Cambridge Technicals in IT - Unit 02 - LO3.6

What is an open system in the context of information systems?

• A system that operates independently of external influences.
• A system that interacts with its environment and exchanges data.
• A system used exclusively for internal data analysis.
• A system designed to prevent external data access.

Answer explanation

Open systems interact with their external environment and exchange data.

Which is a characteristic of a closed system?

• Operates without external interaction.
• Requires constant input from external sources.
• Adapts dynamically to environmental changes.
• Uses publicly available data.

Answer explanation

Closed systems are self-contained and do not interact with external environments.

What is a limitation of open systems?

• Lack of adaptability to external changes.
• Limited data interaction.
• Vulnerability to external security threats.
• Difficulty in sharing data externally.

Answer explanation

Open systems are vulnerable to external security threats because they interact with the environment.

Which of the following is a benefit of closed systems?

• High adaptability to external conditions.
• Greater security due to limited external interaction.
• Faster exchange of data with external systems.
• Compatibility with open-source data.

Answer explanation

Closed systems offer greater security due to limited external interactions.

How does an open system handle data?

• It limits data flow to internal processes.
• It only stores data without processing.
• It exchanges data freely with the external environment.
• It processes data but does not exchange it externally.

Answer explanation

Open systems exchange data freely with the external environment.

What type of system would a weather forecasting application represent?

• Closed system.
• Open system.
• Hybrid system.
• Static system.

Answer explanation

A weather forecasting application is an open system as it constantly interacts with external data sources.

In what scenario is a closed system most suitable?

• When data needs to be shared with multiple stakeholders.
• When strict confidentiality is required.
• When high adaptability is necessary.
• When dynamic input from the environment is needed.

Answer explanation

Closed systems are best for scenarios requiring strict confidentiality.

What is one challenge associated with closed systems?

• Increased risk of data breaches.
• Inability to adapt to external changes.
• Excessive dependence on external data sources.
• Unpredictable behaviour.

Answer explanation

Closed systems struggle to adapt to external changes due to their isolated nature.

Which characteristic is shared by open and closed systems?

• Both are completely isolated.
• Both interact freely with external systems.
• Both can be used to store and process data.
• Both require constant external input.

Answer explanation

Both open and closed systems can store and process data.

Which of the following describes an open system?

• It operates solely within a company’s network.
• It relies on user input for processing data.
• It communicates and exchanges data with external systems.
• It encrypts all outgoing data.

Answer explanation

Open systems interact and exchange data with external systems.