols






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






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






9. Physical layer international standard for serial communication






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






11. Which is true regarding HDLC?






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






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






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






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






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






17. Method for encapsulating datagrams over serial links






18. What are the two PPP authentication methods?






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






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






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






22. What does PPP mean?






23. 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






24. 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






25. HDLC stands for what?






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






27. 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






28. 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






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






30. WAN stands for?






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






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






33. 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






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






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






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






37. What are the PPP Data Link protocols?






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






39. One bit at a time over a single channel






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






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






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






43. 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






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






45. What are common Data Link WAN encapsulations?






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






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






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






49. Uses MD5 challange/response






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