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






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






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






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






5. What are common Data Link WAN encapsulations?






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






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






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






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






10. 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






11. 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






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






13. Less secure; Passwords are sent in clear text






14. 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






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






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






17. 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






18. One bit at a time over a single channel






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






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






21. Physical layer international standard for serial communication






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






23. 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






24. Which PPP protocol provides link establishment?






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






26. 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)






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






28. HDLC stands for what?






29. 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






30. Proprietary






31. Nonproprietary






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






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






34. What are the two PPP authentication methods?






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






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






37. Which is true regarding HDLC?






38. What does PPP mean?






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






40. Method of establishing and configuring different Network layer protocols






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






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






43. No authentication






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






45. 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






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






47. 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






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






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






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