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






2. What are the PPP Data Link protocols?






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






4. Method of establishing - configuring - maintaining - and terminating the point-to-point connection






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






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






7. Which PPP protocol provides link establishment?






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






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






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






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






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






13. 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)






14. Less secure; Passwords are sent in clear text






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






16. 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






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






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






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






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






21. What are common Data Link WAN encapsulations?






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






23. 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






24. Bit-oriented Data Link layer protocol






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






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






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






28. One bit at a time over a single channel






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






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






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






32. Nonproprietary






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






34. What are the two PPP authentication methods?






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






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






37. 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






38. Method of establishing and configuring different Network layer protocols






39. What does PPP mean?






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






41. Uses MD5 challange/response






42. 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






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






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






46. 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






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






48. Method for encapsulating datagrams over serial links






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






50. Write the commands to configure s0 to PPP encapsulation