IBS Software Services IOS Application Developer Interview Questions and Answers

Basic mathematics and logical question

Basic DSA like Array, link list

Q1. Activity lifecycle
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Q2. Kotlin basics, fragments, payment gateway
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Q1. Solid principle
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Q1. Architecture Design
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Q2. Data Structures
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Q1. Salary discussion
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Q1. Android Memory Leaks
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Q2. Android architecture
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Q3. Kotlin basics questions
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Q1. Questions related to kotlin coroutines in depth questions, scenario based questions
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Q2. Solid principles
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Q3. Architecture patterns
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Q4. Kotlin coroutine
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Q5. Unit testing, espresso scenario based
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Q1. Hr asked about total experience
Ans. 2 years of experience in react native developer
Answered by Akleem Ahmad
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Q2. Hr asked about current CTC and expectations and availablity for joining technical round
Ans. Telling her my expectation and current CTC and time for join the interview
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Q1. What is state ,props, redux, asyncstorage,how to upload a build on test flight
Ans. 
State, props, Redux, AsyncStorage are key concepts in React Native. Uploading a build on TestFlight involves creating an IPA file and using Xcode.
• State is used to manage data within a component and can be updated using setState.

• Props are read-only data passed from parent to child components.

• Redux is a state management library for managing application state.

• AsyncStorage is a simple, unencrypted, asynchronous, persistent...read more
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Q2. He assisted my same task on js like what is output of following questions and ask difference between map, forEach, for loop etc
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Q1. What is the difference between interface and abstract class?
Ans. 
Interface defines only method signatures while abstract class can have both method signatures and implementations.
• An interface can be implemented by multiple classes while a class can only extend one abstract class.

• An abstract class can have constructors while an interface cannot.

• An abstract class can have non-abstract methods while an interface can only have abstract methods.

• An abstract class can have instance variabl...read more
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Q2. What is singleton class?
Ans. 
A singleton class is a class that can only have one instance created at a time.
• Singleton classes are often used for managing resources that should only have one instance, such as a database connection or a configuration file.

• They are implemented by making the constructor private and providing a static method to access the single instance.

• Singleton classes can also implement interfaces and inherit from other classes.

• Exa...read more
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Q1. They asked me about the frameworks and overall architecture in iOS, how to implement tables, create views and auto layout.
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