OPATCH NEEDS THE ORACLE_HOME ENVIRONMENT VARIABLE (THE WINDOWS REGISTRY VARIABLE IS NOT ENOUGH) AND A JRE

5. þ A and C. Opatch needs the ORACLE_HOME environment variable (the

Windows registry variable is not enough) and a JRE.

ý B and D. B is wrong because MetaLink is not needed to apply a patch,

only to download it. D is wrong because (in most cases) the database should

be shut down before applying patches.