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FlyNava Technologies Interview Questions and Answers
FlyNava Technologies Interview Experiences
3 interviews found
(4 Questions)
- Q1. What is Microservices
- Ans.
Microservices are a software development technique where applications are composed of small, independent services that communicate with each other.
Microservices break down a large application into smaller, loosely coupled services
Each service is responsible for a specific task or function
Services communicate with each other through APIs
Microservices allow for easier scalability, flexibility, and maintenance
Examples of ...
- Q2. Difference between throws and throw
- Ans.
throws is used in method signature to declare exceptions that can be thrown, while throw is used to actually throw an exception
throws is used in method signature to declare exceptions that can be thrown
throw is used to actually throw an exception
throws is followed by the exception class name, while throw is followed by an instance of Throwable class
- Q3. What is Exception handling
- Ans.
Exception handling is the process of responding to and managing errors that occur during the execution of a program.
Exceptions are objects that represent errors or unexpected events in a program.
Exception handling allows developers to gracefully handle errors and prevent the program from crashing.
Common exception handling techniques include try-catch blocks, throw statements, and finally blocks.
Example: try { // code t...
- Q4. Scenario based questions like create an api for passenger to travel from source and destination
Skills evaluated in this interview
I applied via Campus Placement and was interviewed in Sep 2024. There was 1 interview round.
The coding test was a Hackerrank contest where we had to solve 2 coding problems within 60 minutes.
Interview Preparation Tips
- dsa
- sql
- strings
- python
Data Analyst Interview Questions asked at other Companies
tulsi choudhary
It was average test only
Good leetcode medium question
Had to do it in very detailed way
Data Scientist Interview Questions asked at other Companies
Interview questions from similar companies
himanshu arora
Interview Preparation Tips
Experience: it was a basic test, CAT level questions and can be easily cleared
Tips: keep your cool, don't panic
Duration: 60 minutes
Total Questions: 60
College Name: IIT BOMBAY
Interview Preparation Tips
Experience: English was unpredictable.. Maths was easy but it will be good if you have practice, logical reasoning requires practice but are interesting
Tips: Leave english comprehensions for the end.. Do not waste too much time on one question even if it appears easy.. attempt the paper in the order of your comfort and mark every questions in case of NO negative marking
Duration: 60 minutes
Round: HR Interview
Tips: Smile!! And think before speaking anything, else you may contradict your own point.. Prepare "Tell me about yourself" well and guide your interview by focusing on your strongest point, you may face more questions on that point.. refer to 64 HR questions book
Round: Stress Interview
Tips: If they are giving you stress, that means they like you.. Relax!! Do not get nervous, thats what they want to check.. Think for the solution to the problem normally, you know you can crack it (Stress interview may be a part of HR, technical, case or any other interview.. you may have to make it out yourself)
Skill Tips: ""
Skills: Puzzles, Speaking skills, Aptitude, guesstimates, Case solving, presentation skills
College Name: IIT Bombay
Business Analyst Interview Questions & Answers
Ola Cabs
Vishnuvardhan Reddy Kotte
posted on 21 Feb 2015
Interview Questionnaire
3 Questions
- Q1. Give some quantifiable factors you can use to rate( for comapny's purpose) among a repository of cab drivers we have?
- Ans.
Quantifiable factors to rate cab drivers for company's purpose
Customer ratings and feedback
Number of completed trips
Average trip duration
Percentage of on-time pickups
Accident and traffic violation history
Vehicle cleanliness and maintenance
Driver punctuality and professionalism
- Q2. If you are on the selection committee of BCCI what would be your criterion for choosing between Yuvraj Singh and Stuart Binny for the World Cup squad?
- Ans.
The criterion for choosing between Yuvraj Singh and Stuart Binny for the World Cup squad would be based on their recent performance, fitness, and team balance.
Evaluate recent performance of both players
Assess fitness levels of both players
Consider team balance and required skill sets
Analyze pitch and weather conditions of the tournament
Take into account the opposition teams and their strengths and weaknesses
- Q3. Some questions on programming (Pseudo Codes )
Interview Preparation Tips
Experience: There were questions on general aptitude like work and time, probability, and some questions were on data interpretation, coding and decoding, etc., most of the questions were very simple...but I felt the data interpretation questions to be a bit tricky (completely my opinion though).. ON THE BASIS OF THIS TEST THEY SHORTLISTED ROUGHLY 15 OUT OF 150 (again a rough figure)
Tips: Manage your time wisely...start with the type of questions you feel comfortable...try to attempt all the questions....improve your speed while practicing.
Duration: 45min minutes
Total Questions: 45
Round: Test
Experience: We were given 3 questions to solve in 30 min duration.Later we were told to walk them through our solution . Two of them were on probability(one random variables and the other on basic probability) and one was on estimating the area of an irregular figure , given some tools.
Tips: Get all the doubts regarding the questions clarified .As you have to explain your solution, it would be helpful if you could pen down all the steps clearly ( as it shows them that your thought process is an organised one). Use pictorial representation if needed. When they propose some other method be open to it and be open to any method they propose and be clear with the method you adopted. Even if you didn't arrive at the final answer, try to communicate your idea on solving the problem( most of the times they will listen to what you say).
Duration: 30min minutes
Total Questions: 3
Round: Other Interview
Experience: They were basically looking for quantifiable factors...so think of some quantifiable factors like the number of Times they are available to you in a day and the number of service providers they engage with. etc.,
For the second question again use quantifiable factors which make sense.
Tips: They patiently listened to what I said . So, be calm and don't be in a haste.
Skill Tips: Be a bit quick while solving the Aptitude questions....Know about the company before you go in for the interview process....No need of any prior knowledge in R language ...They just tested my Willingness to learn new things.
Skills: Aptitude Skills, Communication Skills, Structured thought process, Out of the box thinking, Basic programming skills ( very basic)
College Name: IIT KANPUR
I was interviewed before Feb 2021.
(1 Question)
Round duration - 65 minutes
Round difficulty - Easy
There were 2 sections –
Aptitude and Logical Reasoning and MCQ based on Java question ,C++, coding for 20 min and 45 min respectively.
Section A- Not very difficult to clear this round although less time was a problem.
Section B- It contains 15 multiple choice question on c/c++,java and 4 simple coding questions
- Q1.
Cycle Detection in a Singly Linked List
Determine if a given singly linked list of integers forms a cycle or not.
A cycle in a linked list occurs when a node's
nextpoints back to a previous node in the ... - Ans.
Detect if a singly linked list forms a cycle by checking if a node's next pointer points back to a previous node.
Traverse the linked list using two pointers, one moving at double the speed of the other.
If the two pointers meet at any point, there is a cycle in the linked list.
Use Floyd's Cycle Detection Algorithm for O(N) time complexity and O(1) space complexity.
(3 Questions)
Round duration - 75 minutes
Round difficulty - Medium
It was an online coding test in which 3 coding question were given.
- Q1.
Smallest Window Problem Statement
Given two strings,
SandX, your task is to find the smallest substring inSthat contains all the characters present inX.Example:
Input:
S = "abdd", X = "bd"
Outpu...
- Ans.
Find the smallest substring in string S that contains all characters in string X.
Iterate through string S and keep track of characters in X found in a window
Use two pointers to maintain the window and slide it to find the smallest window
Return the smallest window containing all characters in X
- Q2.
Smallest Integer Not Representable as Subset Sum
Given a non-decreasing sorted array
ARRofNpositive numbers, determine the smallest positive integer that cannot be expressed as the sum of elements from... - Ans.
Find the smallest positive integer that cannot be expressed as the sum of elements from any proper subset of a non-decreasing sorted array of positive numbers.
Start with the smallest possible integer that cannot be represented, which is 1.
Iterate through the array and update the smallest integer that cannot be represented.
If the current element is greater than the smallest integer that cannot be represented, return tha...
- Q3.
Minimum Steps for a Knight to Reach Target
Given a square chessboard of size 'N x N', determine the minimum number of moves a Knight requires to reach a specified target position from its initial position...
- Ans.
Calculate the minimum number of moves a Knight needs to reach a target position on a chessboard.
Implement a function that takes knight's starting position, target position, and chessboard size as input
Use breadth-first search algorithm to find the shortest path for the Knight
Consider all possible 8 movements of the Knight on the chessboard
Return the minimum number of moves required for the Knight to reach the target po
(4 Questions)
Round duration - 60 minutes
Round difficulty - Easy
It started with a discussion on the programs given in coding round. They asked me about my interest field after that they directly jumped into Networking, Linux and Ethical Hacking part looking my interest domain. They asked me various question on networking and linux.
Then they asked me to code a simple c program
- Q1.
Reverse Linked List Problem Statement
Given a singly linked list of integers, return the head of the reversed linked list.
Example:
Initial linked list: 1 -> 2 -> 3 -> 4 -> NULL
Reversed link... - Ans.
Reverse a singly linked list of integers and return the head of the reversed linked list.
Iterate through the linked list and reverse the pointers to point to the previous node.
Keep track of the current, previous, and next nodes while reversing the linked list.
Update the head of the reversed linked list as the last node encountered during reversal.
- Q2. What are the port numbers of protocols such as FTP and SMTP?
- Ans.
FTP uses port number 21 and SMTP uses port number 25.
FTP uses port 21 for data transfer and port 20 for control information.
SMTP uses port 25 for email communication.
Understanding port numbers is important for network communication.
- Q3. Can you explain the OSI Model?
- Ans.
The OSI Model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.
The OSI Model stands for Open Systems Interconnection Model.
It consists of seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.
Each layer has specific functions and communicates with the adjacent layers.
Example: Layer 1 (Physical) deals with physi...
- Q4. How do you copy files in Linux?
- Ans.
To copy files in Linux, you can use the 'cp' command.
Use the 'cp' command followed by the source file and destination directory to copy a file.
To copy a directory and its contents, use the '-r' flag with the 'cp' command.
You can also use wildcards like '*' to copy multiple files at once.
Interview Preparation Tips
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
Interview Questionnaire
8 Questions
- Q1. Find out the subset of an array of continuous positive numbers from a larger array whose sum of of the elements is larger in comparision to other subset. eg: {1,2 5 -7, 2 5} .The two subarrays are {1,2,5} ...
- Ans.
Find the subset of an array with the largest sum of continuous positive numbers.
Iterate through the array and keep track of the current sum and the maximum sum seen so far.
If the current element is positive, add it to the current sum. If it is negative, reset the current sum to 0.
Also keep track of the start and end indices of the maximum sum subset.
Return the subset using the start and end indices.
- Q2. Given two classes C1 and C2 which are almost same.(remember not exactly same). You want to choose best among these classes so that it can be use as key in hashmap. What question will you ask regarding two ...
- Q3. You are given two strings s1 and s2.Now, find the smallest substring in s1 containing all characters of s2
- Ans.
Find smallest substring in s1 containing all characters of s2.
Create a hash table of characters in s2
Use sliding window technique to find smallest substring in s1
Check if all characters in s2 are present in the substring
Update the smallest substring if a smaller one is found
- Q4. Questions on OOPS (almost all the concepts were covered like polymorphism, overriding, overloading, inheritance, concept of virtual fxns etc.)
- Q5. Write algo for reversing a linked list
- Ans.
Algorithm to reverse a linked list
Create a new empty linked list
Traverse the original linked list and insert each node at the beginning of the new list
Return the new list
- Q6. What is lazy loading? Advantages and disadvantages of the same?
- Ans.
Lazy loading is a technique used to defer the loading of non-critical resources until they are needed.
Advantages: faster initial page load, reduced bandwidth usage, improved user experience
Disadvantages: increased complexity, potential for slower subsequent page loads, difficulty with SEO
Examples: images, videos, and other media files can be loaded only when they are visible on the screen
- Q7. How ajax works? Difference between angular js and jquery?
- Ans.
Ajax is a technique for creating fast and dynamic web pages. AngularJS is a framework for building dynamic web applications, while jQuery is a library for simplifying HTML DOM traversal and manipulation.
Ajax stands for Asynchronous JavaScript and XML
It allows web pages to be updated asynchronously by exchanging data with a web server behind the scenes
AngularJS is a JavaScript framework that extends HTML with new attrib...
- Q8. Design a traffic light system?
- Ans.
A traffic light system controls the flow of traffic at intersections.
The system consists of three lights: red, yellow, and green.
Each light has a specific duration for which it stays on.
The system also includes sensors to detect the presence of vehicles and pedestrians.
The duration of each light can be adjusted based on traffic patterns.
The system can be connected to a central control system for remote monitoring and m
Interview Preparation Tips
College Name: na
Skills evaluated in this interview
I was interviewed before Feb 2021.
(3 Questions)
Round duration - 60 minutes
Round difficulty - Easy
Technical round with 3 problems based on DSA and Algorithms.
- Q1.
Smallest Integer Not Representable as Subset Sum
Given a non-decreasing sorted array
ARRofNpositive numbers, determine the smallest positive integer that cannot be expressed as the sum of elements from... - Ans.
Find the smallest positive integer that cannot be expressed as the sum of elements from any proper subset of a given array.
Sort the array in non-decreasing order.
Iterate through the array and keep track of the smallest sum that can be formed.
If the next element in the array is greater than the current sum + 1, then the answer is the current sum + 1.
Return the answer as the smallest integer not representable as a subset
- Q2.
Reverse Linked List Problem Statement
Given a singly linked list of integers, return the head of the reversed linked list.
Example:
Initial linked list: 1 -> 2 -> 3 -> 4 -> NULL
Reversed link... - Ans.
Reverse a singly linked list of integers and return the head of the reversed linked list.
Iterate through the linked list and reverse the pointers to point to the previous node instead of the next node.
Use three pointers to keep track of the current, previous, and next nodes while reversing the linked list.
Update the head of the reversed linked list to be the last node encountered during the reversal process.
- Q3.
Smallest Window Problem Statement
Given two strings
SandXcontaining random characters, the task is to find the smallest substring inSwhich contains all the characters present inX.Input:
The first... - Ans.
The task is to find the smallest substring in string S which contains all the characters present in string X.
Iterate through string S and keep track of characters in X using a hashmap
Use two pointers to maintain a sliding window and find the smallest window containing all characters in X
Return the smallest window found
(1 Question)
Round duration - 60 minutes
Round difficulty - Easy
Technical round with questions based on OOPS and Angular.
- Q1. What are the different OOP concepts?
- Ans.
OOP concepts include inheritance, encapsulation, polymorphism, and abstraction.
Inheritance allows a class to inherit properties and behavior from another class.
Encapsulation restricts access to certain components of an object, protecting its integrity.
Polymorphism allows objects to be treated as instances of their parent class.
Abstraction hides the complex implementation details of an object and only shows the necessar
(3 Questions)
Round duration - 60 minutes
Round difficulty - Easy
Questions based on System Design, ajax, jquery were asked.
- Q1. How would you design a traffic light system?
- Ans.
Designing a traffic light system involves creating a system that controls the flow of traffic at intersections.
Divide the traffic light system into three main lights: red, yellow, and green.
Implement timers to control the duration of each light.
Include sensors to detect the presence of vehicles and pedestrians.
Consider implementing a pedestrian crossing signal.
Integrate a central control system to coordinate the timing
- Q2. How does AJAX work?
- Ans.
AJAX allows for asynchronous communication between client and server without needing to reload the entire page.
AJAX stands for Asynchronous JavaScript and XML.
It allows for sending and receiving data from a server without reloading the entire page.
AJAX uses XMLHttpRequest object to make requests to the server.
It can update parts of a web page without requiring a full page reload.
Commonly used in web applications to pro
- Q3. What is the difference between AngularJS and jQuery?
- Ans.
AngularJS is a full-fledged MVC framework for building dynamic web applications, while jQuery is a lightweight library for DOM manipulation and event handling.
AngularJS is a full-fledged MVC framework, providing features like two-way data binding, dependency injection, and routing.
jQuery is a lightweight library primarily used for DOM manipulation and event handling.
AngularJS is suitable for building single-page applic...
Interview Preparation Tips
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
I applied via Campus Placement and was interviewed in Dec 2016. There were 4 interview rounds.
Interview Questionnaire
4 Questions
- Q1. Given a 2d matrix with some D doors and W walls, we need fill distance matrix with minimum distance to the nearest door
- Ans.
Given a 2D matrix with doors and walls, fill distance matrix with minimum distance to the nearest door.
Iterate through the matrix and find the doors
Use Breadth-First Search (BFS) to calculate the minimum distance from each cell to the nearest door
Update the distance matrix with the minimum distances
- Q2. Given a read-only array we want to find kth smallest element in unordered array with O(1) space
- Ans.
Find kth smallest element in unordered array with O(1) space
Use the QuickSelect algorithm to partition the array and find the kth smallest element
Choose a pivot element and partition the array into two subarrays
Recursively partition the subarray that contains the kth smallest element
Repeat until the pivot element is the kth smallest element
Time complexity: O(n) average case, O(n^2) worst case
- Q3. Design question
- Q4. Find friends of friend who already are not friends with you
- Ans.
To find friends of friends who are not already friends with you, we can first find your friends and then their friends excluding yourself and your friends.
Get your list of friends
For each friend, get their list of friends
Exclude yourself and your friends from the final list of friends of friends
Interview Preparation Tips
Experience: It started with an informal talk after he gave his introduction. We talked about the cyclone that was going to be there and what I did in my internship and my previous projects. Then we moved to questions. After solving both questions he asked if I had questions.
Tips: Just walk the interviewer through the solution you're proposing.
Round: Other Interview
Experience: He started with a design question with how to stream an image such that all clients see the same image at the same time. You need to take care of delays, network problems. He kept on adding new elements like compression, streaming, utc time related issues, client rendering delays and so on.
Round: Other Interview
Experience: This was bar-raiser round.
Skills: Design, Algorithms And Data Structures, Graph Theory
College Name: IIT Madras
Skills evaluated in this interview
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