Tudip Technologies Android Developer Interview Questions and Answers

Group discussion round with their tl and developer

Asking for android studio project with local DB

Q1. Git pull vs pull request?
Ans. 
Git pull is used to fetch and merge changes from a remote repository, while pull request is a way to propose changes to a repository.
• Git pull is used to update a local repository with changes from a remote repository.

• Pull request is a way to propose changes to a repository by creating a branch, making changes, and requesting the changes to be merged into the main branch.

• Git pull is a command used in the terminal, while...read more
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Q2. What is IPC and RPC?
Ans. 
IPC stands for Inter-Process Communication and RPC stands for Remote Procedure Call.
• IPC is a mechanism that allows communication between processes running on the same or different devices.

• RPC is a protocol that enables one program to request a service from another program on a remote machine.

• IPC can be achieved through shared memory, message passing, and pipes.

• RPC uses a client-server model and can be implemented using...read more
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Q3. How to detect loop in linked list?
Ans. 
To detect loop in linked list, use Floyd's cycle-finding algorithm.
• Create two pointers, slow and fast, and initialize both to the head of the linked list.

• Move slow pointer by one node and fast pointer by two nodes.

• If there is a loop, the two pointers will eventually meet.

• If there is no loop, the fast pointer will reach the end of the linked list.

• Time complexity: O(n), Space complexity: O(1)
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Q4. Print prime numbers between 100 to 1,00,000
Ans. 
Print prime numbers between 100 to 1,00,000
• Start with a loop from 100 to 100000

• Check if the current number is prime or not

• If prime, print the number
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They ask me to print a pattern based questions

MCQ test with basic aptitude.

Medium level 2 Questions
Easy level 1 question

Q1. What's your favorite topic this technology? oops concepts, DSA, basics of technology, projects you've done.
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Q1. What is daemon Thread? what is data Class? Garbage Collector? Activity Lifecycle? what is Fragment? what took you used for App Debugging ? how to revert changes pushed in GIT? write down example of Data cl...read more
Ans. 
Questions related to Android development concepts and practices.
• Daemon thread is a low priority thread that runs in the background.

• Data class is a class that is used to hold data and provides default implementations of common methods like equals, hashCode, and toString.

• Garbage collector is a mechanism that automatically frees up memory by removing objects that are no longer in use.

• Activity lifecycle refers to the vario...read more
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Q1. 20 MCQs related to React Native, JavaScript, and Typescript. You're given 15 minutes to answer them.
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Q1. 1. What is git rebase used for? 2. What is Flipper used for? 3. What is useCallback? Explain with an example. 4. Is "let setState = useState()" valid syntax? How would you set state and print state with th...read more
Ans. 
Answers to various technical questions related to React Native development.
• 1. Git rebase is used to reapply commits on top of another base tip. It is used to maintain a clean and linear project history.

• 2. Flipper is a mobile debugging tool for iOS and Android apps. It allows developers to inspect and debug their apps in real-time.

• 3. useCallback is a hook in React that returns a memoized callback function. It is used to...read more
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Group discussion round with their tl and developer

Asking for android studio project with local DB