Quantiphi Analytics Solutions Private Limited Software Development Engineer II 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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3 questions, medium hard

Q1. Greedy Algorithm, simple jumps question, easily approachable by greedy algorithm
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Q2. Binary Search, simple array based
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Q1. DBMS, Projects, SQL Queries
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Q2. 2 coding questions
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Q1. Looker developer
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Q2. Sql server
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Q1. Looker developer
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Q2. Sql server
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Q1. Questions on spring boot and question around spring annotations and its benifits
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Q2. Questions on Java 8 - 21 versions such as virtual threads and stream API
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Q3. Question on Databases fundamentals.
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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. 1. How we secure ur data through data security?
Ans. 
Data security is ensured through various measures such as encryption, access controls, regular backups, and security audits.
• Encryption: Data is encrypted using algorithms like AES or RSA to protect it from unauthorized access.

• Access controls: User authentication, role-based access control, and strong password policies are implemented to control data access.

• Regular backups: Data is regularly backed up to prevent loss or...read more
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Q2. 2.Where are how do we use Al in our day to day life ?
Ans. 
AI is used in various aspects of our daily lives, from virtual assistants to recommendation systems.
• Virtual assistants like Siri, Alexa, and Google Assistant use AI to understand and respond to voice commands.

• Social media platforms use AI algorithms to personalize our news feeds and suggest friends to connect with.

• AI-powered recommendation systems suggest products, movies, and music based on our preferences and browsin...read more
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Q3. 3.Explain about Artificial intelligence
Ans. 
Artificial intelligence is a field of computer science that focuses on creating intelligent machines.
• AI involves the development of algorithms and models that enable machines to perform tasks that typically require human intelligence.

• It encompasses various subfields such as machine learning, natural language processing, computer vision, and robotics.

• AI applications can be found in areas like virtual assistants, autonom...read more
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Q4. 4.what is al and it functionality in machine learning
Ans. 
AL stands for Active Learning and it is a technique used in machine learning to select the most informative data points for labeling.
• AL is used to reduce the amount of labeled data needed for training a model.

• It involves iteratively selecting the most uncertain or informative data points for annotation.

• AL can be used in various machine learning tasks such as classification, regression, and clustering.

• By actively select...read more
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Q5. 5.Short keys of copy, cut, paste, undo
Ans. 
Copy, cut, paste, undo are short keys used for manipulating text or objects in software applications.
• Copy: Ctrl+C (Windows) or Command+C (Mac)

• Cut: Ctrl+X (Windows) or Command+X (Mac)

• Paste: Ctrl+V (Windows) or Command+V (Mac)

• Undo: Ctrl+Z (Windows) or Command+Z (Mac)
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Q6. 6.how will short name in mx excel
Ans. 
In Excel, you can create a short name for a cell or range of cells using the Name Manager feature.
• Open Excel and go to the Formulas tab.

• Click on the Name Manager button.

• Click on the New button to create a new name.

• Enter a short name in the Name field.

• Specify the cell or range of cells you want to associate with the short name in the Refers to field.

• Click OK to save the short name.

• You can now use the short name in formu...read more
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Q7. 7.What do you know about artificial intelligence and Machine learning?
Ans. 
Artificial intelligence (AI) is the simulation of human intelligence in machines that can learn and perform tasks without explicit programming.
• AI is a branch of computer science that focuses on creating intelligent machines

• Machine learning is a subset of AI that enables machines to learn from data and improve their performance

• AI and machine learning are used in various applications such as speech recognition, image cla...read more
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Q8. 8. Can you play any music instrument?
Ans. 
Yes, I can play the piano and the guitar.
• I can play the piano and the guitar.

• I have been playing the piano for 10 years.

• I have been playing the guitar for 5 years.
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Q9. 9.Data Base Administration knowledge line attributes and entities and ther m...
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BASIC TO MODERATE questions on there. & sectional time was given.

There was a communication round. Some basic English Grammer and 5 small topic was given. you have to say on those 5 topics within 2mins each. This was Easy level.

Q1. Some qst based on the programming language you are comfortable in. Then basic DBMS qst are there. And based on your final year project.
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Q1. Basic HR qst like introduce yourself, your skills, strenth & weakness, and willing to relocate or not.
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Q1. I was shortlisted for .Net Developer role. 1) Tell me about yourself. Your current company work and role. 2) What are OOPS concept? 3) Difference between interface - abstract and abstraction - encapsulatio...read more
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Q1. 1) Tell me about yourself. Your current company work and role. 2) Tell me about your family background - Place, parents occupation, brother/sister role, etc. 3) What methodology used to be followed in your...read more
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Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Share details of your previous job.
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Q4. Why are you looking for a change?
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Q5. Tell me about yourself.
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