In the ISO/OSI 7 layers networking model, which of the following functions are provided for the 'network layer'? (the number of correct answers: 2)

In the ISO/OSI 7 layers networking model, which of the following functions are provided for the ‘network layer’? (the number of correct answers: 2)

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In the ISO/OSI 7 layers networking model, which of the following functions are provided for the ‘network layer’? (the number of correct answers: 2)
A . Routing
B . congestion handling
C . end to end reliable and transparent data transition
D . physical connection

Answer: A,B