ICICI Home Finance Network Engineer Interview Questions and Answers

Q1. Questions related to Java, AWS, Microservices
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Q2. Program to find 2 biggest number in array
Ans. 
Program to find 2 biggest numbers in array of strings
• Iterate through the array and convert each element to integer

• Keep track of the two biggest numbers found so far

• Return the two biggest numbers at the end
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Q1. Java related questions
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Q2. Design patterns
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Q1. Mvc,sql,oops,web api
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Low-level design interview
I need to design a Music player app using oops concept

Q1. Sort the stack in O(1) time complexity
Ans. 
Use an additional stack to store sorted elements and maintain the minimum element at the top of the original stack.
• Create a new stack to store sorted elements.

• Pop elements from the original stack and compare with the top element of the new stack.

• If the popped element is smaller, push it to the new stack. If larger, keep popping from the new stack and push to the original stack until the correct position is found.

• Repeat...read more
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Q2. Difference between process and thread
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A process is an instance of a program running on a computer, while a thread is a smaller unit of execution within a process.
• A process has its own memory space, while threads within the same process share memory.

• Processes are independent of each other, while threads within the same process can communicate with each other.

• Processes are heavyweight, requiring separate memory and resources, while threads are lightweight an...read more
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Q3. Difference between abstract class and interface
Ans. 
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
• Abstract class can have constructor, fields, and methods, while interface cannot have any of these.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract class is used to provide a common base for multiple derived classes, while interface is used to define a contract fo...read more
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Q4. What is race condition?
Ans. 
A race condition is a situation in which the outcome of a program depends on the order of execution of its threads or processes.
• Occurs when multiple threads or processes access shared data or resources concurrently

• Can lead to unpredictable behavior or bugs in the program

• Prevented by using synchronization mechanisms like locks or semaphores

• Example: Two threads trying to increment a shared variable simultaneously
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Q5. What is normalization in dbms
Ans. 
Normalization in DBMS is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalization involves breaking down a database into smaller, more manageable tables.

• It helps in reducing data redundancy by storing data in a structured way.

• There are different normal forms like 1NF, 2NF, 3NF, BCNF, etc.

• Example: In a database of students, instead of storing student details in multiple ...read more
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An aptitude has exam used to determine an individual skills a given activity

Q1. Tell me about yourself
Ans. I am Jagan, from poonamallee, I have completed my bachelor degree in computer science from Anna University
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Q2. What is your strength
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Q3. What is your weakness
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Q4. Why did you decide to apply to this role?
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Q5. Why should I hire you?
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Q1. 1. Tell me about Python OS module. 2. What is Anachron? 3. What is the difference between Dynamic and Static website? 4. How will you clone a particular branch? 5. How will you handle exceptions in Ansible...read more
Ans. 
Technical interview questions for Senior Engineer position
• Python OS module provides a way of interacting with the operating system

• Anachron is a tool for scheduling periodic jobs

• Dynamic websites generate content on the fly while static websites serve pre-built content

• To clone a particular branch, use the git clone command followed by the branch name

• Exceptions in Ansible can be handled via the 'ignore_errors' parameter i...read more
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Maths,verbal reasoning.
Like percentage,wages, proportional problems

Particular topic on political party

Q1. Java, Sql , and Oops questions
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Q2. Easy rounds went into play.
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It was a online hacker rank type test with medium hard question

Q1. Discussion around current Projects and its tech stack
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Q2. Print Left image of binary tree
Ans. 
Print left view of binary tree
• Traverse the binary tree level by level

• Print the first node at each level encountered
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Q1. Common HR questions
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Q1. Senior Manger Review Discussion about role and fit
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Leet code problem. Sliding window

Q1. Design related like book my show
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Q2. Database design questions related to concurrency
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