Tag: architecture

Questions Related to architecture

Example of Decorator pattern in Java API?
technology architecture

  1. java.util.List

  2. java.lang.String

  3. java.io.BufferedInputStream.

  4. None of the above.

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Correct Option: C

The -------------- Method pattern should be used to implement the invariant parts of an algorithm once and leaves it up to subclasses to implement the behavior that can vary
technology architecture

  1. Strategy Pattern.

  2. Template Pattern.

  3. Observer Pattern.

  4. None of the above.

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Correct Option: B

The Java API uses this pattern in the event model of its AWT/Swing Classes
technology architecture

  1. Strategy Pattern.

  2. Template Pattern.

  3. Observer pattern.

  4. None of the above.

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Correct Option: C

Which pattern prescribes recursive composition for complex objects?
technology architecture

  1. Composite Pattern

  2. Strategy Pattern

  3. Observer Pattern

  4. Factory Pattern

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Correct Option: A

Which pattern is used to allow different implementations of an algorithm or operation to be selected dynamically at runtime?
technology architecture

  1. Façade Pattern.

  2. Adapter Pattern

  3. Strategy Pattern.

  4. Factory pattern.

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Correct Option: C

Which Pattern is used when it must be decided at run time which one of the several compatible classes is to be instantiated?[
technology architecture

  1. Singleton Pattern

  2. Façade Pattern.

  3. Factory Pattern.

  4. Adapter Pattern.

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Correct Option: C

What Modifier needs to be added in order to make the below function as Singleton Class? ----------- -------- Connection getConnection() throws Exception{ return new Connection(); }

technology architecture

  1. private, final.

  2. protected, static

  3. public, static

  4. public, final.

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Correct Option: C

Suppose I have to code a program to draw 1000 circles with 6 different colors – Which Structural Pattern approach would help?

technology architecture

  1. Façade.

  2. FlyWeight.

  3. Decorator.

  4. Adpater

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Correct Option: B

Which Behavioral Pattern would help in parsing and translate a Specific Expression?

technology architecture

  1. Command

  2. Interpreter

  3. Observer

  4. Iterator.

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Correct Option: B

Which Behavioral Pattern move through a list of collection or aggregated objects without knowing its internal representations?
technology architecture

  1. Command

  2. Interpreter

  3. Mediator.

  4. Iterator.

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Correct Option: D