There is no hard and fast rule on oracle that you have to do things by this way only. As Jeff suggested, OFA is the best bet to undestand how oracle would start placing things be default. To have more idea on the mount points just refer the installation maual for your platform of choice.
Other than that of backupup, analyzing and etc depends on your shops requirements. There are a number of backup startegies available under technet.oracle.com.
To give you more information, it would be good if you could say what you are looking for. Since your question was wague, it is really hard to speak in each and every prospective point of views. The best way would be, that you tell us what kind of issues that you are looking for and then we can try to come up with exploring the topics.
Try to disect your issues into multiple parts and ask the questions on them one by one in an orderly manner. That would help you to u.stand each area in detail and you can have it as a reference too.
Originally posted by jlakhani Oracle should be standard thruout company.l
I disagree. Each and every database has different requirements as to the volume of data, update frequency, time to recover, etc., etc. Without more specifics, the answer is "It Depends."
In a heavy OLTP shop where a large percentage of the data changes daily, an analyze every night would not be unreasonable. In an OLTP shop where only a small percentage of the data changes on a daily basis, analyzing once a week may be sufficient.
I prefer that all production OLTP database be backed up at least once a day. DW should be backed up after the data changes.