TCS IOS Developer Interview Questions and Answers for Freshers

Q1. What is optional, difference between struct and class?
Ans. 
Optional is a type in Swift that can hold a value or be nil. Struct and class are both used to define custom data types.
• Optional is denoted by a question mark (?) and is used to handle nil values.

• Structs are value types and are passed by value, while classes are reference types and are passed by reference.

• Structs have a default memberwise initializer, while classes do not.

• Classes can inherit from other classes, while s...read more
Answered by AI
Add your answer

Easy aptitude english and logical reasoning.

Q1. Tell me About yourself
Ans. 
I am an experienced IOS Developer with a passion for creating innovative and user-friendly mobile applications.
• Over 5 years of experience in IOS app development

• Proficient in Swift and Objective-C programming languages

• Strong understanding of mobile UI/UX design principles

• Familiar with RESTful APIs and third-party libraries

• Developed and launched multiple successful apps on the App Store
Answered by AI
Add your answer
Q2. Swift advantages and disadvantages
Ans. 
Swift is a powerful and modern programming language for iOS development, but it has its own set of advantages and disadvantages.
• Advantages: faster performance, safer code with optionals, easier to read and write code, interoperability with Objective-C

• Disadvantages: steep learning curve for beginners, limited community support compared to other languages like Java or Python
Answered by AI
Add your answer

Q1. Salary expectation and current salary
Add your answer

Q1. Access specifiers
Add your answer
Q2. Write code to get distinct members in array with same sequence
Ans. 
Use a Set to get distinct members in array while maintaining sequence.
• Iterate through the array and add each element to a Set to automatically remove duplicates.

• Create a new array by iterating through the Set to maintain the original sequence.
Answered by AI
Add your answer

Q1. Define Operation queue
Ans. 
Operation queue is a way to manage and execute tasks asynchronously in iOS applications.
• Operation queue allows you to add tasks (operations) to a queue and execute them in the background.

• It provides control over the execution of tasks, such as setting dependencies between tasks.

• Operations can be added to the queue with different priorities, allowing for better task management.

• Example: NSOperationQueue is a class in iOS
Answered by AI
Add your answer
Q2. Define optionals in swift
Ans. 
Optionals in Swift are used to represent a value that may or may not exist.
• Optionals are denoted by adding a question mark (?) after the type declaration.

• They can either contain a value or be nil.

• Optionals must be unwrapped before using their value to avoid runtime errors.

• Optional binding and optional chaining are commonly used with optionals.
Answered by AI
Add your answer

Q1. Basic of Swift and Objective C
Add your answer

Q1. Pure Technical Asking about your Project
Add your answer

Q1. Salary Descussion with HR and normal HR Question
Add your answer

Q1. 1.Difference between class and struct?
Ans. 
Classes are reference types while structs are value types.
• Classes are passed by reference while structs are passed by value.

• Classes support inheritance while structs do not.

• Classes have a default initializer while structs do not.

• Classes can be deinitialized while structs cannot.

• Examples of classes include UIView and UIViewController while examples of structs include CGRect and CGPoint.
Answered by AI
Add your answer
Q2. Solid Principles, Inheritance and behavioral questions.
Add your answer