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Explain Asynchronous transfer mode (ATM) service categories
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The following service categories have been defined by Asynchronous transfer mode:

1) Real-time service:

  • Constant bit rate (CBR)
  • Real-time variable bit rate (rt-VBR)

2) Non-real-time service:

  • Non-real-time variable bit rate (nrt-VBR)

  • Available bit rate (ABR)

  • Unspecified bit rate (UBR)

  • Guaranteed frame rate (GFR)

1) Real-time service: Real-time applications typically involve …

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