Ocp Question

Hi,
i have some questions which i found in the sts but i am confuse about the answers.
i am writing these here. pls if any one know the reason behind the correct answers
rely ASAP as i am taking exam on 15th april. Q1- using server manager line mode, which three methods could you use to diplay the current location of the control files for the current instance
(choose three)

a: query v$parameter
b: query v$controlfile
c: use the describe command
d: use the show SGA command
e: query v$system_parameter
f: use the show parameter command

Q2- which view would you query to display the value assigned to the MAXDATAFLILES  parameter fo the PROD database

a:  v$database
b: v$datafiles
c: V$controlfiles
d: V$controlfile_record_section

Q3- when i am trying to use describe command for v$ view from SQL*PLUS i am geting this error
ORA-04043: object object_name doesnot exist. but i can able to select the data from the v$ views.

thank in adavance

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Before you buy. Received on Thu Apr 13 2000 - 00:00:00 CDT