DATA LINK LAYER WIRED NETWORKS
INTRODUCTION
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 Question 
 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
 
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 What are the frames issued by the secondary station of HDLC, known as? 
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  Link 
 
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  Command 
 
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  Response 
 
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  None of the above 
 
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 Explanation: 
Detailed explanation-1: -The secondary station’s frames are known as responses. It is used to deliver response frames when requested by the primary station. A primary station provides an independent logical connection with each secondary station. A combined station is a set of primary and secondary stations.
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