Embibe Softwaretest Engineer Interview Questions and Answers

DS algo questions with about 3 questions in topic like graph, strings ,arrays

Q1. DS algo question on LinkedIn list
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Q2. DS algo question on graph
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Q1. Lets delve into self-exploration to understand our own identity and they will ask specific questions based on your resume to help with this process.
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Q1. The interviewer thoroughly inquired about the specific equipment i had used in the lab and provided a detailed overview of the tasks that would be carried out in the laboratory.
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Q1. Yet to be do
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2 leetcode problem
1. house robbers
2. Reverse linkedlist

Q1. Difference between qualifier and auto wired?
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Q2. Abstract vs interface?
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Q3. Exception handling in polymorphism
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Q1. WhatsApp notification system design
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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.
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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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There were 3 coding questions totally based on dsa- hard

Q1. Vertical Traversal
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Q2. Find the node with shortest distance
Ans. 
Use Dijkstra's algorithm to find the node with the shortest distance in a graph.
• Implement Dijkstra's algorithm to calculate the shortest distance from a starting node to all other nodes in the graph.

• Select the node with the smallest distance that has not been visited yet as the current node.

• Update the distances of neighboring nodes from the current node if the new distance is smaller than the previously recorded distan...read more
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Q1. Question based on oops
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Q2. Question based on OS
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Q1. REST API for User CRUD
Ans. 
Design a RESTful API for CRUD operations on user resources.
• Use HTTP methods like GET, POST, PUT, DELETE for CRUD operations

• Create endpoints like /users for listing all users, /users/{id} for specific user

• Use status codes like 200 for success, 404 for not found, 400 for bad request

• Implement authentication and authorization mechanisms for security

• Include request and response body formats like JSON or XML
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Q2. Two Sum Leetcode problem
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Q3. Basic questions based on the candidate technical skills
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Q1. Basics to Intermediate level of questions based on the skills mentioned in the resume
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Q2. Projects related discussions
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Q1. I was informed to upload the supporting documents. ( They rejected me after this eventhough all my documents are genuine )
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Q1. LLD/Machine coding - Design a social media application with users, posts, comments, likes, etc. There is also an admin who needs to approve post creation and can delete any post they want. Create appropria...read more
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Q1. High-level design - Design a chat-based application like WhatsApp with only user-to-user chat feature (no group chats). Explain and draw out the E2E design by mentioning all the components and design decis...read more
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Q1. Hiring Manager - basic questions like why Razorpay, what are your career goals, what does career growth look like for 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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