Waltr (Kre38 Labs) Interview Questions and Answers

Q1. No question from hr and team
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Sort an array using a sort algorithm

Politics in india and rest of asis

It had 30 questions including verbal and reasoning.

2 codes were given. One easy and one tough.

Q1. Web api , sql, basics
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Q2. Design pattern, Solid principles,
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Q1. How you solve palindrome Reverse an string
Ans. 
To solve a palindrome, compare the string with its reverse. To reverse a string, iterate through it in reverse order.
• Iterate through the string in reverse order to create the reversed string.

• Compare the original string with the reversed string to check if it is a palindrome.

• Handle cases where the input string is empty or null.
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Q2. Revers a string
Ans. 
Reverse a string
• Use a loop to iterate through the characters of the string

• Swap the characters from start to end to reverse the string

• Return the reversed string
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Q3. Multiple jagged array how to iterate
Ans. 
Use nested loops to iterate through each array and each element in a jagged array of strings.
• Use a nested loop to iterate through each array in the jagged array

• Within the nested loop, iterate through each element in the current array

• Access each element using the indices of the arrays
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Q4. What is static value
Ans. 
Static value is a value that remains constant and does not change.
• Static value does not vary or fluctuate.

• It remains the same regardless of external factors.

• Examples include mathematical constants like pi (π) or physical constants like the speed of light.
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Q5. How to use debugging
Ans. 
Debugging is the process of identifying and fixing errors in code to ensure it runs smoothly.
• Use print statements to track the flow of the program and identify where the error occurs

• Utilize debugging tools like breakpoints to pause the program at specific points and inspect variables

• Step through the code line by line to understand the execution flow and pinpoint the issue

• Check for syntax errors, logical errors, and run
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Q1. Sap and crm usage
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Q2. Behavioural and aptitude assessment
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Time and distance, percentage, verbal

Related to ai and ml

Q1. Basics of Multi Threading
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Data structures and Algorithms