How many 1 bits are present in the 4th byte of a C class mask that...

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How many 1 bits are present in the 4th byte of a C class mask that creates 16 subnets? 1 bit 2 bits 3 bits 4 bits In the 7 layers of the OSI layers contain PDU's with specific names. Which PDU is the largest in size and accommodates all data from all layers except layer 1? Bit Segment Frame Packet * How many 1 bits are present in the 4th byte of a C class mask that creates 16 subnets? 1 bit 2 bits 3 bits 4 bits In the 7 layers of the OSI layers contain PDU's with specific names. Which PDU is the largest in size and accommodates all data from all layers except layer 1? Bit Segment Frame Packet *