Rekrut PHP Developer Interview Questions and Answers

Q1. What challenge have you faced in modernizing legacy systems, and how do you handle the integration of new technologies within an established global infrastructure?
Ans. 
Modernizing legacy systems and integrating new technologies in a global infrastructure.
• Identify key pain points in the legacy system that need modernization

• Develop a clear roadmap for integration of new technologies while minimizing disruption

• Collaborate with stakeholders to ensure alignment with business goals

• Implement gradual changes and conduct thorough testing to mitigate risks

• Provide training and support for users
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Q2. How do you ensure scalability and performance optimization when managing large volumes of data across multiple platforms in a global organization?
Ans. 
Ensuring scalability and performance optimization involves utilizing efficient data management techniques and leveraging appropriate technologies.
• Utilize database indexing and caching to improve data retrieval speed

• Implement data sharding to distribute data across multiple servers for better performance

• Use content delivery networks (CDNs) to reduce latency for global users

• Optimize front end code by minimizing HTTP requ...read more
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Q1. How does Randstad support employee development and career progression, especially in terms of training and skill building opportunities?
Ans. 
Randstad supports employee development through various training and skill building opportunities.
• Randstad offers a variety of training programs and workshops to help employees enhance their skills.

• Employees have access to online learning platforms and resources to further their professional development.

• Randstad provides opportunities for career progression through internal promotions and job rotations.

• The company encou...read more
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Q2. What strategies does Randstad use maintain employee engagement and motivation, especially in high-pressure roles or during periods of organizational change?
Ans. 
Randstad uses a variety of strategies to maintain employee engagement and motivation, especially in high-pressure roles or during periods of organizational change.
• Regular communication and transparency about changes and challenges

• Providing opportunities for professional development and growth

• Recognizing and rewarding employees for their hard work and achievements

• Encouraging a positive work culture through team-building...read more
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Q1. Distance bw 2 nodes in binary tree
Ans. 
To find the distance between two nodes in a binary tree, we can find the distance from the root to each node and then calculate the distance between the two nodes.
• Calculate the distance from the root to each node using a recursive function

• Find the lowest common ancestor of the two nodes

• Calculate the distance from each node to the lowest common ancestor and add them together to get the total distance
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Q2. Valid sudoku of 9*9
Ans. 
A valid sudoku of 9*9 is a grid where each row, column, and 3x3 subgrid contains the numbers 1-9 without repetition.
• Each row must contain the numbers 1-9 without repetition

• Each column must contain the numbers 1-9 without repetition

• Each 3x3 subgrid must contain the numbers 1-9 without repetition
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Q1. Tain water trapping
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Q2. Rotate array by 90 degree
Ans. 
To rotate an array by 90 degrees, transpose the array and then reverse each row.
• Transpose the array by swapping elements across the diagonal

• Reverse each row of the transposed array
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Q1. Resume and project
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Difficult techinical round conducted

Q1. Expectations and Personal Details
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Q1. Tell about yourself and basic question
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Some technical questions coding English paragraph

3 min continuously speak on one topic

Q1. Related technology technical questions
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Q1. About family and company
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Q1. HTML,CSS ,JS, ANgular Type script questions
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Q1. HTML, CSS, JS advance concepts, Typescript, ANgular questions
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