Tag: architecture

Questions Related to architecture

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

If I need to access Multiple Data Sources like Legacy Systems, B2B, LDAP – Which of the below J2EE Pattern would suit?

technology architecture

  1. Data Access Object.

  2. MVC

  3. Business Delegate

  4. Service Locator.

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Correct Option: A

What is the name of the design pattern in which the data, the data presentation and the data controls are defined separately?
technology architecture

  1. Model-View-Controller.

  2. Publish-Subscribe.

  3. Observer-Observable.

  4. Reader-Writer.

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Correct Option: A

This Layer manages reading, writing, updating and deleting stored data?
technology architecture

  1. Value Objects Layer.

  2. Presentation Layer.

  3. Data access object layer.

  4. Deployment Layer.

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Correct Option: C

What is Persistence?
technology architecture

  1. The capability of an object to exist after the program that created it has stopped running.

  2. The ability of a class to support multiple threads.

  3. An Error-Handling technique.

  4. None of the above.

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Correct Option: A