Emerson Electric Co. Software Developer Interview Questions and Answers

30min and ask one coding question

30min and ask 2 coding question

Q1. Can you explain the difference between a stack and a queue and provide a real-world example where each would be used.
Ans. 
A stack is a Last In First Out (LIFO) data structure, while a queue is a First In First Out (FIFO) data structure.
• Stack: LIFO - Last In First Out. Example: browser history where the last page visited is the first to be accessed.

• Queue: FIFO - First In First Out. Example: a line at a grocery store where the first person in line is the first to be served.
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Q2. Given an array of integers, write a function to find the two numbers that add up to a specific target. How would you optimize this solution?
Ans. 
Function to find two numbers in array that add up to target. Optimize solution.
• Use a hash map to store each number and its index as you iterate through the array.

• For each number, check if the difference between the target and the number exists in the hash map.

• Return the indices of the two numbers that add up to the target.
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Q1. What are your Skills?
Ans. 
I have strong skills in programming languages such as Java, Python, and C++, as well as experience with database management and software development methodologies.
• Proficient in Java, Python, and C++ programming languages

• Experience with database management systems like MySQL and MongoDB

• Familiarity with software development methodologies such as Agile and Scrum
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Q2. What is the current role & responsibilities
Ans. 
As a Software Engineer, my current role involves designing, developing, testing, and maintaining software applications.
• Designing software solutions based on client requirements

• Developing code using programming languages like Java, Python, or C++

• Testing software to ensure functionality and performance

• Maintaining and updating existing software applications

• Collaborating with team members to troubleshoot and resolve issues

• ...read more
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Q1. Salary expectation
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Q2. General questions
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Q1. What is const and volatile
Ans. 
const and volatile are keywords in C/C++ used to define constants and variables that can change unexpectedly.
• const keyword is used to define constants that cannot be changed during program execution

• volatile keyword is used to indicate that a variable may be changed unexpectedly, often by hardware or other threads

• const volatile is used when a variable is both constant and volatile, meaning it cannot be changed and may b
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Q1. Observables vs promises Lifecycle hooks Pipes
Ans. 
Observables are used for handling asynchronous operations in a stream-like manner, promises are for handling a single async operation, and lifecycle hooks are methods that allow you to tap into the lifecycle of a component in Angular.
• Observables are used in Angular for handling asynchronous operations in a stream-like manner, allowing you to work with data over time.

• Promises are used for handling a single asynchronous ...read more
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Q1. Lazy loading Dependency injection
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Aptitude+ coding questions ,easy to moderate level questions

Q1. Situation based questions by recording answers upto 3 min
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Q1. Basics of Java and c questions Difference between finalze and final Instances of abstract class
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