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I applied via LinkedIn and was interviewed in Apr 2024. There was 1 interview round.
Permutations of an array of strings are all possible arrangements of the elements.
Use recursion to generate all permutations.
Swap elements to create different permutations.
Base case: when only one element is left, add the permutation to the result.
Example: Array ['A', 'B', 'C'] has permutations ['ABC', 'ACB', 'BAC', 'BCA', 'CBA', 'CAB'].
Use Java 8 Stream API to find the largest number in an array of strings without using additional data structures or loops.
Convert the array of strings to a stream of integers using map() and parseInt()
Use reduce() with Math::max to find the largest number in the stream
I applied via Referral and was interviewed in Apr 2022. There were 3 interview rounds.
I applied via Recruitment Consultant and was interviewed in Mar 2021. There were 3 interview rounds.
API to get logs of a Spring Boot app in Kibana way, reading from the back.
Use Spring Boot Actuator to expose endpoints for log retrieval
Configure Logstash to read logs from the application and send to Elasticsearch
Use Kibana to visualize and search logs
Implement pagination to read logs from the back
Design a car rental platform like ZoomCar.
Create a user-friendly website and mobile app for booking cars.
Integrate GPS and other technologies for easy tracking and navigation.
Offer a wide range of cars for rent, from hatchbacks to luxury cars.
Provide flexible rental options, including hourly, daily, and weekly rentals.
Implement a secure payment gateway for hassle-free transactions.
Ensure proper maintenance and cleaning...
Deutsche Telekom interview questions for designations
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I applied via Recruitment Consultant and was interviewed before Sep 2018. There were 4 interview rounds.
I was interviewed in Feb 2017.
posted on 23 Feb 2015
based on 4 interviews
1 Interview rounds
based on 15 reviews
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