Performance Question

I had a question regarding masters in the named.conf file and
performance.
If I have two masters for one of my zones, what are the steps that
happen if the first master (10.1.22.33) is offline. When the first
request come in to resolve something.ddnszone.com will it return a
failure and on the second try it will goto the second master
(10.1.99.11) on the list and get a response? And will my DNS server know
that the first server is dead and just continue going to the second
master or does it again try the first master.

I am running Solaris 10 and Bind 9.2.4

zone "ddnszone.com" in {
type stub;
file "db/ddnszone.ca";
masters { 10.1.22.33; 10.1.99.11; };

Thanks