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Hike Interview Questions and Answers
90 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
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
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
Hike Interview Experiences
32 interviews found
Anonymous
I appeared for an interview in Feb 2017.
Interview Questionnaire
19 Questions
- Q1. Design an photo viewing app which will show images from the disk in the list, and one item in the list should take half of the screen. (Android app design question, have to explain all the components used ...
- Ans.
An Android photo viewing app with a list of images from disk, one taking half the screen.
Use RecyclerView to display the list of images
Use a custom adapter to bind the images to the RecyclerView
Use a GridLayoutManager with span count of 2 to achieve the half-screen effect
Load images from disk using a library like Glide or Picasso
Implement click listeners to handle item selection and display the selected image
- Q2. Print a linked list in a zig zag manner. -----/
- Ans.
Prints a linked list in a zigzag pattern, alternating between left-to-right and right-to-left traversal.
1. Traverse the linked list level by level.
2. Use a stack to reverse the order of nodes at each level.
3. Print nodes from the stack for right-to-left traversal.
4. Alternate between left-to-right and right-to-left for each level.
Example: For list 1 -> 2 -> 3 -> 4 -> 5, output: 1, 2, 3, 4, 5 (level 1), 5, 4...
- 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.
- 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 in random order, find the first missing natural number.
Sort the array in ascending order
Iterate through the sorted array and compare each element with its index
If the element is not equal to its index + 1, return the missing number
If all elements are in order, return the next natural number after the last element
- Q5. Java/Android : Given an Object 'Ball'. How will you transfer this ball object from one thread to another. Same ball object pass from Thread to MainThread.
- Ans.
To transfer the Ball object from one thread to another, we can use Handler or AsyncTask.
Use Handler to post a Runnable to the main thread's message queue
Use AsyncTask to perform background operations and update the UI on the main thread
Pass the Ball object as a parameter or use a shared variable between threads
- Q6. How does looper/handlers work internally when you pass object from one thread to another.
- Ans.
Looper/handlers allow passing objects between threads in Android.
Looper is a message loop that runs in a thread and processes messages from a message queue.
Handlers are used to send messages to the message queue of a looper.
When an object is passed from one thread to another using a handler, it is encapsulated in a message and added to the receiving thread's message queue.
The receiving thread's looper then processes th...
- Q7. Methods of IPC in android.
- Ans.
IPC (Inter-Process Communication) methods in Android allow communication between different processes.
Binder: Android's native IPC mechanism, used for communication between processes.
Intents: Used for communication between components within the same application or between different applications.
Content Providers: Allow sharing data between applications using a common interface.
Broadcasts: Used for asynchronous communica...
- Q8. 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 the list and HashMap.
Example: For a cache of capacity 2, ac...
- Q9. If you were asked to make your own HashMap, how will you do it. (As it was used in the first question)
- Ans.
To create my own HashMap, I would use an array of linked lists to handle collisions and implement key-value pairs using a hash function.
Create an array of linked lists to store the key-value pairs
Implement a hash function to generate an index for each key
Handle collisions by adding elements to the linked list at the corresponding index
Support operations like put(key, value), get(key), and remove(key)
- Q10. Some definitions and basic android questions. AsyncTask, IntentService, Service, internals of ArrayList, etc.
- Q11. Design a weather app. (One image for every weather is there on a server) Take care of half downloaded image, try not to consume data of user again.
- Ans.
A weather app that displays images for different weather conditions, taking care of half downloaded images and minimizing data consumption.
Implement image caching to store downloaded images locally
Check if the image is already downloaded before making a network request
Use a progress bar to indicate the download status of the image
Handle cases where the download is interrupted or incomplete
Implement a mechanism to resum...
- Q12. Extended same question for the adapter with multiple images. Do not unncessary download if user has scrolled fast. - How will you cancel the request when the user has scrolled, and what will you do when ...
- Q13. You have application which shows list of all contacts, the Name/Numbers can be duplicated. How will you go on and do searching in this. Search term can either exist in Name or in Number.
- Ans.
To search for contacts with duplicate names or numbers, iterate through the list and compare each contact's name and number with the search term.
Iterate through the list of contacts
Compare the search term with each contact's name and number
Return the contacts that match the search term
- Q14. Question based on Java cyclic barrier.
- Q15. Launch Mode of Activity.
- Ans.
Launch mode determines how an activity is launched and how it behaves in the task stack.
Standard: Creates a new instance of the activity on each launch.
SingleTop: Reuses the existing instance if it's already at the top of the stack.
SingleTask: Creates a new task and places the activity at the root of the task.
SingleInstance: Creates a new task and places the activity as the only one in the task.
- Q16. How do you do DeepLinking in android.
- Ans.
Deep linking in Android allows users to navigate directly to specific content within an app.
Deep linking is achieved by defining intent filters in the app's manifest file.
The intent filter specifies the URL scheme and host that the app can handle.
When a deep link is clicked, Android checks if any app can handle the URL and prompts the user to choose.
The chosen app receives the deep link data in the intent's data field.
...
- Q17. Some Project based questions, What were your challenges, which projecct you loved most, which one you did not etc......
- Q18. You have to design screen in which at a time on screen 10 nearest restaurants will be shown in a list. The screen will keep adding more options while scrolling. Scroll in the list should be uninterrupted...
- Ans.
Design a screen to show 10 nearest restaurants in a list with uninterrupted scrolling.
Use a RecyclerView to display the list of restaurants
Implement a custom adapter to populate the data in the list
Use a location service to get the user's current location
Sort the restaurants based on their distance from the user's location
Load more restaurants as the user scrolls to the end of the list
- Q19. Design the ImageDownloader, with efficiently handling parallel API calls.
- Ans.
ImageDownloader efficiently handles parallel API calls.
Use a thread pool to manage parallel API calls.
Implement caching to avoid redundant API calls.
Use a priority queue to prioritize image downloads.
Optimize network requests by using HTTP/2 or multiplexing.
Consider using a library like Picasso or Glide for image loading and caching.
Interview Preparation Tips
Experience: Skype round, coding on collabedit (1 Hour)
Round: Technical Interview
Experience: On Site interview 1 and half hour round.
Tips: Java and Android threading concepts are needed.
Round: Technical Interview
Experience: This round was all about android and internals of collections in Java.
OnSite 1 hour round.
Round: Technical Interview
Experience: Purely for checking the design knowledge of a person. (1.5 hour round)
Round: Technical Interview
Experience: Interview with director of engineering.
Skills: Android Development, Java Programming, Data Structures And Algorithms
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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