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Plivo Sde1 Interview Questions and Answers
Plivo Sde1 Interview Experiences
1 interview found
Anonymous
I was interviewed in Mar 2021.
Interview Questionnaire
3 Questions
- Q1. Given an array of 0s, 1s and 2s sort the array - expected O(n)
- Ans.
Sort an array of 0s, 1s, and 2s in O(n) time complexity.
Use three pointers to keep track of the positions of 0s, 1s, and 2s.
Traverse the array and swap elements to their respective positions.
The first pointer should point to the first occurrence of 1, and the second pointer should point to the first occurrence of 2.
Example: [0, 1, 2, 0, 1, 2] -> [0, 0, 1, 1, 2, 2]
- Q2. Design tinyURL
- Ans.
Design a service to shorten long URLs into short ones.
Generate a unique ID for each long URL and store it in a database.
Map the unique ID to the long URL and store it in the database.
Create a short URL by using the unique ID as a parameter.
Redirect the short URL to the long URL when accessed.
Implement security measures to prevent abuse and ensure privacy.
Consider implementing analytics to track usage and performance.
- Q3. Basic multi threading questions
Interview Preparation Tips
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
Basics of aptitude logical reasoning and etcs
Wap for palindrome even odd and some string questions
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Aug 2022. There were 2 interview rounds.
(2 Questions)
- Q1. DSA questions on sorting
- Q2. Computer science fundamental questions
Interview Preparation Tips
Selected
(2 Questions)
- Q1. Collection,multi threading,stream, spring boot,spring annotations,docker ,Kafka basic, sorting array, steam use employee list manipulation based on condition, count no of user visit at your site
- Q2. Interviewer asked based on skill add on resume and last project architecture and basic oops,sping boot questions,some SQL query like inner join on same table
Selected
I applied via LinkedIn and was interviewed in Sep 2023. There were 5 interview rounds.
Array and string questions
(1 Question)
- Q1. Core Java Spring Spring boot Database : join and trigger nth largest salary Hashmap working
Behaviours test like psychometric
(1 Question)
- Q1. Mostly micro service Database Collection in Java
Selected
I applied via LinkedIn and was interviewed before May 2023. There were 2 interview rounds.
Simple leetcode medium
(3 Questions)
- Q1. Based on grouping the words
- Q2. DSA medium questions
- Q3. String manipulation and Java 8 questions
Zamaan Haider
Selected
I applied via Naukri.com and was interviewed before Feb 2023. There was 1 interview round.
(3 Questions)
- Q1. OOPs fundamentals
- Q2. Servlet Life Cycle
- Q3. Explanation about Serialization in java
- Ans.
Serialization in Java is the process of converting an object into a stream of bytes to store or transmit data.
Serialization is used for object persistence, network communication, and deep cloning.
In Java, the Serializable interface is used to mark classes as serializable.
Objects can be serialized using ObjectOutputStream and deserialized using ObjectInputStream.
Interview Preparation Tips
- Core Java
- Servlets
- MySQL
- OOPS
Skills evaluated in this interview
(1 Question)
- Q1. Design and code a zoo management system.
- Ans.
A zoo management system to track animals, enclosures, staff, and visitor information.
Create classes for animals, enclosures, staff, and visitors
Implement functions for adding, updating, and deleting records
Include features for scheduling feeding times, cleaning enclosures, and managing staff shifts
Standard DSA questions
(1 Question)
- Q1. Standard HR stuff.
Skills evaluated in this interview
Interview Questionnaire
1 Question
- Q1. Lot of accounting questions
Interview Preparation Tips
need to be well prepared
(1 Question)
- Q1. They asked to design a database table
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