Oracle Senior Software Developer Interview Questions, Process, and Tips

Q1. Explain how CLR works
Ans. 
CLR is the runtime environment for .NET applications that manages memory, security, and execution of code.
• CLR stands for Common Language Runtime

• It compiles code into an intermediate language (IL) that can run on any platform with CLR installed

• CLR manages memory through garbage collection

• It provides security through code access security (CAS)

• CLR also includes just-in-time (JIT) compilation for improved performance
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Q2. Explain SOLID principle
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SOLID is a set of principles for object-oriented programming that aims to make software more maintainable, scalable, and robust.
• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open/Closed Principle: Software entities should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Subtypes should be substitutable for their base types.

• I - Interface Segreg...read more
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Q3. Explain design pattern
Ans. 
Design pattern is a reusable solution to a commonly occurring problem in software design.
• Design patterns provide a common language for developers to communicate solutions.

• They help in creating flexible, maintainable, and scalable software.

• Examples include Singleton, Factory, Observer, and MVC pattern.

• Design patterns are categorized into three types: Creational, Structural, and Behavioral.
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Q4. Write a program for palindrome
Ans. 
Program to check if a given string is a palindrome
• Convert the string to lowercase to ignore case sensitivity

• Remove all non-alphanumeric characters from the string

• Reverse the string and compare it with the original string

• If they are the same, then the string is a palindrome
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Q1. Function overloading vs overriding
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Function overloading is having multiple functions with the same name but different parameters. Function overriding is having a function in a subclass with the same name and parameters as a function in the superclass.
• Function overloading is used to provide different ways to call a function with different parameters.

• Function overriding is used to provide a specific implementation of a function in a subclass that is diffe...read more
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Q2. Difference between ref and out
Ans. 
Ref and out are both used to pass arguments by reference in C#. Ref is bidirectional while out is unidirectional.
• Ref and out are used to pass arguments by reference instead of by value

• Ref is used for both input and output parameters while out is only used for output parameters

• Ref requires the variable to be initialized before passing while out does not

• Example: void MyMethod(ref int x) { x = x + 1; }

• Example: void MyMeth
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Q3. Explain jagged array in C#
Ans. 
Jagged array is an array of arrays where each array can have different lengths.
• Each array can have different number of elements

• Can be used to represent tables with varying number of columns

• Example: string[][] jaggedArray = new string[3][];
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Q4. How does IIS work internally
Ans. 
IIS is a web server that handles HTTP requests and responses.
• IIS stands for Internet Information Services.

• It is a component of Windows Server.

• It listens for incoming HTTP requests on a specified port.

• It processes the request and sends back a response.

• It can host multiple websites on a single server.

• It supports various protocols like HTTP, HTTPS, FTP, SMTP, etc.

• It can be configured using the IIS Manager tool.

• It can also
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Q1. Why do you want to join Oracle ?
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Q2. What is your greatest weakness ?
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Q1. Compensation discussion.
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Q1. 2 tech rounds 1 tech plus managerial Then final call with HR
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Q1. Technical Interview based on you experience.
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Q2. Logical questions related to the real world problem solving
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Q1. Pure technical on working technologies
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Q2. Basic to in depth technical questions
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Q1. Your responsibilities in the project
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Q2. Achievements in your work
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Q1. Technical questions and achievements
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Q2. Strengths, weaknesses and project structure
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Q1. Salary discussion and position information
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Q2. Salary negotiations and information on position
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Be good on basics of coding

Q1. Some sql queries and code piece related to substring
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