Carelon Global Solutions Interview Questions, Process, and Tips

Q1. Dense rank and row number differenxw
Ans. 
Difference between dense rank and row number
• Dense rank assigns the same rank to ties, while row number assigns a unique rank to each row

• Dense rank skips ranks when there are ties, while row number does not

• Dense rank is used to calculate percentiles, while row number is used for pagination
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Q2. Sql and nosql diff? Python functions
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Assesment

Q1. Self and other communication skills
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Q1. Cobol DB2 VSAM all basic questions
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Q2. DB2 queries from Google
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Q1. Reflextions concept in c# ?
Ans. 
Reflections in C# allow for runtime inspection and modification of types, objects, and assemblies.
• Reflections can be used to dynamically load assemblies and types at runtime.

• Reflections can be used to inspect and modify properties, fields, and methods of objects.

• Reflections can be used to create new instances of types and invoke their methods.

• Reflections can be used to generate code dynamically using System.Reflection....read more
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Q2. How to implemented dependency injection in ur projects ?
Ans. 
Dependency injection is implemented by creating interfaces for dependencies and injecting them into the class constructor.
• Identify dependencies and create interfaces for them

• Create a class constructor that accepts the interfaces as parameters

• Use a dependency injection framework like Spring or Guice

• Avoid using static methods or singletons to access dependencies
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Q3. Exception handling in realtime ?
Ans. 
Realtime exception handling requires quick identification, logging, and resolution of errors.
• Use try-catch blocks to handle exceptions in real-time

• Log exceptions with detailed information to aid in debugging

• Implement automated error reporting to quickly identify and resolve issues

• Use monitoring tools to detect and alert on errors in real-time

• Ensure error messages are clear and actionable for developers and end-users
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Q4. What is O-Auth ? Which type of authentication/security used in ur project ?
Ans. 
O-Auth is an open standard for authorization. Our project uses token-based authentication for security.
• O-Auth is used to allow users to grant access to their resources without sharing their credentials.

• It uses tokens for authentication instead of passwords.

• Our project uses token-based authentication for security purposes.

• Token-based authentication involves generating a unique token for each user that is used to authent
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Q5. State management techniques in realtime ? How to use them??
Ans. 
Realtime state management techniques include WebSockets, Server-Sent Events, and GraphQL Subscriptions.
• WebSockets allow bidirectional communication between client and server, enabling real-time updates.

• Server-Sent Events allow the server to push updates to the client without the client having to request them.

• GraphQL Subscriptions allow clients to subscribe to specific data and receive updates when that data changes.

• Oth...read more
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Q6. What is tuple? In c#
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Tuple is an ordered set of values of different types in C#.
• Tuples are immutable and can be used to return multiple values from a method.

• Tuple can be created using the Tuple class or by using the tuple syntax.

• Example: Tuple tuple = new Tuple(1, "hello");

• Example: var tuple = (1, "hello");

• Tuple elements can be accessed using Item1, Item2, etc. properties or by deconstructing the tuple.

• Example: in...read more
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