A true consensus requires a unanimous agreement, commitment of all parties to defend the decision to outsiders, and satisfaction with the process used to make the decision and the degree of participation from all group members.

True

Explanation: Consensus is an opinion, decision or idea that is shared and agreed upon by all the members within a group. The decision must be unanimous i.e all the people in the group must agree after having deliberated. The process or system used in coming to said agreement must be satisfactory to all the members and participation in the discussions must be from all members.

This is different from the majority rule in which the agreement is binding once the number of people who agree is more than those that disagree. A true consensus ensures that all members can defend and stand by the decisions as the group as a whole came to the decision together after deliberations.

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.