Nasser Bin Abdullatif Alserkal Est. Interview Questions and Answers

Q1. Difference b/w deep copy and shallow copy
Ans. 
Deep copy creates a new copy of an object with all nested objects also copied, while shallow copy creates a new object with references to the original nested objects.
• Deep copy creates a new object and recursively copies all nested objects, resulting in a completely independent copy.

• Shallow copy creates a new object but only copies the references to nested objects, so changes in nested objects reflect in both the origin...read more
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Q2. Difference between foreach and map
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foreach is used to iterate over an array and perform a function on each element, while map creates a new array by applying a function to each element.
• foreach does not return a new array, while map does

• foreach is used for side effects, while map is used for transformation

• Example: forEach - let numbers = [1, 2, 3]; numbers.forEach(num => console.log(num)); // prints 1, 2, 3

• Example: map - let numbers = [1, 2, 3]; let doub...read more
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Q3. Pure impure pipe
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Q4. Ngonchanges usage
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Q5. Basic array methods
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Q6. Difference null undefined empty values in js
Ans. 
null is an intentional absence of any value, undefined means a variable has been declared but not assigned a value, and empty values are variables that have been assigned a value of empty string, empty array, or empty object.
• null is used to represent the intentional absence of any value

• undefined means a variable has been declared but not assigned a value

• Empty values can be empty string (''), empty array ([]), or empty
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Q1. How do agile methodologies function in B2B projects?
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Q2. What is your experience with barcode scanners?
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Q1. Can you please introduce yourself?
Ans. 
I am a Software Development Engineer with 5 years of experience in developing web applications using Java, Spring, and Angular.
• 5 years of experience in software development

• Proficient in Java, Spring, and Angular

• Strong problem-solving skills

• Experience in developing web applications

• Good team player
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Q2. What type of questions are being asked?
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Q1. Why you are applying for this job?
Ans. 
I am applying for this job because of my passion for managing civil projects and my proven track record of successful project completions.
• Passion for managing civil projects

• Proven track record of successful project completions

• Excited about the opportunity to contribute to impactful infrastructure projects
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Q2. Why you requested for salary hike?
Ans. 
I requested a salary hike due to increased responsibilities, achievements, and market value.
• Increased responsibilities in current role

• Achievements such as successful completion of projects or exceeding targets

• Market value based on industry standards and experience

• Cost of living increase or inflation affecting expenses
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Q1. Explain about the various stages of construction of the foundation of building.
Ans. 
The various stages of construction of the foundation of a building include site preparation, excavation, foundation design, footing construction, and foundation pouring.
• Site preparation involves clearing the area and leveling the ground for construction.

• Excavation is the process of digging a hole in the ground to create space for the foundation.

• Foundation design is crucial to ensure the building's stability and load-be...read more
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Q2. What will be the Design mix for Concrete .
Ans. 
The design mix for concrete is the proportion of various ingredients like cement, sand, aggregates, and water to achieve the desired strength and durability.
• Design mix is determined based on the required strength and durability of the concrete

• It involves selecting the right proportions of cement, sand, aggregates, and water

• Various factors like type of construction, exposure conditions, and desired workability influence...read more
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Q1. What is your experience with parallelizing transformers, and how do you approach splitting them across multiple devices to minimize latency?
Ans. 
I have experience parallelizing transformers by splitting them across multiple devices to minimize latency.
• I have utilized frameworks like TensorFlow and PyTorch to parallelize transformers.

• I approach splitting transformers by dividing the input data into chunks and distributing them across devices.

• I optimize communication overhead by minimizing data transfer between devices.

• I leverage techniques like data parallelism ...read more
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Q1. Dumb HR will ruin the company or maybe they behave how the company wants them to behave.
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Q1. What is coalesce
Ans. 
Coalesce is a function used to return the first non-null value in a list of expressions.
• Coalesce function is commonly used in SQL to handle null values.

• It takes multiple arguments and returns the first non-null value.

• Example: COALESCE(column1, column2, 'default') will return the value of column1 if not null, else column2, and if both are null, it will return 'default'.
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Q2. What is repartition
Ans. 
Repartition is the process of redistributing data across partitions in a distributed system.
• Repartitioning helps in balancing the workload and improving performance in distributed computing environments.

• It involves moving data between partitions based on certain criteria such as key values or hash functions.

• Repartitioning can be done in Spark using operations like repartition() or coalesce().
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Q1. Non repeatable character
Ans. 
A non repeatable character is a character that appears only once in a given string.
• Iterate through the string and count the frequency of each character

• Identify the characters that have a frequency of 1

• Return the first non repeatable character found
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Q2. Sort list without sort method
Ans. 
Sort list without using sort method
• Create a custom sorting function using loops

• Compare each element with every other element to determine the correct order

• Swap elements based on the comparison results
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Mathematical questions similar to CAT DILR

Q1. Breakeven analysis for term life insurance policy
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An aptitude test is designed to assess an individual's ability to perform certain tasks or react to a range of different situations. These tests are often used by educational institutions and employers to evaluate potential candidates' skills, talents, and potential for success in a specific role or academic program. Here are some key details about aptitude tests:

1. **Purpose**: Aptitude tests are used to measure a variety of skills, including logical reasoning, verbal ability, numerical skills, and spatial awareness. They help to identify strengths and weaknesses and predict future performance.

2. **Types**:
- **Verbal Reasoning**: Assesses understanding and reasoning using concepts framed in words.
- **Numerical Reasoning**: Tests ability to work with numbers, including basic arithmetic, data interpretation, and logical problem-solving.
- **Abstract Reasoning**: Evaluates the ability to identify patterns, logical rules, and trends in new data.
- **Mechanical Reasoning**: Measures understanding of mechanical and physical principles.
- **Spatial Reasoning**: Assesses the ability to visualize and manipulate objects.

3. **Format**: Aptitude tests can be multiple-choice, true/false, or involve practical problem-solving tasks. They are often timed, with specific sections dedicated to each type of reasoning.

4. **Preparation**:
- **Practice Tests**: Taking practice tests helps familiarize with the format and types of questions.
- **Study Guides**: Reviewing basic concepts in mathematics, grammar, and logical reasoning.
- **Skills Development**: Enhancing skills through puzzles, reading, and other related activities.

5. **Usage**:
- **Recruitment**: Employers use aptitude tests to screen job applicants and find the best fit for a role.
- **Education**: Schools and colleges use these tests for admissions, placement, and identifying areas for student improvement.
- **Career Counseling**: Helps individuals understand their strengths and areas for improvement, guiding career choices.

6. **Scoring**: Scores are typically presented as percentiles, showing how a test-taker compares to a norm group. Higher scores indicate better performance relative to the norm group.

If you have specific questions about a certain type of aptitude test or need preparation tips, feel free to ask!

Q1. Tell me about yourself.Tip: Provide a brief overview of your professional background, focusing on experiences relevant to the job you're applying for. Highlight your key achievements and skills.
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Q2. Know YourselfAssess and interest.
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