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Patten/Practices Interview Questions and Answers

You found a code of List which is slower in enumeration. How to make it faster? (Arch level)

Author: Jean Paul Posted Date: May 11, 2011 Category: Patten/Practices Points: 40

Use HashSet class.

What is Microkernel architectural pattern?

Author: Jean Paul Posted Date: May 11, 2011 Category: Patten/Practices Points: 40

Microkernel is a pattern where the core functionalities will be kept minimal and we will use extensible features to provide the additional functionalities.

It is recommended where an application will have different views or tends to change with time. This could be accomplished by keeping the core features unchanged.

Which is the design pattern that is type-safe and still extensible on runtime?

Author: Jean Paul Posted Date: May 04, 2011 Category: Patten/Practices Points: 40

Decorator Pattern design pattern that is type-safe and still extensible on runtime

You have got a base robot with all methods in steps of Start(), Perform(), Stop(). There are different kind of robots for creating Cookies, Sauce, Breads in a bakery. Only the Perform() method differs. Which design pattern should be appropriate for the scenario?

Author: Jean Paul Posted Date: May 01, 2011 Category: Patten/Practices Points: 40

Template Method design pattern.

You are having a printer class which the user has to call the following methods to get printing done
- OpenToner()
- CheckColor()
- IsColorValid()
- SetMargin()
- DoPrint()

Which design pattern you prefer for the above scenario?
-

Author: Jean Paul Posted Date: February 24, 2011 Category: Patten/Practices Points: 15

Facade

What is the latest version of WCSF?

Author: Jean Paul Posted Date: December 07, 2010 Category: Patten/Practices Points: 15

WCSF 2010

Which patterns/practices framework incorporates MVP?

Author: Jean Paul Posted Date: December 07, 2010 Category: Patten/Practices Points: 15

Web Client Software Factory

Which design pattern to use if i needed to add additional responsibilities at runtime?

Author: Jean Paul Posted Date: December 07, 2010 Category: Patten/Practices Points: 15

Decorator Pattern design pattern is use if i needed to add additional responsibilities at runtime

What is design pattern?

Author: Ramesh P Posted Date: October 31, 2010 Category: Patten/Practices Points: 10

Design pattern are recurring solution to the recurring problem.

There are basically classified in to three categories. They are,
1. Creational pattern
2. Structural pattern
3. Behavioural pattern.

You have got a complex object to create whose construction takes a long period. You have to create 1000 such objects but at the same time only one object is required. What should be the pattern to use?

Author: Jean Paul Posted Date: September 30, 2010 Category: Patten/Practices Points: 10

Pattern: Flyweight

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