What are the main differences between a workgroup and a domain?

The main differences are: escale (number of computer involved), level of security, location of computers and the presence of a network administrator.

Explanation:

A workgroup is a basic network infrastructure with slack security control and no central controlling administrative center, is the cheapest setup for a local in-house network, they usually involve less than 20 computers. In this kind of network all computers are peers, they have a set of user accounts and to log in you must have an account. All computers must be on the same local network or subnet.  A domain, on the other hand, is more complicated and suitable for large businesses with many computers like a university structure or the structure within the Microsoft Corporation, in a domain security and sharing of data is significantly bigger, network administrators use servers to control the security and permissions for all computers on the domain.  There can be thousands of computers in a domain and they can be on different local networks.

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The difference lies on how the network and resources are managed.

Explanation:

Computers on a network can be part of of work group or a domain. However, the two are different. This is seen in the following:

In a work group:

All computers are peers, no computer controls the other.each computer has different user accounts. no more than twenty computersall computers are on the same local area network

On the other hand, in a domain:

one or more computers are seversusers  need to have unique domainscan be hundreds and thousands  of computerscomputers are on different local networks