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Data independence
The data structure is a separate entity
... from the software which is used to manage it
Data redundancy
Attributes/fields are duplicated in the database
... this increases the storage requirements/can lead to data inconsistency
marlinbito answered the question on July 2, 2018 at 07:49
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Identify two benefits of a command line interface
Date posted: July 2, 2018. Answers (1)
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One type of user interface is a command line interface. Describe the main features of a command line interface.
Date posted: July 2, 2018. Answers (1)
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Describe how an information system is developed using RAD.
(Solved)
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Describe how an information system is developed using RAD.
Date posted: July 2, 2018. Answers (1)
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The hospital plans to use an expert system to help diagnose illnesses.One component of the expert system will contain the knowledge and rules to be used.
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Date posted: July 2, 2018. Answers (1)
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secure.
Data encryption
Access rights(Solved)
Explain how each of the following could be used to keep data about patients
secure.
Data encryption
Access rights
Date posted: July 2, 2018. Answers (1)
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The hospital uses a centralised database.
Describe the main features of a centralised database.(Solved)
A hospital makes extensive use of ICT.
The hospital uses a centralised database.
Describe the main features of a centralised database.
Date posted: July 2, 2018. Answers (1)
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Describe two advantages of using RFID instead of bar codes to identify aircraft parts.
Date posted: July 2, 2018. Answers (1)
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(Solved)
RFID is used to identify aircraft parts. Describe the main features of RFID.
Date posted: July 2, 2018. Answers (1)
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Describe the main features of a typical browser.
Date posted: July 2, 2018. Answers (1)
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Explain how...(Solved)
A Job Centre has a number of interactive terminals. Members of the public use a search engine to find jobs on the Internet.
Explain how a search engine is used.
Date posted: July 2, 2018. Answers (1)
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Identify three different types of internal memory and describe how each is used
Date posted: July 2, 2018. Answers (1)
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Data can be processed using batch processing. Describe the main features of batch processing.
Date posted: July 2, 2018. Answers (1)
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Describe two benefits of using OCR to capture data
Date posted: July 2, 2018. Answers (1)
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A scanner is used to input a text document. Describe the main features of Optical Character Recognition (OCR).
Date posted: July 2, 2018. Answers (1)
- Organisations are making increasing use of cloud computing.
In cloud computing, data is stored on a global network of servers using the Internet.
Write a...(Solved)
Organisations are making increasing use of cloud computing.
In cloud computing, data is stored on a global network of servers using the Internet.
Write a report evaluating
• The ICT resources required by an organisation for cloud computing
• The impact of Data Protection legislation for an organisation using cloud computing
Date posted: July 2, 2018. Answers (1)
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Date posted: July 2, 2018. Answers (1)
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Describe the main features of an interactive DVD which make it suitable for training users
Date posted: July 1, 2018. Answers (1)
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Date posted: July 1, 2018. Answers (1)
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Name and describe two psychological factors which can influence how humans interact with a computer.
Date posted: July 1, 2018. Answers (1)
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Describe one method of ensuring that data transmitted over a network is secure.
Date posted: July 1, 2018. Answers (1)