Falabella Interview Questions, Process, and Tips

Good 2 set of problems

Elitmus test in second round

Q1. Basic string questions
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Q2. Sub array question , easy in leetcode
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Q1. Related to Js topics
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Q1. What is Multithreading What is a Load Balancer What is OS Scheduler, LRU cache, etc.?
Ans. 
Multithreading is the ability of a CPU to execute multiple threads concurrently. Load balancer distributes incoming network traffic across multiple servers. OS Scheduler manages the execution of processes. LRU cache is a cache eviction policy.
• Multithreading allows multiple threads to run concurrently on a single CPU core.

• Load balancer evenly distributes incoming network traffic across multiple servers to optimize resou...read more
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Hackerrank coding test, depending on domain. Around 15 MCQ and two coding questions.

Q1. What is activity vs fragment
Ans. 
Activity is a single screen with a user interface, while Fragment is a modular section of an activity.
• Activity represents a single screen with a user interface.

• Fragment is a modular section of an activity that can be combined with other fragments to create a multi-pane UI.

• Activities are used to handle user interactions and manage the lifecycle of an app.

• Fragments are reusable components that can be added or removed fro...read more
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Q2. What are coroutines, how do they work internally
Ans. 
Coroutines are a concurrency design pattern in Kotlin that allow for asynchronous programming.
• Coroutines are lightweight threads that can be used to perform non-blocking operations.

• They are based on the concept of suspending functions, which can be paused and resumed.

• Coroutines use a dispatcher to determine which thread or thread pool to run on.

• They can be used to simplify asynchronous code and avoid callback hell.

• Coro...read more
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Q3. What is suspend function
Ans. 
A suspend function is a function that can be paused and resumed later without blocking the main thread.
• Suspend functions are used in Kotlin coroutines to perform asynchronous operations.

• They are defined using the 'suspend' keyword.

• Suspend functions can only be called from other suspend functions or from coroutine scopes.

• They can be used to perform network requests, database operations, or any other long-running tasks w...read more
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Q1. RxJava vs coroutines
Ans. 
RxJava is a library for composing asynchronous and event-based programs using observable sequences. Coroutines are a new way of writing asynchronous code in a sequential manner.
• RxJava is based on the Observer pattern and uses operators to transform and combine observable sequences.

• Coroutines are lightweight threads that can be suspended and resumed, allowing for sequential and structured concurrency.

• RxJava is widely us...read more
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Q2. Fragment lifecycle
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Q1. How will you handle prod defects
Ans. 
Prod defects are handled by identifying, prioritizing, and resolving them in a systematic manner.
• Create a process for reporting and tracking defects

• Prioritize defects based on impact and severity

• Assign resources to investigate and fix defects

• Perform root cause analysis to identify the underlying issues

• Implement fixes and thoroughly test them before deploying

• Communicate with stakeholders about the status and resolution
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