Cohesity Member Technical Staff Software Interview Questions and Answers

Q1. Design a multithreaded logger system
Ans. 
A multithreaded logger system allows multiple threads to log messages concurrently without blocking each other.
• Use a thread-safe data structure like a concurrent queue to store log messages.

• Implement a logging class with methods for adding log messages and writing them to a file.

• Use synchronization mechanisms like locks or semaphores to ensure thread safety.

• Consider using a separate thread for writing log messages to t...read more
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Q2. How virtual pointers work?
Ans. 
Virtual pointers are used in C++ to implement polymorphism by allowing objects to be accessed through a base class pointer.
• Virtual pointers are used in C++ to achieve runtime polymorphism.

• They are created by adding virtual keyword to a function in a base class.

• Virtual pointers allow objects of derived classes to be accessed through a base class pointer.
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Q1. Explain how CLR works
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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
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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
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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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Easy question, maximum question on average, ages, pie chart,flow chart of coding, English comprehension, situation based question.

Q1. DR scenarios details and configuration
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Q2. Nutanix upgrade process
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Q1. Linux boot process
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Q2. Commands awk and sed in linux
Ans. 
awk and sed are powerful text processing tools in Linux.
• awk is used for pattern scanning and processing

• sed is used for text stream editing

• Both can be used in combination to manipulate text files

• Example: awk '{print $1}' file.txt

• Example: sed 's/old/new/g' file.txt
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OA based on 3 coding questions which had abstract based DP questions. 50 MCQs

Q1. Javascript basic questions
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Q2. React questions
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Q1. Interview with director and more like technical and behavioural.
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Q2. Why do you think you will be able to survive in our team
Ans. 
I have a strong technical background, excellent communication skills, and a proven track record of working well in team environments.
• Strong technical background in software development

• Excellent communication skills to collaborate effectively with team members

• Proven track record of successfully working in team environments
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Q1. Strengths and Weaknesses
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