Narayana Health Maintenance Engineer Interview Questions and Answers

Q1. Explain end to end automation cycle
Ans. 
End to end automation cycle involves automating the entire software development process from planning to deployment.
• The cycle starts with requirements gathering and planning

• Next, the code is developed and tested using automation tools

• Continuous integration and delivery are used to deploy the code to production

• Monitoring and feedback are used to improve the process

• Examples of automation tools include Jenkins, Selenium,
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Q1. Why do you want to join this company.
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Round duration - 60 minutes
Round difficulty - Medium

This was a technical Interview round with questions on C#, .NET and DBMS.

Q1. What is the difference between the Ref and Out keywords in C#?
Ans. 
Ref is used for passing arguments by reference, Out is used for returning multiple values.
• Ref keyword is used for passing arguments by reference, allowing the method to modify the original value.

• Out keyword is used for returning multiple values from a method, as it does not require the variable to be initialized before being passed.
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Q2. What is the difference between ViewData, ViewBag, and TempData in C#?
Ans. 
ViewData, ViewBag, and TempData are ways to pass data between controllers and views in ASP.NET MVC.
• ViewData is a dictionary object used to pass data from controller to view. It requires typecasting.

• ViewBag is a dynamic property used to pass data from controller to view. No typecasting is required.

• TempData is a dictionary object used to pass data from one controller to another or from one action to another.
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Q3. What is the difference between managed and unmanaged code in C#?
Ans. 
Managed code is executed by the CLR with memory management, while unmanaged code is executed directly by the operating system without memory management.
• Managed code is executed by the Common Language Runtime (CLR) in .NET framework.

• Unmanaged code is executed directly by the operating system without CLR.

• Managed code provides automatic memory management through garbage collection.

• Unmanaged code requires manual memory man...read more
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Q4. What are the different types of triggers in SQL Server?
Ans. 
Triggers in SQL Server are special types of stored procedures that are automatically executed when certain events occur in a database.
• Types of triggers include DML triggers (for INSERT, UPDATE, DELETE operations), DDL triggers (for CREATE, ALTER, DROP operations), and Logon triggers.

• Triggers can be set to fire before or after the triggering event.

• Examples of triggers include auditing changes to a table using an INSERT ...read more
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Q5. What are generic and non-generic collections in C#?
Ans. 
Generic collections in C# allow for type-safe collections, while non-generic collections do not enforce type safety.
• Generic collections use type parameters to specify the type of elements they can contain, ensuring type safety.

• Non-generic collections do not specify the type of elements they can contain, leading to potential runtime errors if incorrect types are used.

• Example of generic collection: List<string> nam...read more
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Round duration - 30 minutes
Round difficulty - Easy

This was a typical managerial round.