Question 10 -/2 The first step in the database design process is the conceptual model design. 0 True False Question 11 -12 -12 The database schema changes every time the database is updated with new data True False Question 12 -12 -/2 According to the referential integrity, the value of the foreign key in a referencing relation (table) R1 either occurs as a value of the primary key in the referenced relation (table) R2 or is NULL True False Question 13 -12 The actual data stored in a database at a particular moment in time is the schema of the database True False