If the following are using default subnet masks, the option that are valid node ip addresses is option b) 10.10.0.10.
10.254 and 10.10. 0.1 is known to be a node that are said to be part of the same network.
Note that the first address of any network is seen as the the "network ID" address of the said network. So, if you are known to be using a kind of 24 networks, one of the real available networks is one that originate from 10.0.
Therefore, If the following are using default subnet masks, the option that are valid node ip addresses is option b) 10.10.0.10.
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