Abc Technologies Interview Questions, Process, and Tips

Q1. Why node js is asymchronous
Ans. 
Node.js is asynchronous to allow non-blocking I/O operations, improving performance and scalability.
• Node.js uses event-driven architecture to handle multiple requests simultaneously.

• Asynchronous operations prevent blocking the main thread, allowing other tasks to continue.

• Node.js leverages callbacks, promises, and async/await to manage asynchronous operations efficiently.
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Q2. Tell any 5 array functions in php
Ans. 
Array functions in PHP help manipulate arrays efficiently.
• array_push() - adds one or more elements to the end of an array

• array_pop() - removes and returns the last element of an array

• array_merge() - merges one or more arrays into a single array

• array_slice() - extracts a slice of an array

• array_search() - searches an array for a specific value and returns the corresponding key if successful
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Q1. Core java related
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Good round selected in this only, interviewer was impressive

Q1. Why do you want to be founder of this company
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Q2. What is expected salary
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Q1. Tell me about yourself
Ans. 
Experienced manager with a background in team leadership and project management.
• Over 5 years of experience in managing teams and projects

• Strong leadership skills demonstrated through successful completion of various projects

• Proven track record of meeting deadlines and exceeding goals

• Excellent communication and problem-solving abilities

• Passionate about motivating and developing team members
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Q1. Tell me about yourself
Ans. 
Experienced manager with a background in team leadership and project management.
• Over 5 years of experience in managing teams and projects

• Strong communication and problem-solving skills

• Proven track record of meeting deadlines and exceeding goals
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Q1. Project specific questions questions on SQL joins
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Q2. Gave 2 tables and asked me to join them on unique id
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Q1. Tell me about yourself
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Q1. Tell about your self
Ans. 
I am a dedicated and hardworking individual with a passion for learning and problem-solving.
• Education background

• Work experience

• Skills and strengths

• Passions and hobbies
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Related to projects, overall understanding etc

Q1. Assumptions of LR
Ans. 
Assumptions of Linear Regression (LR) include linearity, independence, homoscedasticity, and normality.
• Linearity: The relationship between the independent and dependent variables is linear.

• Independence: The residuals are independent of each other.

• Homoscedasticity: The variance of the residuals is constant across all levels of the independent variables.

• Normality: The residuals are normally distributed.

• Example: In a LR m...read more
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