Once a week.
every decade
In the United States it is the President's job to determine how often the cabinet meet. The President also determines when they will meet.
There is no set schedule for full cabinet meetings and the cabinet has become so large that full meetings are not likely to be very productive. Obama does not call a cabinet meeting very often. Individual secretaries meet with the president as is needed or when called in by the president.
yes- there is a cabinet meeting room in the White House. of course, cabinet member can also meet with the president on other occasions.
The Cabinet Room
There is a room in the White House that is designed for cabinet meetings.
Cabinet meetings are normally conducted every week
That depends on the Secretary and the President, Obama meets with his cabinet weekly and the meetings are increased when needed.
This is a leading question -- I have not read anything about conflicts in the President's cabinet. In past years, cabinet members have had disagreements for various reasons. Cabinets members used to meet more often so there was more opportunity for personality conflicts.
whenever the president determines that its necessary
Cabinet meetings take place in the White House, or at least did.
There is a Cabinet meeting room in the White House. President Obama very rarely meets with the entire cabinet.