Kelly Technologies Software Developer Interview Questions and Answers

Asking the dp and tree and other

Q1. Asking the project based question and
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Q1. Some question asking base on cultural base and resume based
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Q1. How is GIL and how python handle multi threading
Ans. 
GIL stands for Global Interpreter Lock in Python, which limits execution of multiple threads at once.
• GIL is a mutex that protects access to Python objects, preventing multiple threads from executing Python bytecodes at once.

• Due to GIL, Python threads are not suitable for CPU-bound tasks but are still useful for I/O-bound tasks.

• To handle multi-threading in Python, one can use multiprocessing module or asynchronous progr...read more
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Q2. Explain How React works under the hood.
Ans. 
React uses a virtual DOM to efficiently update the actual DOM based on changes in state or props.
• React creates a virtual DOM representation of the actual DOM.

• When state or props change, React compares the virtual DOM with the actual DOM to determine the minimal set of changes needed.

• React then updates the actual DOM efficiently to reflect the changes.
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Q1. Write a program of bubble sort.
Ans. 
Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements, and swaps them if they are in the wrong order.
• Initialize an array of strings to be sorted

• Repeat until no swaps are needed: Compare adjacent elements and swap if necessary

• Continue until the entire array is sorted
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Oops concept, java basics, sqlqueries

Q1. Technical knowledge tested.
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LEVEL UP CODING TEST

Q1. What is the work in office
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Q2. What is timings in day
Ans. 
Timings in a day refer to the different periods of time that make up a 24-hour day.
• A day is typically divided into morning, afternoon, evening, and night

• Different cultures may have different ways of dividing a day

• Timings can also refer to specific times for events or activities
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Q1. How much salary per month
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Q2. What is timing in the day
Ans. 
Timing in the day refers to the different periods or divisions of time within a 24-hour cycle.
• Timing in the day includes morning, afternoon, evening, and night.

• It helps in organizing daily activities and scheduling tasks.

• Different cultures may have different names or divisions for timing in the day, such as siesta or tea time.

• Timing in the day can also be represented using the 12-hour or 24-hour clock system.
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Q3. How to procesa I share my details
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Q4. Please tell me the process
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Prepare the basic programming languages like Java,SQL and pseudocodes,computer fundamentals,communication.All the questions will be MCQ type of queries.

Q1. Programming codes and core Java ,SQL related questions.If your resume has some other languages then prepare for it.Always be ready with your resume details and the subject.
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Q2. 1.What is constraints and it's types? 2.what is meant by wrapper class? 3.What is meant by string buffer? 4.Write a program to print number of count of characters in a string and remove duplicates by givin...read more
Ans. 
This interview includes questions related to constraints, wrapper class, string buffer, and programming.
• Constraints are rules that limit the values or types of data that can be entered into a field or table. There are two types of constraints: column-level and table-level constraints.

• Wrapper classes are classes that encapsulate primitive data types and provide methods to manipulate them. For example, Integer is a wrapp...read more
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Q1. 1.Self introduction 2.why should I hire you? 3.Are u want to relocate? 4.what is the reason to join our company?
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