File Organization

What does a full system backup involve?

• Reading only selected files from the disk drive

• Writing data to a different storage device in a random order

• Writing the entire contents of the disk drive to a different storage device

• None of the above

How is the backup copy written back onto the hard disk in a full system backup?

• In reverse order of the backup process

• In the order requested by the user

• In the same order as it was written to the backup

• None of the above

What type of file organization did historic payroll systems typically use?

• Direct/Random access

• Serial access

• Sequential access

• None of the above

In historic payroll systems, how were files processed?

• • In reverse order of the employee ID

• In random order to increase efficiency

• One record after another, starting with the first record in the master file

• None of the above

What is a characteristic of real-time systems in terms of data access?

• They use random access for main memory data and direct access for files on secondary storage

• They utilize only sequential file access

• They prioritize batch processing for efficiency

• All of the above

Why does a real-time system use random access for data in main memory?

• To reduce memory usage

• To increase data retrieval speed

• To conserve power consumption

• None of the above

Which access method is used for files stored on secondary storage in a real-time system?

• Direct/Random access

• Direct/Random access

• Sequential access

In which system would direct access to specific records be most advantageous?

• Archiving systems

• Real-time systems

• Backup systems

• None of the above

Which file organization method is most suitable for archiving historical data that needs to be accessed in order?

• Sequential access

• Serial access

• • Direct/Random access

• All of the above

What is a primary advantage of using sequential access in archival systems?

• Allows for rapid retrieval of specific records

• Facilitates easy insertion and deletion of records

• Maintains the order of data as it was stored

• None of the above