Nokia Intern Interview Questions, Process, and Tips

General aptitude ,os,DBMS,coding output

Q1. Simple coding on python lists
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Q2. List comprehension
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The 1st round is a written test. The written test consists of some Aptitude questions,technical and 2 coding questions.

Q1. What is Stack? What are the applications of Stack? Fibonacci Series code.
Ans. 
A stack is a linear data structure that follows the Last-In-First-Out (LIFO) principle.
• Applications include function call stack, undo-redo operations, infix to postfix conversion, and backtracking algorithms.

• Push and pop operations are used to add and remove elements from the stack, respectively.

• Fibonacci series can be implemented using a stack or recursion.

• Stacks can be implemented using arrays or linked lists.
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Q2. Toughest challenges that you have faced in your life? How did u overcome it?
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Online assessment ( coding , aptitude , mcq)

Q1. Dsa , project , OS
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Q1. What is garbage collection?
Ans. 
Garbage collection is an automatic memory management process that frees up memory occupied by objects that are no longer in use.
• Garbage collection is a process of identifying and freeing up memory that is no longer in use by the program.

• It helps prevent memory leaks and improves program performance.

• Examples of garbage collection include Java's automatic garbage collection and Python's reference counting and garbage col...read more
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Q2. Difference between foreign key and primary key
Ans. 
Primary key uniquely identifies a record in a table, while foreign key refers to a field in another table.
• Primary key is used to enforce data integrity and ensure uniqueness of records.

• Foreign key is used to establish a relationship between two tables.

• A table can have only one primary key, while it can have multiple foreign keys.

• Primary key is always indexed, while foreign key may or may not be indexed.

• Example: In a da...read more
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Q3. One coding question about trees
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