Emergency Nurse Practitioner (ENP) Practice Test

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Switching systems that provide traffic concentration and distribute functions for interLATA traffic originating/terminating within LATA is

  1. Access tandem

  2. class of service

  3. CAMA

  4. ESRK

The correct answer is: Access tandem

The correct answer is A Access tandem. An access tandem is a switch that connects local exchange carriers (LECs) to interexchange carriers (IXCs) for interLATA (long distance) traffic. This switch helps to distribute interLATA traffic within the LATA (local access and transport area). Option B, class of service, is a term used to describe the quality or level of service provided by a telecommunications carrier. Option C, CAMA, stands for central automatic message accounting and is a system used for billing and monitoring calls made through a central office. Option D, ESRK, is not a term or technology used in telecommunications.