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Question 2Which of the following statements about coupling are true?1 pointCoupling measures the strength of connections between components.Loose coupling makes it unlikely that changes will be propogated across components.Shared variables and control information leads to tight coupling.Loose coupling is partly achieved through message passing.All of the above

Question

Question 2Which of the following statements about coupling are true?1 pointCoupling measures the strength of connections between components.Loose coupling makes it unlikely that changes will be propogated across components.Shared variables and control information leads to tight coupling.Loose coupling is partly achieved through message passing.All of the above

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Solution

All of the above statements about coupling are true.

  1. Coupling does measure the strength of connections between components. The more interdependent components are, the higher the coupling.

  2. Loose coupling does make it unlikely that changes will be propagated across components. This is because each component operates independently of the others.

  3. Shared variables and control information do lead to tight coupling. This is because changes to these shared elements can affect multiple components.

  4. Loose coupling is partly achieved through message passing. This allows components to communicate without being tightly linked.

So, the answer is "All of the above".

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Question 4The three types of tight coupling are:1 pointData; Message; NoneThere is no such thing as tight couplingControl; Data Structure; MessageContent; Common; External

The loosest type of coupling; components only communicate through parameters or message passing. This is an example of what type of coupling?1 pointLoose data couplingLoose no couplingLoose message coupling

Question 6Modules A and B both rely on global data or a global variable. This is an example of what type of coupling?1 pointTight content couplingTight external couplingTight common coupling

Question 3The goal in low coupling is to ensure that changes don't cross the boundaries of modules.1 pointTrueFalse

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