Interview Questions

Q:

Define and explain COM?

Answer

COM is the component Object Model is a system whch creates application which are binary form that is language independent , object oriented ,modular and reusable .

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Q:

Name some of the common tables in CICS and their usage?

Answer

PCT (Program Control Table) - Defines each transaction containing a list of valid transaction identifiers (transid) where each transaction is paired with its matching program.


PPT (Program Processing Table) - Contains a list of valid program names and maps and whether a current version is in the CICS region or needs to be brought in as a new copy.


FCT (File Control Table) - Contains a list of files known to CICS, the dataset name and status (closed/open, enable/disabled)


TCT (Terminal Control Table)- A list of the terminals known to CICS.

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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:

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 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:

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:

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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