What are the two primary functions of the OSI 7-layer model? (Choose two)

Grouping communications into logical layers is a foundational purpose of OSI - it separates concerns such as physical transmission, addressing, and application interaction so each can be developed and troubleshot independently.

Host-to-host communication is a characteristic of the Transport layer and is more precisely described by the TCP/IP model, not a primary stated purpose of the OSI model itself.

OSI does not standardize HTTP or any specific application-layer protocol - it provides a framework, and individual standards bodies define specific protocols within that framework.

While interoperability is a benefit of adopting OSI-aligned standards, it is a secondary outcome rather than a primary defined function of the model itself.

Defining protocol behavior is equally central - each OSI layer specifies how protocols must operate, what services they provide to the layer above, and what they expect from the layer below.