Hitachi Digital Interview Questions and Answers

Psychological question answers

Q1. Physics based questions
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Q1. Some engineering mathematics and control system.
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It included mcqs and multiple coding questions.

Q1. Yours technical skillls related questions
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Q2. Managerial questions
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Q1. What do you hope to achieve in this role?
Ans. 
I hope to gain valuable hands-on experience, develop new skills, and contribute positively to the team.
• Gain practical experience in the field

• Develop new skills and knowledge

• Contribute positively to the team by completing tasks efficiently and effectively
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Q1. Tell me about your Project and why you use this tech for this project.
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Q2. Find the mid element in the link list.
Ans. 
To find the mid element in a linked list, use two pointers - one moving at double the speed of the other.
• 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 element pointed to by the slow pointer at this point is the mid element of the linked list.
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Q1. Have you worked on swift
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Q2. What is a class
Ans. 
A class is a blueprint for creating objects in object-oriented programming.
• Classes define the properties and behaviors of objects.

• Objects are instances of classes.

• Classes can inherit properties and behaviors from other classes.

• Encapsulation, inheritance, and polymorphism are key concepts in class-based programming.
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Q1. Write code for star paattern
Ans. 
Code for star pattern using nested loops
• Use nested loops to print the desired pattern

• Outer loop controls the number of rows and inner loop controls the number of stars in each row

• Example: for a pattern with 5 rows, the code would involve two nested loops to print stars in a pyramid shape
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Q2. What is linked list
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A linked list is a data structure where each element is a separate object, connected to the next element by a pointer.
• Consists of nodes where each node contains data and a reference to the next node

• Dynamic in size and can grow or shrink during execution

• Common operations include insertion, deletion, and traversal

• Example: Singly linked list, Doubly linked list, Circular linked list
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Q3. Differnce between public private
Ans. 
Public and private sectors differ in ownership, funding, and management.
• Public sector is owned and operated by the government, while private sector is owned and operated by individuals or companies.

• Public sector is funded by taxpayer money, while private sector is funded by investors or owners.

• Public sector is managed by government officials, while private sector is managed by business owners or executives.
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Q4. Whats is oops and protcols
Ans. 
OOPs stands for Object-Oriented Programming and protocols are a set of rules for communication between devices.
• OOPs is a programming paradigm that uses objects and classes to design applications.

• Protocols are a set of rules that define how data is transmitted between devices.

• In OOPs, objects have attributes and methods that define their behavior.

• Examples of OOPs languages include Java, C++, and Python.

• Examples of proto
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Q1. Total time waste quesrtions
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Q2. Basic programing questions as em was having very less knowledge
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Q1. First round is the aptitude round with basic aptitude questions
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Q2. Second ruond was the puzzles 1. a girl is dreaming that she is surrounded by 13 candies in circular way now she eats every 13th candy in every iteration. out of 13 there are 12 red and 1 white candies. now...read more
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Q3. Third round was coding round in which code was given and we had to write what is the purpose of the anonymous functions presend in the code.
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Q4. In the final round it is an interview.
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