120 ConveGenius Interview Questions and Answers | HR, Technical & Aptitude Prep

20 common asked question in every interview

Kubernetes

Ques:- How does Kubernetes perform service discovery?

Asked In :- Atidan Technologies, PrimeSoft Solutions, PreludeSys India, Aptroid, Indium Software, Maventic, Talencia LLC, Payoda, Test Yantra, Aress,

Right Answer:

Kubernetes performs service discovery through its built-in DNS service and environment variables. When a service is created, Kubernetes assigns it a DNS name and a stable IP address. Pods can use this DNS name to communicate with the service, allowing them to discover and connect to it easily. Additionally, Kubernetes updates environment variables in pods with service information, enabling another method for service discovery.

Kubernetes

Ques:- What is Kubernetes, and what problems does it solve

Asked In :- Xoriant Solutions Pvt Ltd, EdgeVerve Systems, Mundrisoft Solutions LLP, The Unified Cloud, Zenon, Amiti Software Technologies, Pennant Technologies, Prodapt SA, BluePi, YuppTV,

Right Answer:

Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications. It solves problems related to application deployment consistency, scaling applications based on demand, managing container lifecycles, and ensuring high availability and fault tolerance of applications.

Kubernetes

Ques:- What is a StatefulSet and how is it different from a Deployment?

Asked In :- Angular Minds, Zentron Labs, Zenon, J K Technosoft, Wonderbiz Technologies, V2STech Solutions, MSys Technologies, C-Edge Technologies, Cron-J, ColorTokens,

Right Answer:

A StatefulSet is a Kubernetes resource used to manage stateful applications, providing unique network identities and stable storage for each pod. Unlike a Deployment, which is designed for stateless applications and can scale pods without maintaining their identities, a StatefulSet ensures that pods are created in a specific order, maintain their persistent storage, and have stable, unique identifiers.

Kubernetes

Ques:- How would you secure a Kubernetes cluster?

Asked In :- Velocity Software Solutions, Happiest Minds Technologies Pvt., The Unified Cloud, Zenon, Surya Software, Vanilla Networks, City Union Bank, WinWire Technologies, Terralogic, KSB Tech,

Right Answer:

To secure a Kubernetes cluster, you can implement the following measures:

1. **Use Role-Based Access Control (RBAC)**: Define roles and permissions to control access to resources.
2. **Enable Network Policies**: Restrict traffic between pods using network policies.
3. **Use Pod Security Policies**: Enforce security contexts for pods to control their capabilities and privileges.
4. **Secure etcd**: Encrypt etcd data at rest and use TLS for communication.
5. **Limit API Server Access**: Restrict access to the Kubernetes API server using firewalls and authentication mechanisms.
6. **Regularly Update Kubernetes**: Keep the cluster and its components up to date with security patches.
7. **Use Image Scanning**: Scan container images for vulnerabilities before deployment.
8. **Enable Audit Logging**: Monitor and log API requests for auditing purposes.
9. **Implement Secrets Management**: Use Kubernetes Secrets to manage sensitive information securely.
10. **Isolate Cluster Components**

Kubernetes

Ques:- What is a Pod in Kubernetes?

Asked In :- EdgeVerve Systems, Happiest Minds Technologies Pvt., Zentron Labs, Mundrisoft Solutions LLP, Atidan Technologies, Zenon, Indium Software, iOPEX, Amiti Software Technologies, Pennant Technologies,

Right Answer:

A Pod in Kubernetes is the smallest deployable unit that can contain one or more containers, which share the same network namespace and storage resources.

Node JS

Ques:- What are Promises?

Asked In :- tringapps, ConveGenius, Appzone, ATOS Syntel,

Right Answer:
Promises are objects in JavaScript that represent the eventual completion (or failure) of an asynchronous operation and its resulting value. They allow you to write cleaner asynchronous code by providing methods like `.then()`, `.catch()`, and `.finally()` to handle the outcome of the operation.

Node JS

Ques:- How can you secure your HTTP cookies against XSS attacks?

Asked In :- Velocity Software Solutions, Payoda, MSys Technologies, ConveGenius, Orion Innovation, t-systems, kubrick group, appfire, triplebyte,

Right Answer:
To secure HTTP cookies against XSS attacks, you can:

1. Use the `HttpOnly` flag to prevent JavaScript access to the cookies.
2. Set the `Secure` flag to ensure cookies are only sent over HTTPS.
3. Use the `SameSite` attribute to restrict how cookies are sent with cross-site requests.

Node JS

Ques:- What is Node js ?

Asked In :- Angular Minds, e2e, WebMobril Technologies, tringapps, Softsuave, ConveGenius, here technologies, prolifics, iks, mobikasa,

Right Answer:
Node.js is an open-source, cross-platform JavaScript runtime environment that allows developers to execute JavaScript code on the server side, enabling the creation of scalable and high-performance web applications.

Node JS

Ques:- When should you npm and when yarn?

Asked In :- ScriptsHub Technologies, ConveGenius, Reliance Jio, aptean, raja software labs, recro,

Right Answer:
Use npm when you want a widely supported package manager that comes with Node.js by default. Use Yarn when you need faster installs, better caching, or workspaces for managing multiple packages in a single repository.

Node JS

Ques:- What is purpose of Buffer class in Node?

Asked In :- Surya Software, Twilio, Skylex Technologies, ConveGenius, ATOS Syntel, Reliance Jio, Snapsheet, prolifics, speridian technologies, 6d technologies,

Right Answer:
The Buffer class in Node.js is used to handle binary data directly. It allows you to work with raw memory allocations and manipulate binary data efficiently, which is essential for tasks like reading files, handling network protocols, and processing streams.

Vue.js

Ques:- In Vue JS what are the dynamic components?

Asked In :- Aptroid, Hestabit Technologies, Talencia LLC, YuppTV, Codingmart Technologies, EvolveWare, KeyValue Software Systems, EWALL Solutions, ConveGenius, Oakland Systems,

Right Answer:
Dynamic components in Vue.js are components that can change based on the application's state or data. They are defined using the `<component>` tag, where the `is` attribute specifies which component to render dynamically. This allows for the rendering of different components based on conditions or user interactions.

Comments

Admin Feb 8, 2020

These are created using keyword component.

Vue.js

Ques:- What is Vue.js?

Asked In :- Velocity Software Solutions, TPF Technologies, CodeCraft Technologies, DSK Digital Technologies, Talencia LLC, Wonderbiz Technologies, Codingmart Technologies, Ulearn, Roanuz, Aosta Software Technologies,

Right Answer:
Vue.js is a progressive JavaScript framework used for building user interfaces and single-page applications. It allows developers to create reactive components and manage state efficiently.

Comments

Admin Feb 8, 2020

Vue JS is basically pronounced as view, it is progressive framework useful in building UI’s.

Vue.js is small, versatile and approachable framework. If you are aware of CSS, HTML and JavaScript then you are good to go with developing Vue JS apps in no time.

Vue.js

Ques:- What are the render functions in Vue JS?

Asked In :- ProMobi Technologies, YuppTV, EvolveWare, BridgeLabz Solutions, APPS Team Technologies, ConveGenius, Mozilor Technologies, appnomic systems pvt ltd, briskminds software solutions pvt. ltd., Bizotic,

Right Answer:
Render functions in Vue.js are JavaScript functions that return Virtual DOM nodes. They provide a programmatic way to create and manipulate the structure of the UI, allowing developers to define the component's template using JavaScript instead of HTML. This is useful for dynamic rendering and when templates are not sufficient for complex scenarios.

Comments

Admin Feb 8, 2020

In Vue JS the render function essentially returns a virtual DOM node which will be rendered by Vue in the browser DOM.
A <b>virtual Document Object Model (or 'DOM')</b> allows Vue to render the component in its memory before updating the browser. This makes everything faster as there are fewer interactions with the browser.

Vue.js

Ques:- What is the difference between v-if and v-show in Vue JS?

Asked In :- Wonderbiz Technologies, Canopus Infosystems, Roanuz, ConveGenius, DigiQ Solutions, Mozilor Technologies, Pursuit Software Development, mindpearl, people tech group inc, Bizotic,

Right Answer:
`v-if` conditionally renders elements in the DOM based on the condition, meaning the element is created or destroyed. `v-show`, on the other hand, toggles the visibility of the element by changing its CSS display property, keeping it in the DOM regardless of the condition.

Comments

Admin Feb 8, 2020

V-if removes the element from the DOM if the condition is false and adds back if its true. Whereas v-show hides the element if condition is false using display:none thus DOM element is always present.

Vue.js

Ques:- What is a virtual DOM?

Asked In :- Velocity Software Solutions, Signiwis Technologies, Nalsoft, Canopus Infosystems, EvolveWare, KeyValue Software Systems, EWALL Solutions, ConveGenius, Zerone Technologies, VibrantMinds Technologies,

Right Answer:
The virtual DOM is a lightweight in-memory representation of the actual DOM. It allows Vue.js to efficiently update the user interface by comparing changes and only re-rendering the parts of the DOM that have changed, improving performance and responsiveness.

Comments

Admin Feb 8, 2020

The “Virtual Document Object Model” or v-DOM is extremely different than the actual DOM. The v-DOM is an in memory representation of the underlying node (data structures) that the Vue js runtime engine processes different checks against prior to actually inform the DOM that an update is needed.

Data Analytics

Ques:- What is exploratory data analysis (EDA)

Asked In :- Xoriant Solutions Pvt Ltd, Fluid AI, Rock Solid Solutions, Trigent Software, Aranca (Mumbai), Indocosmo Systems, Solace Infotech, Spadeworx Software Services, WFM, Recodem,

Right Answer:
Exploratory Data Analysis (EDA) is the process of analyzing and summarizing datasets to understand their main characteristics, often using visual methods. It helps identify patterns, trends, and anomalies in the data before applying formal modeling techniques.

Data Analytics

Ques:- What is data normalization and why is it important

Asked In :- KRIOS Info Solutions, WSNE Consulting, MattsenKumar Services, Shipco IT, Itobuz Technologies, Fortunesoft IT Innovations, Spadeworx Software Services, Namecheap Web Services, TNQ Technologies, Define Labs,

Right Answer:
Data normalization is the process of organizing data in a database to reduce redundancy and improve data integrity. It involves structuring the data into tables and defining relationships between them. Normalization is important because it helps eliminate duplicate data, ensures data consistency, and makes it easier to maintain and update the database.

Data Analytics

Ques:- What is the difference between supervised and unsupervised learning

Asked In :- Medvarsity Online, KRIOS Info Solutions, AnAr Solutions, Netaxis IT Solutions (p), MattsenKumar Services, Shipco IT, Chegg India, Indocosmo Systems, Born Commerce, Cybage Software,

Right Answer:
Supervised learning uses labeled data to train models, meaning the output is known, while unsupervised learning uses unlabeled data, where the model tries to find patterns or groupings without predefined outcomes.

Data Analytics

Ques:- What is clustering in data analysis and how is it different from classification

Asked In :- Medvarsity Online, AnAr Solutions, MattsenKumar Services, Protege Solutions, Shipco IT, Chegg India, Fortunesoft IT Innovations, GOQii Technologies, Spadeworx Software Services, Dhruvsoft Services,

Right Answer:
Clustering in data analysis is the process of grouping similar data points together based on their characteristics, without prior labels. It is an unsupervised learning technique. In contrast, classification involves assigning predefined labels to data points based on their features, using a supervised learning approach.

Data Analytics

Ques:- What are some common data visualization techniques

Asked In :- Xoriant Solutions Pvt Ltd, Fluid AI, KRIOS Info Solutions, Netaxis IT Solutions (p), Queppelin Technology Solutions, Toxsl Technologies, Solace Infotech, RANDSTAD INDIA PVT, Spadeworx Software Services, Namecheap Web Services,

Right Answer:
Some common data visualization techniques include:

1. Bar Charts
2. Line Graphs
3. Pie Charts
4. Scatter Plots
5. Histograms
6. Heat Maps
7. Box Plots
8. Area Charts
9. Tree Maps
10. Bubble Charts

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ConveGenius is a pioneering educational technology company committed to transforming learning experiences through innovative digital solutions. Founded in 2013 by Jairaj Bhattacharya and Shashank Pandey, ConveGenius aims to bridge educational gaps and enhance access to quality education for all. The company's flagship product, CG Slate, is a comprehensive educational tablet designed specifically for children, integrating curriculum-based learning with interactive features and engaging content. CG Slate provides personalized learning experiences tailored to individual student needs, fostering self-paced and enjoyable learning journeys. ConveGenius leverages cutting-edge technologies such as artificial intelligence, machine learning, and gamification to create immersive and effective learning environments. Their solutions are designed to complement traditional classroom instruction, empower educators, and inspire students to become lifelong learners. With a mission to democratize education, ConveGenius partners with governments, schools, and NGOs to reach underserved communities and address educational inequities. Through strategic collaborations and innovative initiatives, the company endeavors to make quality education accessible to every child, regardless of geographical location or socioeconomic background. Driven by a passion for innovation and social impact, ConveGenius continues to pioneer new approaches to education, empowering learners worldwide to unlock their full potential and build a brighter future.

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