GE Software Developer Edison Interview Questions and Answers

Q1. Differentiate between RISC and CISC
Ans. 
RISC stands for Reduced Instruction Set Computing and CISC stands for Complex Instruction Set Computing.
• RISC processors have a smaller set of simple instructions, while CISC processors have a larger set of complex instructions.

• RISC processors typically execute instructions in one clock cycle, while CISC processors may require multiple clock cycles.

• RISC processors rely on optimizing compilers for performance, while CISC...read more
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Q2. Define and differentiate interpreter and compiler
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Interpreter translates code line by line while compiler translates entire code at once.
• Interpreter: translates code line by line, slower execution, easier debugging (e.g. Python)

• Compiler: translates entire code at once, faster execution, harder debugging (e.g. C++)
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Basic leetcode problems

Q1. Basic java questions
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Q1. Coding samples and expected output
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Q1. Virtual functions Polymorphism Runtime polymorphism compile time polymorphism Constructor Destructor Destructor overloading possible why Deep copy vs shallow copy Program for operator overloading Program f...read more
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Q1. Working of project
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Q1. Discussion about package
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Hacker Rank code testing. Now it is removed.

Q1. C/C++ coding round. Simple questions related to memory segments.
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Q1. Thread synchronisation, internal architecture of Linux.
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Q1. Where do you see yourself after 5 years ? What is your future aspirations?
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Q1. What is the lifecycle of React hooks?
Ans. 
React hooks lifecycle includes initialization, rendering, updates, and cleanup.
• Hooks are called in the order they are defined in the component function.

• useState and useEffect are commonly used hooks in React.

• Hooks like useEffect can be used for data fetching, subscriptions, or manually changing the DOM.

• The cleanup function in useEffect can be used to clean up any resources or subscriptions.

• Hooks allow for more flexible
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Q2. What is the process to fetch data from an API?
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To fetch data from an API, you need to send a request to the API endpoint and process the response.
• Send a request to the API endpoint using HTTP methods like GET, POST, PUT, DELETE.

• Include any required parameters or headers in the request.

• Receive the response from the API, which usually comes in JSON or XML format.

• Parse the response data to extract the information you need.

• Handle any errors or exceptions that may occur
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Q3. Hooks and custom hooks
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Q4. Difference between useeffect and usereducer
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useEffect is used for side effects in functional components, while useReducer is used for managing state in complex components.
• useEffect is used for handling side effects in functional components

• useReducer is used for managing state in complex components

• useEffect is similar to componentDidMount and componentDidUpdate in class components

• useReducer is similar to useState but for more complex state management

• useEffect can...read more
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Q5. Html5 and css3 questions
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Q1. Question based on project architecture
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Q2. Access specifiers
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Q1. Find the second highest salary in sql
Ans. 
Use SQL query with ORDER BY and LIMIT to find the second highest salary.
• Use SELECT statement to retrieve salary column from the table.

• Use ORDER BY clause to sort the salaries in descending order.

• Use LIMIT 1,1 to get the second highest salary.
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Q2. Check duplicate rows using sql, group by, window function.
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Use SQL query with GROUP BY and window function to check for duplicate rows.
• Use GROUP BY to group rows with same values together

• Use COUNT() function to count the number of occurrences of each group

• Use window function like ROW_NUMBER() to assign a unique number to each row within a group
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Q1. Frequency of character
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The question is asking about how often each character appears in a given string.
• Iterate through the string and count the frequency of each character using a hashmap.

• Return the hashmap with characters as keys and their frequencies as values.
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