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Question

What is the difference between the version-oriented model and the change-oriented model of configurations in SCM tools?

a.

The version-oriented model uses physical changes as the basic unit of work, while the change-oriented model uses logical changes

b.

The version-oriented model uses logical changes as the basic unit of work, while the change-oriented model uses physical changes

c.

The version-oriented model uses numbers as the basic unit of work, while the change-oriented model uses changes as the basic unit of work

d.

The version-oriented model uses changes as the basic unit of work, while the change-oriented model uses numbers as the basic unit of work

Answer: (a).The version-oriented model uses physical changes as the basic unit of work, while the change-oriented model uses logical changes Explanation:The version-oriented model of configurations in SCM tools uses physical changes in a component as the basic unit of work. A new version is created every time a physical change is made to the component, and different versions are characterized by their differences. The change-oriented model, on the other hand, uses logical changes as the basic unit of work. A more intuitive way of working, this model identifies a configuration by some baseline plus a set of changes. The set of changes may be empty, and thus the configuration is identified by the baseline and the changes made to it. This model may prevent a lot of user errors when configuring a system.

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Q. What is the difference between the version-oriented model and the change-oriented model of configurations in SCM tools?