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Which of the following are benefits of using a layered network model?

A . it specifies how changes to one layer must be propagated through the other layers

B . it facilitates troubleshooting

C . it focuses on details rather than general functions of networking

D . it breaks the complex process of networking into more manageable chunks

E . it allows layers developed by different vendors to inter-operate.

A and B only

all of the above

A and C only

B, D, and E

Explanation

1.1 OSI-TCPIP Models

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