Answer the following statements true (T) or false (F)

1. A query language provides a uniform interface to the database.
2. A single countermeasure is sufficient for SQLi attacks.
3. To create a relationship between two tables, the attributes that define the
primary key in one table must appear as attributes in another table, where they are referred to as a foreign key.
4. The value of a primary key must be unique for each tuple of its table.
5. A foreign key value can appear multiple times in a table.

1. True
2. False
3. True
4. True
5. True