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






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






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






4. Which is true regarding HDLC?






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






6. 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






7. 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






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






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






10. Less secure; Passwords are sent in clear text






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






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






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






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






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






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






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






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






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






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






21. What are common Data Link WAN encapsulations?






22. WAN stands for?






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






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






25. What are the PPP Data Link protocols?






26. 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






27. Bit-oriented Data Link layer protocol






28. 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






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






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






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






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






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






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






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






37. Uses MD5 challange/response






38. Nonproprietary






39. Write the commands to configure s0 to PPP encapsulation






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






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






42. 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






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






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






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






46. Method for encapsulating datagrams over serial links






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






48. 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






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






50. Physical layer international standard for serial communication