Common faults of file system data repositories

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What is meant by structural dependence?

A condition where data access is unaffected by changes in physical data storage

A situation where data representation and manipulation depend on the physical data storage characteristics

A data characteristic where changes in the database schema do not affect data access

A data characteristic where a change in the database schema affects data access, requiring changes in all access programs (correct)

What does 'extensive programming' refer to in the context of a file system data repository?

The process of implementing data independence in a file system

The complexity involved in data sharing and security in a file system

The effort required to maintain structural dependence in a file system

The difficulty in making changes to an existing file structure (correct)

Which of the following best describes structural independence?

A condition where data access is dependent on the physical data storage characteristics

A data characteristic where changes in the database schema affect data access, requiring changes in all access programs

A data characteristic where a change in the database schema does not affect data access (correct)

A situation where data representation and manipulation are independent of the physical data storage characteristics

What is meant by data dependence?

A data condition in which data representation and manipulation are dependent on the physical data storage characteristics (D) Signup and view all the answers

What is the primary advantage of structural independence over structural dependence?

Ease of making changes to the existing file structure without extensive programming (A) Signup and view all the answers

Which of the following best describes data independence?

A condition in which data access is unaffected by changes in the physical data storage characteristics (D) Signup and view all the answers

What is a data anomaly?

A situation where inconsistent changes have been made to a database (D) Signup and view all the answers

What is a common cause of data-entry errors?

Complex entries made in several different files or recurring frequently in one or more files (A) Signup and view all the answers

What is an example of a data integrity problem?

Entering a nonexistent sales agent's name and phone number into the Customer file (B) Signup and view all the answers

What is structural independence?

The ability to change the database structure without changing the application programs that access the data (D) Signup and view all the answers

What is data dependence?

The inability to change the database structure without changing the application programs that access the data (B) Signup and view all the answers

What is data independence?

The ability to change data without changing the application programs that access the data (A) Signup and view all the answers

What is the primary role of a Database Management System (DBMS)?

To manage the database structure and control access to data (D) Signup and view all the answers

Which of the following is NOT an advantage of using a DBMS?

Extensive programming required (A) Signup and view all the answers

What is structural independence in the context of a DBMS?

The ability to change the database structure without affecting the application programs (D) Signup and view all the answers

What is data independence in the context of a DBMS?

The ability to change the data without affecting the database structure or application programs (B) Signup and view all the answers

What is the difference between data and information in the context of a database?

Data is raw facts, and information is the result of processing raw data (A) Signup and view all the answers

What is the primary function of metadata in a database?

To manage and integrate end-user data (D) Signup and view all the answers