Interview Questions

Q:

Where does the exceptions are used?

A) Exceptions are used when postconditions of a function cannot be satisfied. B) Exceptions are used when postconditions of a function can be satisfied.
C) To preserve the program D) none of these
 
Answer & Explanation Answer: B) Exceptions are used when postconditions of a function can be satisfied.

Explanation:
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Q:

During processing of a VSAM file, some system error occurs and it is subsequently unusable What do you do?

Answer

Run VERIFY.

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Q:

Explain ADO.NET in brief.

Answer

ADO.NET is a very important feature of .NET Framework, which is used to work with data that is stored in structured data sources, such as databases and XML files. The following are some of the important features of ADO.NET:

 =>   Contains a number of classes that provide you with various methods and attributes to manage the communication between your application and data source.


 =>   Enables you to access different data sources, such as Microsoft SQL Server, and XML, as per your requirements.


 =>   Provides a rich set of features, such as connection and commands that can be used to develop robust and highly efficient data services in .NET applications.


 =>   Provides various data providers that are specific to databases produced by various vendors. For example, ADO.NET has a separate provider to access data from Oracle databases; whereas, another provider is used to access data from SQL databases.

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Subject: .NET

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Q:

What is meant by heap?

A) Used for fast reterival of elements B) Used for organising the elements
C) Both a & b D) None of the mentioned
 
Answer & Explanation Answer: C) Both a & b

Explanation:

A heap is a way to organize the elements of a range that allows for fast retrieval of the element.

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Q:

What are type safe function pointers?

A) Delegates B) Break points
C) Both A and B D) None
 
Answer & Explanation Answer: A) Delegates

Explanation:

A delegate declares a ref type that references a named of anonymous method. Delegates are secure and type-safe.

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Filed Under: .NET

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Q:

What is a data binding in AngularJS?

Answer

Data binding is an automatic synchronization of data between model and view components. ng-model directive is used in Data binding.

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Subject: Web Technology
Job Role: Software Architect

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Q:

Whar are the Difference between online and offline backups?

Answer

- Online backup is one which is taken at the time the database is running in the ARCHIVELOG mode.


- Following files should be backed up during the Offline Backup: All data file, all control file and all online redo log file. But in the case of the online backup following files is backed up: All data files all archived redo log files and one control file via the alter database command.


- Offline database we cannot rely upon but in case of online database no issues.


- Offline backup no archived mode is required but in the online backup it is must.

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Subject: Oracle

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Q:

What does an HTML tag do?

A) It specifies formatting and layout instructions for your web page B) It hides programming instructions from view
C) It determines the organizational structure of your Web site D) It connects your web site to an operating environment
 
Answer & Explanation Answer: A) It specifies formatting and layout instructions for your web page

Explanation:
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