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. Physical layer international standard for serial communication






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






3. Uses MD5 challange/response






4. 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






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






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






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






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. WAN stands for?






10. 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)






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






12. HDLC stands for what?






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






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






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






16. 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






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






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






19. Nonproprietary






20. What does PPP mean?






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






22. 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






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






24. 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






25. Write the commands to configure s0 to PPP encapsulation






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






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






28. No authentication






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






30. Which PPP protocol provides link establishment?






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






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






33. Less secure; Passwords are sent in clear text






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






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






36. 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






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






38. Method for encapsulating datagrams over serial links






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






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






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






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






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






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






45. Method of establishing and configuring different Network layer protocols






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






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






48. Which is true regarding HDLC?






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






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