CompTIA ITF+ Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

In which layer of the OSI model does the IP protocol operate?

Physical layer

Application layer

Transport layer

Network layer

The IP protocol operates in the Network layer of the OSI model. This layer is responsible for routing data packets between devices across different networks. It handles logical addressing, enabling devices to send and receive data regardless of their location. The IP protocol plays a crucial role in determining the path that data takes from the source to the destination by using IP addresses.

The Network layer also facilitates the encapsulation of data from the Transport layer into packets, which are then transmitted over the underlying layers. This functionality is essential for network communication, as it ensures that devices can communicate effectively over both local and wide area networks. By managing routing, addressing, and packet forwarding, the Network layer ensures that data reaches its target efficiently and correctly.

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