Mashreq Bank Team Lead Interview Questions and Answers

Q1. How do you build a web performant app?
Ans. 
To build a web performant app, focus on optimizing code, reducing server requests, using caching, and optimizing images.
• Optimize code by minimizing unnecessary functions and variables

• Reduce server requests by combining files, using CDNs, and lazy loading

• Utilize caching to store data locally and reduce load times

• Optimize images by resizing, compressing, and using modern formats like WebP
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Q2. What data structure you want to use for returning database records and why?
Ans. 
I would use an array data structure for returning database records as it allows for easy access and manipulation of individual records.
• Arrays provide O(1) access time for individual records, making it efficient for returning database records.

• Arrays allow for easy iteration over all records to perform operations such as filtering or sorting.

• Arrays can easily be converted to JSON or other data formats for returning to th...read more
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Q1. Question ask about previous job first
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Q2. After that current work profile
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Writing skill, communication and listening skill

Discussion about Current news, we have to brief and support or deny the content with strong communication.

Q1. Manager round, questions about the process for experienced staffs and skill level check for the freshers
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Q1. Final discussion about the package, roles and responsibilities m
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Logical reasoning and analytical skills

Q1. 1.Questions based on your prior experience 2. Key skills mentioned on the cv 3. What do you know about Natwest group
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Q2. Tell about your self ? Tell about your strength and weeknesa
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Q1. Expecting some team management skills and also product knowledge
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Q2. What is EMV CHIP ?
Ans. 
EMV CHIP is a global standard for credit and debit card payments that uses a microprocessor chip to authenticate transactions.
• EMV stands for Europay, Mastercard, and Visa, the three companies that developed the standard

• The chip generates a unique code for each transaction, making it more secure than traditional magnetic stripe cards

• EMV technology is used in over 80 countries worldwide

• Many countries have mandated the us...read more
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There were 2 question:-
1. array(easy to medium)
2. Graph(easy to medium)

Q1. Q1. Explain joins and their type?
Ans. 
Joins are used to combine data from two or more tables based on a related column.
• Inner join returns only the matching rows from both tables

• Left join returns all rows from the left table and matching rows from the right table

• Right join returns all rows from the right table and matching rows from the left table

• Full outer join returns all rows from both tables

• Cross join returns the Cartesian product of both tables
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Q2. Q2. what is normalization?
Ans. 
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalization involves breaking down a database into smaller, more manageable tables.

• Each table should have a primary key and only contain data that is related to that key.

• Normalization helps to prevent data inconsistencies and anomalies.

• There are different levels of normalization, with each level building on t...read more
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Q1. They will check if we have relevant experience.
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Q1. They will explain about the criticallity of our role and will check if we are suitable for it.
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Q1. CTC finalize will happen and hr will talk very narrow. We need to clarify all our doubts in that round itself.
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