Apple Intern Interview Questions and Answers

It contains 35 question

Q1. Explain the project
Ans. 
The project is a web application that helps users track their daily water intake and reminds them to stay hydrated.
• Users can input their daily water consumption and set goals for themselves.

• The application sends notifications to remind users to drink water throughout the day.

• Users can view their water intake history and track their progress over time.
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Q2. Write the code for even number
Ans. 
Code to identify even numbers
• Use the modulo operator (%) to check if a number is divisible by 2

• If the remainder is 0, then the number is even

• Example: int num = 6; if(num % 2 == 0) { // num is even }
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Q1. Introduce yourself
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for coding and problem-solving.
• Recent graduate with a degree in Computer Science

• Passionate about coding and problem-solving

• Strong communication and teamwork skills

• Experience with programming languages such as Java, Python, and C++
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Q2. Some situational question
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Q1. Explain LinkedList
Ans. 
LinkedList is a data structure where each element is connected to the next element through a pointer.
• Each element in a LinkedList is called a node and contains data and a reference to the next node.

• LinkedList allows for dynamic size and efficient insertion and deletion of elements.

• Example: LinkedList can be used to implement a stack or queue data structure.
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Q2. Explain OOPS concept
Ans. 
OOPS (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPS focuses on creating objects that interact with each other to solve problems

• It involves concepts like inheritance, encapsulation, polymorphism, and abstraction

• Example: Inheritance allows a class to inherit properties and behavior from another class
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Prepare thoroughly for aptitude...

Q1. Write code of multiplication
Ans. 
Code for multiplication operation in programming languages
• Use the * operator in most programming languages to perform multiplication

• Example: int result = num1 * num2;

• Remember to handle overflow cases if working with large numbers
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Q2. Say ur semester subjects
Ans. 
My semester subjects include Computer Science, Mathematics, and Economics.
• Computer Science - Programming, Algorithms, Data Structures

• Mathematics - Calculus, Linear Algebra, Statistics

• Economics - Microeconomics, Macroeconomics, Econometrics
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Q3. Introduce yourself
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for coding and problem-solving.
• Recent graduate with a degree in Computer Science

• Passionate about coding and problem-solving

• Experience with programming languages such as Java, Python, and C++
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Q1. Introduce yourself
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for coding and problem-solving.
• Recent graduate with a degree in Computer Science

• Passionate about coding and problem-solving

• Strong communication and teamwork skills
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Q2. Asked detail abt hobbies
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3 medium level DSA questions based on Arrays, priority queue and DP

Q1. Discussion on Projects, one medium DSA question and operating system
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Q2. Questions based on Implementation of Stacks, queues and linked list, discussion on projects
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Q1. Why do you want to Join company
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Q2. Basic strength weakness questions quite easy, lasted on a phone call for 10 mins
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Q1. Probability of bit error in a binary symmetric channel
Ans. 
The probability of bit error in a binary symmetric channel can be calculated using the formula P = 1/2 * erfc(sqrt(Eb/N0)), where erfc is the complementary error function.
• Probability of bit error in a binary symmetric channel is influenced by the signal-to-noise ratio (Eb/N0).

• The error function erfc is used to calculate the probability of bit error.

• The formula for calculating the probability of bit error is P = 1/2 * e
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3 questions medium leetcode

Q1. Dfs write whole pseudo code.
Ans. 
Depth First Search (DFS) pseudo code
• Initialize a stack to keep track of nodes to visit

• Start with the initial node and push it onto the stack

• While the stack is not empty, pop a node from the stack and visit its neighbors

• Push unvisited neighbors onto the stack

• Repeat until all nodes are visited
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Q2. Bfs write whole pseudo code.
Ans. 
BFS (Breadth First Search) algorithm pseudo code
• Start by enqueueing the starting node

• While the queue is not empty, dequeue a node and process it

• Enqueue all adjacent nodes that have not been visited yet

• Repeat until all nodes have been visited
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Q3. Find the middle of the linked list.
Ans. 
To find the middle of a linked list, use the slow and fast pointer technique.
• Initialize two pointers, slow and fast, both pointing to the head of the linked list.

• Move the slow pointer by one step and the fast pointer by two steps until the fast pointer reaches the end of the list.

• The position of the slow pointer at this point will be the middle of the linked list.
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Q1. Cv grilling some questions on projects.
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