An active directory domain controller for the domain could not be contacted. true or false

True

Explanation:

Definition

To respond on security authentication request domain controller (DC) is used as a server along within a Windows Server domain.

It is used to authenticates users, stores user account information and enforces security policy.

The above mentioned error is true and occurs due to wrong IP or DNS settings on your computer, DNS mis-configuration on the domain controller side or with firewall ports blocking.

solution:

the right option is a

to adding   a new row to a table we   have to do process last table cell and pressing tab.

this is the process to add new row in the cell:

* to add a row below the cell, click insert below in the rows and columns group.

thus this is the required right answer.