Question: QUESTION 2 1 The functionality of synchronization, checkpointing and recovery of data exchange in the ISO / OSI reference model is implemented at A .

QUESTION 21
The functionality of synchronization, checkpointing and recovery of data exchange in the ISO/OSI reference model is implemented at
A. Application Layer
B. Transport Layer
C. Presentation Layer
D. Session Layer
QUESTION 21 The functionality of synchronization, checkpointing and recovery of data

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