101 Layer Practice Questions
The free 101: Application Delivery Fundamentals questions that deal with layer, with answers and explanations. The full bank and the timed practice test cover every topic the exam asks about.
Question #5
What are the two primary functions of the OSI 7 layer model (Choose two)
Select 2 answers.
Correct answer: A, C
Explanation
The OSI reference model groups communications functions into logical layers so that products from different vendors can interoperate. It is a reference framework rather than a protocol specification or a host-to-host standard.
Question #9
Which OSI layer provides reliable transmission of frames between adjacent nodes and is built on top of the Physical layer?
Correct answer: A
Explanation
The Data Link layer sits directly above the Physical layer and handles framing and reliable frame delivery between adjacent nodes; the Transport layer provides end-to-end reliability, not hop-to-hop.
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