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Hike Interview Questions and Answers
93 Interview questions
Test cases to delete a node from a linked list
Test deleting the first node in the linked list
Test deleting a node in the middle of the linked list
Test deleting the last node in the linked list
Test deleting a node that does not exist in the linked list
Test cases for Facebook posts with priorities
Verify that a user can create a new post
Check that a user can edit their own post
Ensure that a user can delete their own post
Test that a user can like a post
Verify that a user can comment on a post
Debugging a full functionality of an API involves thorough testing, logging, and using debugging tools.
Start by reviewing the API documentation to understand its functionality and expected behavior.
Write test cases to cover all possible scenarios and edge cases.
Use logging to track the flow of data and identify any issues.
Utilize debugging tools like Postman, Swagger, or browser developer tools to inspect API requ...
STLC stands for Software Testing Life Cycle. It is a process used to test software applications from planning to deployment.
STLC consists of phases like requirement analysis, test planning, test design, test execution, and test closure.
As a Senior Software Quality Engineer, I work in different layers of STLC by creating test plans, designing test cases, executing tests, and analyzing results.
I collaborate with dev...
Test cases for Amazon Gift Card
Verify that the gift card balance is correctly displayed
Test redeeming a gift card code
Check if multiple gift cards can be applied to a single purchase
Ensure that expired gift cards are not accepted
Test the functionality of sending a gift card to someone else
I would launch a new onboarding experience UI by conducting user research, designing a user-friendly interface, testing with a small group, and gradually rolling out to all users.
Conduct user research to understand user needs and pain points
Design a user-friendly interface with clear instructions and intuitive navigation
Test the new onboarding experience with a small group of users to gather feedback and make impr...
Android components like Recycler View, View Model, ANR are essential for building robust Android applications.
Recycler View: Efficient way to display large data sets by recycling views as they scroll off the screen.
View Model: Manages UI-related data in a lifecycle-conscious way, surviving configuration changes.
ANR (Application Not Responding): Dialog shown to the user when the main thread of an app is blocked for...
LRU cache is a data structure that stores the most recently used items, discarding the least recently used items when full.
Use a hashmap to store key-value pairs for quick access
Use a doubly linked list to keep track of the order of items based on their usage
When an item is accessed, move it to the front of the list
When the cache is full, remove the least recently used item from the end of the list
Analyze the stack trace to identify the cause of the crash or ANR, then apply debugging techniques to resolve the issue.
Examine the stack trace for the exception type and message to pinpoint the source of the crash.
Use Android Studio's debugger to set breakpoints and inspect variable states leading up to the crash.
Check for common issues like memory leaks, network calls on the main thread, or unhandled exceptions.
...
Find the largest vertical rectangle in an array of strings
Iterate through each column in the array
For each column, find the consecutive vertical rectangles of '1's
Calculate the area of each rectangle and keep track of the largest one
Hike Interview Experiences
32 interviews found
Anonymous
I appeared for an interview in Feb 2017.
Interview Questionnaire
17 Questions
- Q1. Print a linked list in zig zag manner. Link : -----/
- Ans.
Prints a linked list in a zigzag manner, alternating between left-to-right and right-to-left traversal.
1. Traverse the linked list level by level.
2. Use a flag to alternate the direction of printing for each level.
3. For odd levels, print from left to right; for even levels, print from right to left.
4. Example: For linked list 1 -> 2 -> 3 -> 4 -> 5, zigzag output would be: 1, 2, 3, 4, 5 (level 1), 5, 4, 3, ...
- Q2. Design a photo viewer app (Technical architecture) for android device.
- Ans.
A photo viewer app for Android devices.
Use RecyclerView to display a grid of photos
Implement a caching mechanism to improve performance
Support gestures for zooming and swiping between photos
Integrate with a cloud storage service for photo storage and retrieval
Implement a search feature to allow users to find specific photos
- Q3. Given a String, write a function, which will return a boolean. The function will tell you whether one permutation of the string is Palindrome or not
- Ans.
Check if any permutation of a string can form a palindrome by analyzing character frequencies.
A palindrome reads the same forwards and backwards (e.g., 'racecar').
For a string to have a permutation that is a palindrome, at most one character can have an odd frequency.
Example: 'civic' can be rearranged to 'civic' (palindrome).
Example: 'ivicc' can be rearranged to 'civic' (palindrome).
Example: 'hello' cannot be rearrange...
- Q4. Given an array, which consist of natural numbers only. The elements are in random order, tell the first missing natural number in the array. e.g 4,6,3,1,6,8 o.p - 2 1,2,3 O/P - 4
- Ans.
Given an array of natural numbers, find the first missing natural number.
Sort the array and iterate through it to find the first missing number.
Use a hash set to keep track of the numbers present in the array.
The first missing number will be the smallest positive integer not present in the array.
- Q5. Given an Object 'Ball'. How will you transfer this ball object from one thread to another in Android.
- Ans.
To transfer the Ball object from one thread to another in Android, we can use Handler or AsyncTask.
Use Handler to post the Ball object from one thread to another
Create a Handler in the receiving thread and use its post() method to receive the Ball object
Alternatively, use AsyncTask to perform the transfer in the background thread and update the UI thread with the Ball object
- Q6. Methods of IPC in android.
- Ans.
IPC (Inter-Process Communication) methods in Android allow communication between different processes.
Binder: Android's default IPC mechanism, provides high-performance communication between processes.
AIDL (Android Interface Definition Language): Used to define the programming interface for IPC using Binder.
Intents: Used for asynchronous communication between components within an application or between different applica...
- Q7. Implement LRU cache. (Implement you own HashMap meanwhile) Main focus was around this question only.
- Ans.
Implement an LRU cache using a custom HashMap and a doubly linked list for efficient access and eviction.
Use a HashMap to store key-value pairs for O(1) access.
Maintain a doubly linked list to track the order of usage.
On access, move the accessed node to the front of the list.
On insertion, if the cache exceeds capacity, remove the least recently used node from both the list and the HashMap.
Example: For a cache with cap...
- Q8. If you were asked to make your own HashMap, how will you do it. (As it was used in the first question)
- Ans.
A HashMap is a data structure that stores key-value pairs and provides constant time complexity for basic operations.
Implement a hash function to convert keys into array indices
Create an array to store the key-value pairs
Handle collisions using a technique like chaining or open addressing
Implement methods like put(), get(), and remove() to interact with the HashMap
- Q9. Some definitions and basic android questions. AsyncTask, IntentService, Service, internals of ArrayList, etc.
- Q10. Weather App. Given a screen. There is a button and full screen image view. When you press button, a image url is hit, and response contains the file and you have to show on Screen that image. The URL is a...
- Ans.
Create a weather app that fetches and displays an image from a fixed URL upon button press.
Use a button to trigger an API call to the fixed image URL.
Handle the response to extract the image data.
Display the image in a full-screen image view.
Consider using libraries like Glide or Picasso for image loading.
Ensure to handle errors, such as network issues or invalid responses.
- Q11. Extended same question for the adapter with multiple images, (Half of the last round was covered in it). How will you go on handling the multiple request, Handling AsyncTask in Threadpool.
- Q12. You have application which shows list of all contacts, the Name can be duplicated, also it can contain duplicated numbers (0XXXXX, XXXXX etc). How will you go on and do searching in this. Search term can ...
- Ans.
To search for contacts with duplicate names and numbers, create a search function that checks both fields.
Create a function that takes a search term as input
Iterate through the list of contacts
Check if the search term exists in the Name field or Num field
Return the contacts that match the search term
- Q13. Launch Mode of Activity in Android
- Ans.
Launch mode determines how a new instance of an activity is created and added to the task stack.
Standard: Creates a new instance of the activity each time it is launched.
SingleTop: If an instance of the activity already exists at the top of the stack, it will be reused.
SingleTask: If an instance of the activity already exists in the stack, it will be brought to the front and cleared of any activities above it.
SingleIns...
- Q14. How do you do DeepLinking in android.
- Ans.
Deep linking in Android allows linking to specific content within an app, enabling seamless navigation.
Deep linking is achieved by defining intent filters in the app's manifest file.
The intent filter specifies the data format and scheme for the deep link.
Deep links can be triggered from other apps, websites, or even notifications.
Handling deep links involves extracting data from the intent and navigating to the appropr...
- Q15. Java cyclicbarrier.
- Q16. Some Project based questions, What were your challenges, which project you loved most, which one you did not etc......
- Q17. You have to design screen in which at a time on screen 10 nearest restaurants will be shown in a list. How will you go on design this. (Need to keep UI as un interrupted as possible).
- Ans.
Design a screen to show 10 nearest restaurants in a list while keeping the UI uninterrupted.
Use a scrollable list view to display the restaurants
Implement a location-based search algorithm to find the nearest restaurants
Include a search bar to allow users to search for specific restaurants
Display relevant information for each restaurant such as name, rating, and distance
Implement filters or sorting options to allow use...
Interview Preparation Tips
Experience: It was a telephonic round.
Round: Technical Interview
Experience: Director of engineering round
Skills: Android, Java Application Development, Data Strrutures, Algorithm
Skills evaluated in this interview
6 question 1 hard, 3 med, 2 easy
(1 Question)
- Q1. Rainwater PRoblem and multisource bfs
(1 Question)
- Q1. Lru Cache leet problem in deep
- Ans.
Implement a Least Recently Used (LRU) cache
Use a combination of a doubly linked list and a hashmap to efficiently implement the LRU cache
When a new element is accessed, move it to the front of the linked list and update the hashmap
When the cache is full, remove the least recently used element from the end of the linked list and the hashmap
(1 Question)
- Q1. Multithreading is asked in deep
I applied via LinkedIn and was interviewed in Oct 2024. There were 3 interview rounds.
(2 Questions)
- Q1. Explain the architecture of transformer models.
- Q2. What's the role of attention in transformers? Additionally, which one of the two networks has a faster training process - RNNs or transformers?
Duration was 1 hour. First asked verbal technical questions based on deep learning concepts, then asked me to code an easy leet code problem.
This round was with the hiring manager. It was mostly like a technical discussion, but he started by discussing the projects that I had worked on from my resume. Then it eventually turned into a system design type of a round.
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Dec 2024. There was 1 interview round.
There were five coding questions with a duration of 60 minutes. Three were of medium difficulty, and two were easy. The first test involved an undirected graph, the second focused on dynamic programming, the third utilized a priority queue, the fourth covered basic mathematics, and the fifth pertained to array comparison.
I applied via LinkedIn and was interviewed in Sep 2024. There was 1 interview round.
(2 Questions)
- Q1. Why do you want to join Hike
- Ans.
I want to join Hike because of its innovative products and strong company culture.
Innovative products like Hike Messenger and Hike Sticker Chat showcase the company's creativity and vision.
Hike's focus on building a strong company culture that values diversity and inclusion aligns with my own values.
I am excited about the opportunity to work with a talented team and contribute to the growth of a dynamic company like Hi...
- Q2. How would you launch a new onboarding experience UI
- Ans.
I would launch a new onboarding experience UI by conducting user research, designing a user-friendly interface, testing with a small group, and gradually rolling out to all users.
Conduct user research to understand user needs and pain points
Design a user-friendly interface with clear instructions and intuitive navigation
Test the new onboarding experience with a small group of users to gather feedback and make improveme...
Interview Preparation Tips
(3 Questions)
- Q1. What are the different android components and concepts such as Recycler View, View Model, ANR and how do they function internally?
- Ans.
Android components like Recycler View, View Model, ANR are essential for building robust Android applications.
Recycler View: Efficient way to display large data sets by recycling views as they scroll off the screen.
View Model: Manages UI-related data in a lifecycle-conscious way, surviving configuration changes.
ANR (Application Not Responding): Dialog shown to the user when the main thread of an app is blocked for too ...
- Q2. How will you debug and solve the following crash and ANR from the given stack trace?
- Ans.
Analyze the stack trace to identify the cause of the crash or ANR, then apply debugging techniques to resolve the issue.
Examine the stack trace for the exception type and message to pinpoint the source of the crash.
Use Android Studio's debugger to set breakpoints and inspect variable states leading up to the crash.
Check for common issues like memory leaks, network calls on the main thread, or unhandled exceptions.
Utili...
- Q3. Solve this DSA question.
(1 Question)
- Q1. Similar questions to the first round.
(1 Question)
- Q1. Implement an LRU cache
- Ans.
LRU cache is a data structure that stores the most recently used items, discarding the least recently used items when full.
Use a hashmap to store key-value pairs for quick access
Use a doubly linked list to keep track of the order of items based on their usage
When an item is accessed, move it to the front of the list
When the cache is full, remove the least recently used item from the end of the list
Skills evaluated in this interview
Selected
I appeared for an interview in Aug 2024.
It was a good, moderate test.
It was on guesstimates and product cases
(1 Question)
- Q1. What situational questions can you describe regarding your past experience?
- Ans.
I navigated complex projects, collaborated with teams, and adapted to changing requirements to deliver successful product outcomes.
Led a cross-functional team to launch a new feature, resulting in a 20% increase in user engagement.
Faced a tight deadline when a key stakeholder changed requirements; I facilitated a meeting to realign priorities and deliver on time.
Analyzed user feedback to identify pain points, leading t...
(2 Questions)
- Q1. Introduce yourself
- Ans.
I am a software developer with 5 years of experience in Java, Python, and SQL.
5 years of experience in Java, Python, and SQL
Strong problem-solving skills
Experience working in Agile development environment
- Q2. Short term goals
Selected
I applied via Approached by Company and was interviewed in Oct 2023. There were 2 interview rounds.
(2 Questions)
- Q1. What is your name ?
- Q2. What kind of job do you want to do
Interview Preparation Tips
- Data Entry
Shruti Sharma
(4 Questions)
- Q1. One to one questions
- Q2. Sell a water bottle
- Ans.
Stay hydrated on the go with our durable and stylish water bottle.
Highlight the durability of the water bottle
Emphasize the convenience of staying hydrated while on the go
Mention the stylish design to appeal to fashion-conscious customers
- Q3. Sell a laptop cover
- Ans.
Protect your laptop in style with our sleek and durable laptop cover.
Made from high-quality materials to ensure maximum protection
Available in various sizes to fit different laptop models
Stylish designs to suit your personal taste
Easy to clean and maintain for long-lasting use
- Q4. Give your introduction
- Ans.
Dynamic sales professional with a proven track record in driving revenue and building strong client relationships.
Over 5 years of experience in B2B sales, consistently exceeding targets by 20%.
Skilled in identifying customer needs and providing tailored solutions, such as implementing a CRM system that increased client retention by 30%.
Strong communication and negotiation skills, demonstrated by closing a $1M deal with...
Selected
I applied via Company Website and was interviewed before Nov 2023. There were 4 interview rounds.
(2 Questions)
- Q1. Write the Test Cases about Amazon Gift Card
- Ans.
Test cases for Amazon Gift Card
Verify that the gift card balance is correctly displayed
Test redeeming a gift card code
Check if multiple gift cards can be applied to a single purchase
Ensure that expired gift cards are not accepted
Test the functionality of sending a gift card to someone else
- Q2. How to debug a full functionality of an API
- Ans.
Debugging a full functionality of an API involves thorough testing, logging, and using debugging tools.
Start by reviewing the API documentation to understand its functionality and expected behavior.
Write test cases to cover all possible scenarios and edge cases.
Use logging to track the flow of data and identify any issues.
Utilize debugging tools like Postman, Swagger, or browser developer tools to inspect API requests ...
(2 Questions)
- Q1. What is STLC and how you work in different layers of it?
- Ans.
STLC stands for Software Testing Life Cycle. It is a process used to test software applications from planning to deployment.
STLC consists of phases like requirement analysis, test planning, test design, test execution, and test closure.
As a Senior Software Quality Engineer, I work in different layers of STLC by creating test plans, designing test cases, executing tests, and analyzing results.
I collaborate with develope...
- Q2. Write the test cases regarding Facebook posts and set their priorities.
- Ans.
Test cases for Facebook posts with priorities
Verify that a user can create a new post
Check that a user can edit their own post
Ensure that a user can delete their own post
Test that a user can like a post
Verify that a user can comment on a post
(2 Questions)
- Q1. Write the test cases to delete a node from a linked list
- Ans.
Test cases to delete a node from a linked list
Test deleting the first node in the linked list
Test deleting a node in the middle of the linked list
Test deleting the last node in the linked list
Test deleting a node that does not exist in the linked list
- Q2. How will you react if you get a critical issue, on the day of release?
(2 Questions)
- Q1. What are your expectations
- Ans.
I expect challenging projects, opportunities for growth, supportive team, and work-life balance.
Challenging projects that allow me to utilize my skills and knowledge
Opportunities for professional growth and advancement within the company
Supportive team environment where collaboration and communication are valued
Work-life balance to ensure I can perform at my best both at work and in personal life
- Q2. How early you can join
- Ans.
I can join within 2 weeks of receiving an offer.
Provide notice to current employer
Complete any necessary paperwork or background checks
Prepare for transition to new role
Skills evaluated in this interview
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