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Persistent Systems Senior Android Developer Interview Questions and Answers

Updated 13 May 2024

Persistent Systems Senior Android Developer Interview Experiences

1 interview found

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
More than 8 weeks
Result
-

I applied via Company Website and was interviewed in Apr 2024. There were 2 interview rounds.

Round 1 - Technical 

(4 Questions)

  • Q1. Solid principles, core java,kotlin
  • Q2. Mvvm,mvp,mvc,flows
  • Q3. State flow shared flow
  • Q4. Builder pattern
Round 2 - Technical 

(3 Questions)

  • Q1. Technical scenarios
  • Q2. Java coding,data structures
  • Q3. Algo,complex views,compose

Interview Preparation Tips

Topics to prepare for Persistent Systems Senior Android Developer interview:
  • Kotlin
  • MVVM
Interview preparation tips for other job seekers - Prepare well on kotlin

Interview questions from similar companies

I applied via Naukri.com and was interviewed before Jul 2018. There were 2 interview rounds.

Interview Preparation Tips

Round: Test
Experience: HackerRank test

General Tips: First round was scheduled for 10:30 but i got late and reached 11:45 at location.
That was not a problem for them because first round was system interview so after waitinf for 10 minutes only i got my turn and i went for sytem test.
2 hacker rank questions were there so if you are going for Mindtree practice hackerrank question.
Skills: Problem Solving, Time Management
Duration: <1 week

I applied via Campus Placement and was interviewed in Dec 2020. There were 5 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Program for pattern printing ,bubble sort
  • Ans. 

    Program to print a pattern and implement bubble sort on an array of strings.

    • For pattern printing, use nested loops to print the desired pattern.

    • For bubble sort, compare adjacent elements and swap if necessary.

    • Use a loop to iterate through the array until no more swaps are needed.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Basics

Skills evaluated in this interview

I applied via Walk-in and was interviewed before Dec 2020. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Basic Programming questions.
  • Q2. Fibonacci program
  • Q3. OOPS concepts.

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare basic OOPS concepts and basic programs.

Interview Questionnaire 

3 Questions

  • Q1. Tr1- difference between switch case and if else, write the code for sorting
  • Ans. 

    Switch case is used for multiple conditions while if else is for binary conditions. Sorting can be done using various algorithms.

    • Switch case is faster than if else for multiple conditions

    • If else is more readable for binary conditions

    • Sorting can be done using bubble sort, insertion sort, quick sort, etc.

    • Example code for bubble sort: for(i=0;iarr[j+1]){swap(&arr[j],&arr[j+1]);}}}

  • Answered by AI
  • Q2. Tr2-difference between compiler and interpreter, Solve a challange on their own coding platform with proper output
  • Ans. 

    Difference between compiler and interpreter with a coding challenge

    • Compiler translates the entire code into machine language before execution while interpreter translates line by line during execution

    • Compiler generates an executable file while interpreter does not

    • Compiler is faster but debugging is harder while interpreter is slower but debugging is easier

    • Coding challenge: Write a program to find the sum of two numbers

  • Answered by AI
  • Q3. Oops concept

I applied via Naukri.com and was interviewed in Aug 2020. There were 5 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Aws vpc gateway questions, devops drawback
  • Q2. Interfaces in oops
  • Ans. 

    Interfaces define a contract for classes to implement certain methods and properties.

    • Interfaces allow for polymorphism and loose coupling.

    • Classes can implement multiple interfaces.

    • Interfaces cannot be instantiated on their own.

    • Interfaces can have default method implementations.

    • Interfaces can be used to enforce design patterns like the adapter pattern.

  • Answered by AI
  • Q3. Meta programing

Interview Preparation Tips

Interview preparation tips for other job seekers - Not at all good experience. Looks like the structure is baffled now after pandemic hit. First of all HR people, they have so much attitude that you can't even ask them any query regarding your JD or project. Secondly there are many rounds but it all depends upon the interviewer mood only and only. Because you are not hired for a direct project, so if the interviewer is egoistic and high attitude, then it's difficult to get positive feedback even if round well all well. Disappointing experience. Suggestion would be to put right people for talent selection. If people are kept in similar way, every new candidate might have negative experience.

Interview Questionnaire 

2 Questions

  • Q1. Tell about you
  • Q2. What is computer networking
  • Ans. 

    Computer networking is the practice of connecting devices together to share resources and communicate with each other.

    • Computer networking involves the use of hardware and software to connect devices together, such as computers, printers, and servers.

    • Networking protocols, such as TCP/IP, are used to facilitate communication between devices.

    • Examples of computer networks include local area networks (LANs), wide area netwo...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - 1 round will be aptitude test and 2 nd round will be group discussion and finally there will be technical hr and general hr round

Skills evaluated in this interview

Interview Questionnaire 

1 Question

  • Q1. Basic questions related to skillset

Interview Questionnaire 

2 Questions

  • Q1. Reverse linked list
  • Q2. Invert tree

I appeared for an interview before Sep 2020.

Round 1 - Coding Test 

(2 Questions)

Round duration - 45 Minutes
Round difficulty - Easy

The round was conducted at 12 in the college campus. It was a pen and paper based coding round and had 2 coding questions for which we had to write the best approach.

  • Q1. 

    Equilibrium Index Problem Statement

    Given an array Arr consisting of N integers, your task is to find the equilibrium index of the array.

    An index is considered as an equilibrium index if the sum of elem...

  • Ans. 

    Find the equilibrium index of an array where sum of elements on left equals sum on right.

    • Iterate through the array and calculate the total sum of all elements.

    • Then iterate again and keep track of the left sum and right sum, checking for equilibrium.

    • Return the index when left sum equals right sum, or -1 if no equilibrium index found.

  • Answered by AI
  • Q2. 

    Merge Sort Linked List Problem Statement

    You are given a singly linked list of integers. Your task is to sort the linked list using the merge sort algorithm.

    Explanation:

    Merge Sort is a divide and conq...

  • Ans. 

    Implement merge sort algorithm to sort a singly linked list of integers.

    • Divide the linked list into two halves using slow and fast pointers.

    • Recursively sort the two halves.

    • Merge the sorted halves using a merge function.

    • Handle base cases like empty list or single node list.

    • Ensure the termination of the linked list with -1 at the end.

  • Answered by AI
Round 2 - Coding Test 

(2 Questions)

Round duration - 45 Minutes
Round difficulty - Easy

There were 2 coding questions and we had to write the best approach for the questions.

  • Q1. 

    Convert Sentence Problem Statement

    Convert a given string 'S' into its equivalent representation based on a mobile numeric keypad sequence. Using the keypad layout shown in the reference, output the seque...

  • Ans. 

    Convert a given string into its equivalent representation based on a mobile numeric keypad sequence.

    • Create a mapping of characters to their corresponding numeric keypad sequences.

    • Iterate through the input string and append the numeric sequence for each character to the output.

    • Handle lowercase characters only, ignore special characters, capital letters, and spaces in the input string.

  • Answered by AI
  • Q2. 

    Subsequences of String Problem Statement

    You are provided with a string 'STR' that consists of lowercase English letters ranging from 'a' to 'z'. Your task is to determine all non-empty possible subsequen...

  • Ans. 

    Generate all possible subsequences of a given string.

    • Use recursion to generate all possible subsequences by including or excluding each character in the string.

    • Maintain a current index to keep track of the characters being considered.

    • Append the current character to each subsequence generated so far.

    • Recursively call the function with the next index to include the next character in subsequences.

  • Answered by AI
Round 3 - Face to Face 

(2 Questions)

Round duration - 40 minutes
Round difficulty - Easy

The interviewer asked me questions from arrays, strings and linked list.

  • Q1. 

    Longest Increasing Subsequence Problem Statement

    Given an array of integers with 'N' elements, determine the length of the longest subsequence where each element is greater than the previous element. This...

  • Ans. 

    Find the length of the longest strictly increasing subsequence in an array of integers.

    • Use dynamic programming to keep track of the longest increasing subsequence ending at each element.

    • Initialize an array to store the lengths of the longest increasing subsequences.

    • Iterate through the array and update the lengths based on the previous elements.

    • Return the maximum length found in the array.

  • Answered by AI
  • Q2. 

    Binary Palindrome Check

    Given an integer N, determine whether its binary representation is a palindrome.

    Input:

    The first line contains an integer 'T' representing the number of test cases. 
    The next 'T'...
  • Ans. 

    Check if the binary representation of a given integer is a palindrome.

    • Convert the integer to binary representation.

    • Check if the binary representation is a palindrome by comparing it with its reverse.

    • Return true if it is a palindrome, false otherwise.

  • Answered by AI

Interview Preparation Tips

Professional and academic backgroundI completed Information Technology from Bharati Vidyapeeth's College of Engineering. I applied for the job as SDE - 1 in GurgaonEligibility criteriaAbove 7 CGPANagarro interview preparation:Topics to prepare for the interview - Data Structures and Algorithms, Dynamic Programming, Game theory, System Design, Puzzles, AptitudeTime required to prepare for the interview - 1 MonthInterview preparation tips for other job seekers

Tip 1 : Do at-least 200+ dsa problems from various topics.
Tip 2 : Make 2-3 projects and be well versed with their functionality.
Tip 3 : Practice aptitude questions and time yourself while doing the questions.

Application resume tips for other job seekers

Tip 1 : Keep your resume short, try to make it one pager only.
Tip 2 : Mention only position specific projects, and if you have got a good academic score mention it on top.

Final outcome of the interviewRejected

Skills evaluated in this interview

Persistent Systems Interview FAQs

How many rounds are there in Persistent Systems Senior Android Developer interview?
Persistent Systems interview process usually has 2 rounds. The most common rounds in the Persistent Systems interview process are Technical.
What are the top questions asked in Persistent Systems Senior Android Developer interview?

Some of the top questions asked at the Persistent Systems Senior Android Developer interview -

  1. Solid principles, core java,kot...read more
  2. State flow shared f...read more
  3. Java coding,data structu...read more

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Persistent Systems Senior Android Developer Interview Process

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Excellent
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5.0/5

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