a) Explain the difference between connectionless and connection-oriented services.        b) Break the class C address 216.21.5.0/24 into five (5) subnets.                                                                                                                        c) Why is there no need for CSMA/CD on a full-duplex Ethernet LAN?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Question 4

  1. a) Explain the difference between connectionless and connection-oriented services.

      

  1. b) Break the class C address 216.21.5.0/24 into five (5) subnets.

                                                                                                                      

  1. c) Why is there no need for CSMA/CD on a full-duplex Ethernet LAN?

                                                                                                                     

  1. d) What is the responsibility of the MAC sublayer.

                                                                                                                     

  1. e) List the layers of the Internet model

Question 5

  1. a) Performance is inversely related to delay. When you use the Internet, which of the

following applications are more sensitive to delay, explain your answer.

  1. Sending an e-mail
  2. Copying a file

iii. Surfing the Internet                                                       

       

  1. b) Draw a hybrid topology with a star backbone and three ring networks.

                                                                                                          

  1. c) A power of a signal is 10 watts and the power of noise is 1 microwatts.
  2. What is the SNR (signal-to-noise ratio)?
  3. What is the SNR in decibel (dB)
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