TO THE NEW Associate Technical Leader Interview Questions, Process, and Tips

Q1. Introduce yourself, including what' s your roles and responsibility and what's your day to day task
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Q2. Given a scenario, suppose there is slowness in system, and there is no APM tool then how will you identify the issue and solve it.
Ans. 
Identify potential causes through system analysis, logs, and monitoring tools. Implement troubleshooting steps to resolve the issue.
• Analyze system performance metrics such as CPU usage, memory usage, disk I/O, and network traffic to identify bottlenecks.

• Check system logs for any error messages or warnings that could indicate the source of the slowness.

• Review application logs to see if there are any specific requests or...read more
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Q3. Question on thread dump, in what case it should be taken, how many thread dumps are required and at what interval.
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Q4. If there is slowness in system and you have thread dump, what analysis you will do from it
Ans. 
I would analyze the thread dump to identify any bottlenecks or issues causing the system slowness.
• Identify any threads that are in a blocked or waiting state

• Look for any threads consuming excessive CPU or memory

• Check for any deadlocks or resource contention issues

• Analyze the stack traces to pinpoint the root cause of the slowness
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Q5. Do study about all web and app server and also respective logs
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Q1. Mix of coding, theory and design questions
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Write a program on priority queue

Q1. Questions on network protocol
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Q2. Question on non-blocking socket
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Q3. Question on linked list
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Q1. Interview with cliient directly similar questions like round 2
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Q1. Builder design pattern in java
Ans. 
Builder design pattern is a creational design pattern used to construct complex objects step by step.
• Builder pattern separates the construction of a complex object from its representation.

• It allows the same construction process to create different representations of the object.

• Useful when there are multiple ways to construct an object or when the object creation process is complex.

• Example: StringBuilder in Java allows ...read more
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Q2. Docker, MQ series involved
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Q3. JOIN Query with country , emp name
Ans. 
JOIN query to retrieve country and employee name
• Use JOIN keyword to combine data from multiple tables

• Specify the columns to select from each table

• Use ON keyword to specify the relationship between the tables
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Q1. Print greater number using lambda function
Ans. 
Use lambda function to print greater number
• Define a lambda function that takes two parameters

• Use the max() function inside the lambda to compare the two numbers

• Call the lambda function with two numbers to print the greater one
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Q2. Explain OOPs concepts
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OOPs concepts refer to Object-Oriented Programming principles like inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation detail
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Q3. All major C++ topics were covered
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Q1. Singleton design pattern
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Q2. Code for Fibonacci series -- both iterative and recursive
Ans. 
Fibonacci series code in iterative and recursive methods
• Iterative method: Use a loop to calculate Fibonacci numbers

• Recursive method: Define a function that calls itself to calculate Fibonacci numbers

• Example for iterative method: int fib(int n) { int a = 0, b = 1, c; for(int i = 2; i <= n; i++) { c = a + b; a = b; b = c; } return b; }

• Example for recursive method: int fib(int n) { if(n <= 1) return n; return fib(n-1) + f
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Q1. Print 1-10 using 2 threads, in correct order
Ans. 
Use two threads to print numbers 1-10 in correct order
• Create two threads, one for printing odd numbers and one for printing even numbers

• Use synchronization mechanisms like mutex or semaphore to ensure correct order

• Example: Thread 1 prints 1, 3, 5, 7, 9 and Thread 2 prints 2, 4, 6, 8, 10
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Q2. How to do Unit testing in C++
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Unit testing in C++ involves writing test cases for individual units of code to ensure they work as expected.
• Use a unit testing framework like Google Test or Catch2 to write and run test cases

• Create separate test files for each unit of code being tested

• Use assertions to check the expected behavior of the code under test

• Mock dependencies or use dependency injection to isolate units for testing

• Run tests regularly to catc
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Q1. Wht is ur sal expectations
Ans. 
My salary expectations are based on my experience, skills, and the market rate for the position.
• Consider my years of experience in the industry

• Research the average salary range for similar positions in the market

• Factor in the cost of living in the location of the job

• Be open to negotiation based on the overall compensation package offered
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