HUDL Senior Software Engineer Interview Questions and Answers

Q1. Basic Oracle Architecture, RAC Setup, Golden Gate Troubleshooting, Data Guard recover, RMAN restoration
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Q1. Advantage and disadvantage of framework.
Ans. 
Frameworks provide structure and pre-built components for software development, but can also limit flexibility and require learning curve.
• Advantage: Provides structure and pre-built components for faster development

• Advantage: Can improve code quality and maintainability

• Disadvantage: Can limit flexibility and customization

• Disadvantage: Requires learning curve and potential dependency issues

• Example: ReactJS provides a fr...read more
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Q1. What is Oops? Advantage and disadvantage
Ans. 
Oops stands for Object-Oriented Programming. It is a programming paradigm that uses objects to represent real-world entities.
• Advantages: code reusability, modularity, encapsulation, inheritance, polymorphism

• Disadvantages: complexity, steep learning curve, performance overhead

• Example: creating a class 'Car' with properties like 'make', 'model', and 'year', and methods like 'start_engine' and 'stop_engine'
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Aptitude test will a hackerrank test where it might have technical MCQ and/or coding test.

Q1. Interviewer will test your logic building capability with puzzel/coding and technical questions and experience discussion.
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Q1. Its a normal discussion with HR about CTC and all.
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Q1. What is ApplicationContext in Spring
Ans. 
ApplicationContext is an interface for providing configuration information to an application.
• ApplicationContext is the central interface in a Spring application for providing configuration information to the application.

• It is responsible for instantiating, configuring, and assembling beans.

• ApplicationContext can load bean definitions, wire beans together, and dispense beans upon request.

• It provides a means for resolvin...read more
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Q2. Is JAVA platform independent
Ans. 
Yes, Java is platform independent due to its ability to compile code into bytecode that can run on any platform with a Java Virtual Machine (JVM).
• Java code is compiled into bytecode which can run on any platform with a JVM

• JVM acts as an abstraction layer between the Java code and the underlying platform

• Java's 'write once, run anywhere' principle allows for platform independence
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Q1. Explain psvm in java
Ans. 
psvm in Java stands for public static void main, which is the entry point for a Java program.
• psvm is the method signature for the main method in Java programs.

• It is used to start the execution of a Java program.

• It must be declared as public, static, and void.

• It takes an array of strings as an argument, which can be used to pass command line arguments.
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Q2. Explain collection
Ans. 
A collection is a group of related objects or data items that are stored together.
• Collections can be implemented using data structures like arrays, lists, sets, maps, etc.

• Collections allow for easy manipulation and organization of data.

• Examples of collections include arrays of integers, lists of strings, sets of unique values, and maps of key-value pairs.
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Hackerrank test consitin of 2 DSA questions and 1 api development question

Q1. Reverse the linked list.
Ans. 
Reverse a linked list by changing the direction of pointers.
• Start with three pointers: current, previous, and next.

• Iterate through the linked list, updating pointers to reverse the direction.

• Return the new head of the reversed linked list.
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Q1. Internel working of Hashmap
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HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.
• HashMap internally uses an array of linked lists to store key-value pairs.

• When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.

• If multiple keys hash to the same index, a linked list is used to handle collisions.

• Retrieving a value involves hashing the ...read more
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Q1. Salary Discussion
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Q1. Basic Java questions
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Q2. Oops concepts, error handling, interfaces
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Q1. Framework level questions
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Q2. Spring , Spring boot, Rest Api
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