Annex D TOP Exam Guide Questions and CORRECT Answers
Circuit Switching - the process of setting up and keeping open a physical circuit between two or more users until the connection is terminated Advantages of Circuit Switching - no congestion, exclusive use of the bandwidth, no channel access delay, low variance and end to end delay Disadvantages of Circuit Switching - expensive, slight delay in getting a connection Purpose of a Switchboard - provide the capability to connect one telephone line to any other telephone line within in a network Trunk Circuit - communication line between two switching systems, when a call is placed across a trunk
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