ECU Worldwide Interview Questions and Answers

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

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

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

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

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

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

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

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

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'.

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().

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

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