COMPAI Review Quiz

A Data Flow Diagram (DFD) is a graphical representation of the flow of data through a system.

• True

• False

A DFD only shows the inputs and outputs of a system, and does not provide information on how data is processed within the system.

• True

• False

The highest level of a DFD represents the most detailed level of the system.

• True

• False

In a DFD, a data store represents a temporary storage location for data that is processed and then immediately discarded.

• True

• False

A DFD is a static representation of a system, and does not show how the system behaves over time.

• True

• False

Which of the following is an example of an input control?

• Data encryption

• Password authentication

• Data validation

• System backups

Which of the following is an example of a processing control?

• Audit trails

• Segregation of duties

• Error correction procedures

• Data backups

Which of the following is an example of an output control?

• Digital signatures

• Firewalls

• Physical access controls

• Intrusion detection systems

Which type of control is designed to prevent unauthorized access to a system or its data?

• Input control

• Processing control

• Output control

• Access control

Which type of control is designed to ensure that data is not lost or corrupted during processing?

• Input control

• Processing control

• Output control

• Backup control