Which Of the given figures represents a weak entity as used in Entity-Relationship (ER) diagrams?

A tablespace is divided into .

Consider a relation 'Book' with the following structure: book_id (Primary key) book_name book_title date_of_issue Which of the following relational algebra operations will return all the entries of book_id and book_title from the relation 'Book'?

The index in which the search key defines an order that is dissimilar from the sequential order of the file is known as index.

Which of the following statements is false?

A covert channel permits the transfer of information in such a way that it violates the system's security policy.

If b (an attribute) is functionally dependent on a, we can also say that ____.

Data that are never physically altered once they are added to the store are called ________ data.

An entity cluster is formed by combining multiple interrelated entities into ____.

A star schema contains both fact and ________ tables.

A ________ is the smallest component in the computer system data hierarchy.