Technology Questions

Q:

When do you use :: Operator in C++?

Answer

:: is the scope resolution operator. When local variable and global variable are having same name, local variable gets the priority. C++ allows flexibility of accessing both the variables through a scope resolution operator

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Subject: Java

0 1838
Q:

Which method is used to draw an image on the canvas?

Answer

drawImage(image,x,y) method is used to draw an image on the canvas.

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Subject: Web Technology

0 1837
Q:

What do you know about Intents?

Answer

- Notification messages to the user from an Android enabled device can be displayed using Intents.


- There are two types of Intents - Explicit Intent, Implicit Intent.


 


Implicit Intent:


- In case of Implicit Intent, an intent is just declared. 


- It is for the platform to find an activity that can respond to it.


- Since the target component is not declared, it is used for activating components of other applications.


 


Explicit Intent


- Explicit intent specifies the particular activity that should respond to the intent. 


- They are used for application internal messages.

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0 1826
Q:

What is the function of an intent filter?

Answer

Because every component needs to indicate which intents they can respond to, intent filters are used to filter out intents that these components are willing to receive. One or more intent filters are possible, depending on the services and activities that is going to make use of it.

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0 1812
Q:

How would you go about increasing the buffer cache hit ratio?

Answer

Use the buffer cache advisory over a given workload and then query the v$db_cache_advice table. If a change was necessary then I would use the alter system set db_cache_size command.

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46 1809
Q:

How to select more than one option from list in android xml file? Give an example.

Answer

Specify android id, layout height and width as depicted in the following example.


<ListView android:id="@+id/ListView01" android:layout_height="wrap_content" android:layout_width="fill_parent"></ListView>

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0 1803
Q:

Just by seeing the signature of the bean how can you specity whether it is a Statefull of Stateless Session Bean?

Answer

The create method in a stateless bean cannot have arguments, and can only have a single method called create(). While create in Stateful bean can have arguments and could be any method starting with create string eg. create(arg1, arg2, ...). Although it is not compiler checked but in stateless bean the ejb Passivate() and ejb Active() methods has to be empty as these functions are never called by EJB container. As conceptually in stateful session bean we might need to store the clients information hence arguments in createare necessary. While in stateless bean we don't hence no arguments are necessary. It's intutive isn't intutive isn't. I my life I haven't seen such a futuristic server programming tool as EJB.

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Subject: Java

1 1797
Q:

Which best describes the practice of outsourcing?

Answer

 


In business, outsourcing is an agreement in which one company contracts its own internal activity to different company. It involves the contracting out of a business process (e.g. payroll processing, claims processing) and operational, and/or non-core functions (e.g. manufacturing, facility management, call center support) to another party (see also business process outsourcing).


 


A company moves some of its jobs to another country and employing workers in other countries to save on labor costs best describes the practice of outsourcing.

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Subject: Business Intelligence Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

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