DNS cache timeout value

In a normal DNS server setup on Win 2K3, how much is the DNS cache-time out …. In other words, for how long does it keep the entry in its cache so that it doesnt have to go to any other DNS server (root server or ISP server), etc ?

yes the amount of bandwidth used over the Internet connection is considerably less and the processing load on the internal name server is minimized as well by using the ISP

Of course, if the forwarder doesn’t respond within the timeout configured, the server can either try another forwarder (if configured) or use root hints (if available) or give up and return an error.
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