Arcesium Sde1 Interview Questions and Answers

C and Golang related questions, 2 Hours assement, The test involved writing code by hand in paper in the office (Bengaluru)

Q1. Write a go code to remove duplicate elements from a slice.
Ans. 
Go code to remove duplicate elements from a slice of strings
• Use a map to keep track of unique elements

• Iterate over the slice and add elements to the map

• Create a new slice with unique elements from the map
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Q2. Difference between array and slice in Go.
Ans. 
Arrays have fixed length, slices are dynamic and can grow/shrink. Slices are references to arrays.
• Arrays have fixed length, specified at compile time.

• Slices are dynamic, can grow or shrink at runtime.

• Slices are references to arrays, allowing for more flexibility.

• Example: var arr [3]string // array with fixed length of 3

• Example: slice := make([]string, 0) // slice with dynamic length
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Q3. Explain struct and interface
Ans. 
Struct is a user-defined data type that groups related data fields together. Interface defines a set of methods that a type must implement.
• Struct is used to create complex data structures by grouping related data fields together.

• Interface defines a set of methods that a type must implement. It allows for polymorphism in Go.

• Example: type Person struct { Name string; Age int }

• Example: type Shape interface { Area() float6...read more
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Q4. What is containerization.
Ans. 
Containerization is a method of packaging, distributing, and running applications in isolated environments called containers.
• Containers are lightweight, portable, and can run on any platform that supports containerization.

• They include everything needed to run the application, such as code, runtime, system tools, libraries, and settings.

• Popular containerization tools include Docker, Kubernetes, and Podman.

• Containerizati...read more
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Q5. Write a go code to implement struct.
Ans. 
Implementing a struct in Go code
• Define a struct using the 'type' keyword

• Add fields to the struct with their respective data types

• Access struct fields using dot notation
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Q6. Explain goroutine.
Ans. 
Goroutine is a lightweight thread managed by Go runtime, allowing concurrent execution of functions.
• Goroutines are created using the 'go' keyword in Go programming language.

• They are more lightweight than threads and are managed by the Go runtime.

• Goroutines allow for concurrent execution of functions without the need for manual thread management.

• Example: go myFunction()

• Example: go func() { // code here }
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Q7. How do you achieve concurrency in Go?
Ans. 
Concurrency in Go is achieved using goroutines and channels.
• Use goroutines to run functions concurrently

• Communicate between goroutines using channels

• Avoid using shared memory for synchronization
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Q8. What is channel in Go? What are the differences between buffered and unbuffered channel?
Ans. 
A channel in Go is a communication mechanism that allows goroutines to communicate with each other.
• Buffered channels have a specific capacity and can send multiple values without the need for a corresponding receive operation immediately.

• Unbuffered channels have no capacity and require both a send and receive operation to be ready at the same time for communication to occur.
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Q9. What is scaling? Horizontal and vertical scaling.
Ans. 
Scaling refers to the ability of a system to handle increasing amounts of work or its potential to accommodate growth.
• Horizontal scaling involves adding more machines to distribute the load, while vertical scaling involves increasing the resources of a single machine.

• Horizontal scaling is more cost-effective and provides better fault tolerance, but can be more complex to implement.

• Vertical scaling is simpler to impleme...read more
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4 sections Quantitative Analysis, Programming Based (output analysis, error detection), Aptitude and ML Engineering ( activation functions, models etc basics)

Q1. Merge Sort simple divide and conquer but a pain to execute they really just look for how logical you are and if your approach is correct
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Q2. Talk about your projects previous experience etc
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Q1. What do you think about Q
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Q2. Personality based questions like what are your hobbies, what drives you etc
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Q1. What id oops and its advantages
Ans. 
OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.
• Advantages of OOPs include code reusability, modularity, flexibility, and easier maintenance.

• Encapsulation allows data hiding and protection, reducing complexity and increasing security.

• Inheritance enables code reuse and promotes the creation of hierarchical relationships between classes.

• Polymorphism allows objects...read more
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Q2. What is jquery and JavaScript
Ans. 
jQuery is a JavaScript library that simplifies HTML document traversal and manipulation, event handling, and animation.
• jQuery is a fast, small, and feature-rich JavaScript library.

• It makes things like HTML document traversal and manipulation, event handling, and animation much simpler with an easy-to-use API.

• jQuery simplifies common tasks like AJAX calls and DOM manipulation.

• JavaScript is a programming language that en...read more
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Ecom is core platform

Q1. What is php and its advantages
Ans. 
PHP is a server-side scripting language used for web development.
• PHP stands for Hypertext Preprocessor.

• It is open source and widely used for creating dynamic web pages.

• Advantages include easy integration with HTML, support for various databases, and compatibility with different operating systems.

• PHP code can be embedded within HTML code, making it easy to work with web content.

• Popular websites like Facebook and WordPre
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Q2. How are you hope you doing well
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Q1. Spark architecture pyspark coding sql coding
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Q1. Spark architecture sql window functions,aggreate functions pyspark data frame coding
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Q1. Check if a linkedlist is palindrome
Ans. 
To check if a linkedlist is palindrome or not
• Traverse the linkedlist and push each element into a stack

• Traverse the linkedlist again and compare each element with the popped element from the stack

• If all elements match, then the linkedlist is palindrome
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Q2. Sort employees stream based on salary and department
Ans. 
Sort employees by salary and department
• Create a comparator function to compare salary and department

• Use the comparator function with the sort() method on the employee stream

• Return the sorted employee stream
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Q1. Count the duplicates in array
Ans. 
Count duplicates in array of strings
• Create a dictionary to store the count of each string

• Loop through the array and increment the count in dictionary

• Loop through the dictionary and count the duplicates

• Return the count of duplicates
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Q1. Managerial questions about resolving team issues
Ans. How will you solve a blocker
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It was a coding + aptitude test. Mcqs were also there.

One topic was given. Share the pros and cons

Q1. Simple coding and programming questions on java
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Q1. Flexible to shift in another city
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Q2. Interests and hobbies
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Q1. DBMS: Indexing Python: Monkey Patching
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DSA, Technical MCQ

Q1. DSA - Nth Fibonacci no with memoization, Find duplicate node in Linked list, Binary tree DSA questions, Project based tech questions, OOPS, Puzzle
Ans. 
Interview questions for Software Engineer position covering DSA, project-based tech questions, OOPS, and puzzle.
• Be prepared to answer DSA questions such as finding the Nth Fibonacci number with memoization, finding duplicate nodes in a linked list, and binary tree DSA questions.

• Expect project-based tech questions that may require you to explain your approach to solving a particular problem.

• Brush up on OOPS concepts and...read more
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Q1. Project based question in depth, Some HR questions, Leadership qualities questions, Puzzle
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Q1. What are your salary expectations?
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Q2. What are your strengths and weaknesses?
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Q3. Tell me about yourself.
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