[Yum] more newbie questions about [server] sections in yum.conf

[Robert P. J. Day]

  some questions about the [server] sections in yum.conf, so i
can write it up as if i understand it (simple questions first):

0) it's potentially confusing to refer to these as "server" sections
   when, as i groused and whined before :-), they're really
   repository sections, no?  just being pedantic.

1) is the "gpgcheck" line mandatory?  from seth's previous posting
   listing the default settings, gpgcheck is not listed there.  if
   it doesn't have a default setting, is there a reason for this?
   just curious.

2) is there any value to the "name" value other than being human
   readable for public consumption?

3) what is the effect of having multiple [server] sections?  as i 
   read it, whenever i run a client-side yum operation, *all* servers
   will be consulted for potential, say, updates.  but suppose i add
   the freshrpms yum repo to my yum.conf, and i want to update *only*
   those RPMs for which newer versions exist at freshrpms.  AFAICT,
   i can't do that, even though it seems that this might be a useful
   feature (i might create repositories with a particular theme, like
   multimedia).  is there any way to do this, other than creating
   separate yum.conf files and using "-C" on the yum command line?



rday