When IPv4 is configured for a computer on a network, what does the subnet mask identify?

When IPv4 is configured for a computer on a network, what does the subnet mask identify?

• the dynamic subnetwork configuration
• the device that the computer uses to access another network
• the part of the IP address that identifies the network
• the pool of addresses assigned within the network

Explanation: The IP addressing system is a hierarchical addressing system. An IP address is made up of two parts: the network address and the host address. For IPv4, the subnet mask is used to identify which portion of an IPv4 address is the network address and which portion is the host address.

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