Which layer of the OSI model corresponds to IP or Logical?

Prepare for the Cisco Networking Essentials (25B) Exam. Access interactive questions and detailed explanations to boost your confidence and knowledge. Ace your exam today!

The correct answer is Layer 3, which corresponds to the Network layer of the OSI model. This layer is responsible for logical addressing and routing of data packets between devices across different networks. The Internet Protocol (IP) operates at this layer, providing the necessary mechanisms for addressing and directing data to traverse diverse networks and reach its destination.

Layer 3's key functions include packet forwarding, routing, and handling the logical addressing (such as IP addresses) required for identifying devices and managing their communications over the network. By utilizing routing protocols at this layer, devices can determine the best paths for data transmission, enabling efficient communication across interconnected networks.

In contrast, Layer 1 pertains to the Physical layer, which deals with the actual physical connections, binary transmission, and hardware involved in communications. Layer 2 is the Data Link layer, focusing on node-to-node data transfer and error detection and correction. Layer 4 refers to the Transport layer, which is responsible for end-to-end communication, throughput, and error recovery between devices, typically utilizing protocols like TCP and UDP. Each of these layers has distinct functionalities, but it is Layer 3 that governs the critical aspects of IP addressing and routing within the OSI model.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy