Technology Questions

Q:

When is the best time to kill a foreground activity?

Answer

The foreground activity, being the most important among the other states, is only killed or terminated as a last resort, especially if it is already consuming too much memory. When a memory paging state has been reach by a foreground activity, then it is killed so that the user interface can retain its responsiveness to the user.


 

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Q:

What are the prime responsibilities of Data Integration Administrator?

Answer

- Scheduling and executing the batch jobs.


- Configuring, starting and stopping the real-time services


- Adapters configuration and managing them.


- Repository usage, Job Server configuration.


- Access Server configuration.


- Batch job publishing.


- Real-time services publishing through web services.

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Q:

What is the return type of the main() method?

Answer Main() method doesn't return anything hence declared void.
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Subject: Java

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Q:

What do you mean by multiple inheritance in C++ ?

Answer

Multiple inheritance is a feature in C++ by which one class can be of different types. Say class teaching Assistant is inherited from two classes say teacher and Student.

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Subject: C++

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Q:

Why is the main() method declared static?

Answer

main() method is called by the JVM even before the instantiation of the class, hence it is declared as static.

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Subject: Java

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Q:

My SQL statement SELECT AVG(SALARY) FROM EMP yields inaccurate results. Why?

Answer

Because SALARY is not declared to have NULLs and the employees for whom the salary is not known are also counted.


 

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Q:

What is the primary function of the Web browsers?

Answer

- Web browser functions are to provide the resources or information to the user when asked by them. 


- It processes the user inputs in the form of URL like https://www.google.com in the browser and allows the access to that page. 


- URL is used to identify the resources and fetch them from the server and displays it to the client. 


- It allows the user to interact with the web pages and dynamic content like surveys, forms, etc. 


- It also allows the user to navigate through the complete web page and see its source code in the HTML format. 


- It provides security to the data and the resources that are available on the web that is by using the secure methods.

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Subject: Web Technology

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Q:

How do we Tune the BO Reports for Performance Improvement?

Answer

We can tune the report by using index awarness in universe

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