Walking Tree Devops Engineer Interview Questions and Answers

Q1. Write a program to check if string is a anagram
Ans. 
Program to check if a string is an anagram
• Create a function that takes in two strings as input

• Remove all spaces and convert both strings to lowercase

• Sort both strings and compare if they are equal to determine if they are anagrams
Answered by AI
View 1 more answer
Q2. What is react lifecycle method
Ans. 
React lifecycle methods are special methods that are automatically called by React at specific points in a component's life cycle.
• React components have several lifecycle methods such as componentDidMount, componentDidUpdate, componentWillUnmount, etc.

• These methods allow developers to perform actions at specific points in a component's life cycle, such as fetching data, updating the UI, or cleaning up resources.

• Understa...read more
Answered by AI
Add your answer

Create a web app to perform cred operation

General aptitude questions

Abstract topic group discussion

Q1. Technical interview covering topics on oops , data structures , conditional statements.
Add your answer

Q1. General questions- introduction , how previous rounds went ,hobbies , what do you know about our company , situation based questions.
Add your answer

Few questions that would involve problem solving. Basic 10th std math would suffice

Had few DSA questions.

Q1. Technical interview
Add your answer

Q1. About job, expection etc
Add your answer

Simple question on maths

Q1. Explain OOPS concept
Ans. 
OOPS (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPS focuses on creating objects that interact with each other to solve complex problems

• Key principles include encapsulation, inheritance, polymorphism, and abstraction

• Encapsulation ensures that the internal state of an object is hidden from the outside world

• Inheritance allows a class to inherit...read more
Answered by AI
Add your answer
Q2. Coding array questions
Add your answer

Easy to medium leetcode questions

Q1. How make a queue using a stack
Ans. 
To implement a queue using a stack, use two stacks and simulate the queue operations.
• Use two stacks, one for enqueue operation and one for dequeue operation.

• For enqueue operation, simply push elements onto the stack used for enqueueing.

• For dequeue operation, if the dequeue stack is empty, pop all elements from enqueue stack and push onto dequeue stack.

• Then pop from the dequeue stack to simulate dequeue operation.
Answered by AI
Add your answer
Q2. Create a linked list
Ans. 
A linked list is a data structure consisting of nodes where each node points to the next node in the sequence.
• Create a Node class with data and next pointer

• Initialize a head pointer to null

• Add nodes by updating next pointers

• Traverse the list by following next pointers
Answered by AI
Add your answer