Oracle Cerner Senior Software Engineer Interview Questions and Answers

Q1. Understanding of HL7 file format, decoding the different segments, some questions on mumps programming language.
Add your answer

Q1. Questions were mostly on SQL and data migration.
Add your answer

It was more related to how to handle team culture and behavioral questions following STAR model.

Q1. 1. OOPS questions 2. SOLID and Design Pattern questions 3. Project explanation 4. Basic Pattern coding 5. Test question, UTest, ITest
Add your answer
Q2. Resume discussion and question from resume skill set.
Add your answer

Q1. 1. Design qestion. 2. Design pattern uses per use case.
Ans. 
Design patterns are used to solve common software design problems. Each use case requires a specific pattern.
• Design patterns are reusable solutions to common software design problems.

• Each use case requires a specific pattern to be used.

• Examples of design patterns include Singleton, Factory, and Observer.

• The choice of pattern depends on the problem being solved and the requirements of the system.
Answered by AI
Add your answer

Q1. Managerial round 1. Reason to switch. 2. Immediate joining 3. Conflict management with manager
Add your answer

Q1. Salary negotiation and joining date.
Add your answer

Interview process went two technical and one Manager round
it took one week tom complete entire process.

Q1. Explain your project
Ans. 
Developed a web application for tracking and managing inventory in real-time
• Implemented a user-friendly interface for adding, updating, and deleting inventory items

• Utilized RESTful APIs to communicate with backend database for seamless data retrieval and storage

• Incorporated barcode scanning functionality for quick and accurate inventory management
Answered by AI
Add your answer
Q2. Write singleton pattern
Ans. 
Singleton pattern ensures a class has only one instance and provides a global point of access to it.
• Create a private static instance variable of the class

• Make the constructor private to prevent instantiation from outside the class

• Provide a static method to access the instance, creating it if necessary
Answered by AI
Add your answer
Q3. Handle thread safety in singleton pattern
Ans. 
Use synchronized block or double-checked locking to ensure only one thread can access singleton instance at a time.
• Use synchronized block to ensure thread safety in getInstance() method

• Implement double-checked locking to minimize synchronization overhead

• Consider using Enum singleton for thread safety without synchronization
Answered by AI
Add your answer
Q4. What is a delegate? Write a syntax
Ans. 
A delegate is a type that represents references to methods with a specific parameter list and return type.
• Delegates are similar to function pointers in C++ or pointers to member functions in C++.

• Delegates are used to pass methods as arguments to other methods.

• Delegates can be used to define callback methods.

• Syntax: delegate return_type delegate_name(parameter_list);
Answered by AI
Add your answer
Q5. What is event ? Write a sample event
Ans. 
An event is an occurrence or happening that can be detected and responded to by software.
• Events can be user actions (clicking a button, typing in a text box)

• Events can be system-generated (timer expiration, network packet arrival)

• Events are typically handled by event handlers or listeners in software development
Answered by AI
Add your answer