In this situation Network Layer may not be required. Data Link Layer can handle communication process.
If two devices are communicating from different networks then Network Layer a is must. In this situation Data Link Layer is not enough for completing the communication process as it lacks Routing ability which is the primary function of Network Layer.
distribution
usally Firewalls config for comunicate to another network Firewall located in edge of network,firewall is a roter or a pc with a special software.
That would be the network card or modem.
network
No, a simple home network can be configured to share data and devices without connecting to the internet.
A modem
deafult getway
Servers
Servers
distribution
default gateway
The following components required to meet a network specification. 1. The network devices like switch, router, cables and other all network devices.
usally Firewalls config for comunicate to another network Firewall located in edge of network,firewall is a roter or a pc with a special software.
network interface card
two
The minimum devices required to establish a network are at least two devices, such as computers or smartphones, that can communicate with each other. Additionally, a networking device like a router or switch is often necessary to facilitate this communication, especially in a more complex setup. In a very basic network, one device can connect directly to another using a cable, but a router is typically used for broader connectivity and access to the internet.
That would be the network card or modem.