Infosys Interview Questions, Process, and Tips for Experienced

Q1. Bigquery architecture
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Q2. Real time scenario questions
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Q1. Architecture and design of streaming data pipeline in gcp
Ans. 
Designing a streaming data pipeline in GCP involves selecting appropriate services like Pub/Sub, Dataflow, BigQuery, and Cloud Storage.
• Use Google Cloud Pub/Sub for ingesting and distributing data streams

• Utilize Google Cloud Dataflow for processing and transforming data in real-time

• Store processed data in Google BigQuery for analysis and querying

• Consider using Google Cloud Storage for storing raw data or backups
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Q2. Cloud migration challenges
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Cloud migration challenges include security concerns, data transfer issues, and compatibility problems.
• Security concerns related to data privacy and compliance regulations

• Data transfer issues such as bandwidth limitations and latency

• Compatibility problems with existing systems and applications

• Lack of skilled resources for managing cloud infrastructure

• Cost management and budget constraints

• Potential downtime during migra
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Q1. Salary discussion
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Q2. Why you want to join company
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I want to join the company because of its innovative technology solutions and strong reputation in the industry.
• Impressed by the company's track record of successful projects

• Excited about the opportunity to work with cutting-edge technology

• Looking to be part of a team that values collaboration and creativity
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Q1. JavaScript promises async
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Q2. Angular basics components directives forms interceptor services
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Q1. Scenario based questions
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Q2. Signal new feature
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Signal new feature is a way to inform users about a new functionality or improvement in a product.
• Create a notification or pop-up message to alert users about the new feature

• Include a brief description of the new feature and its benefits

• Provide a link or button for users to learn more or try out the new feature
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Q1. Why you want to leave
Ans. 
Seeking new challenges and growth opportunities in a different environment.
• Desire for professional growth

• Seeking new challenges

• Exploring different work environment
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Q2. What role you have worked on
Ans. 
I have worked as a Technical Lead in various projects, leading development teams and overseeing technical aspects of software development.
• Led development teams in implementing software solutions

• Oversaw technical architecture and design decisions

• Mentored team members and provided technical guidance

• Collaborated with stakeholders to gather requirements and define project scope
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Q1. What is L1 and L2 regression
Ans. 
L1 and L2 regression are regularization techniques used in machine learning to prevent overfitting by adding penalty terms to the loss function.
• L1 regression adds the absolute values of the coefficients as penalty term (Lasso regression)

• L2 regression adds the squared values of the coefficients as penalty term (Ridge regression)

• L1 regularization can lead to sparse models with some coefficients being exactly zero

• L2 regul...read more
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Q2. Explain auc and roc
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AUC (Area Under the Curve) is a metric that measures the performance of a classification model. ROC (Receiver Operating Characteristic) is a graphical representation of the AUC.
• AUC is a single scalar value that represents the area under the ROC curve.

• ROC curve is a plot of the true positive rate against the false positive rate for different threshold values.

• AUC ranges from 0 to 1, where a higher value indicates better ...read more
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Q3. Precision and recall
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Q4. Parameter of random forest
Ans. 
Parameter of random forest is the number of trees in the forest.
• Number of trees in the forest affects model performance

• Higher number of trees can lead to overfitting

• Commonly tuned parameter in random forest algorithms
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Q5. What isp,d,q values in time series
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p, d, q values are parameters used in ARIMA time series models to determine the order of differencing and moving average components.
• p represents the number of lag observations included in the model (autoregressive order)

• d represents the degree of differencing needed to make the time series stationary

• q represents the number of lagged forecast errors included in the model (moving average order)

• For example, in an ARIMA(1,
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Q1. What's your experience in gaming
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Aptitude, versant and technical round

Q1. Technical questions related to XBOX
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Q2. Experience overall in gaming
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Q3. Technical stuff
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Q4. Methods of troubleshooting
Ans. 
Troubleshooting methods involve identifying, isolating, and resolving technical issues.
• Identify the problem by gathering information and observing symptoms

• Isolate the issue by testing components and narrowing down possible causes

• Resolve the problem by implementing solutions and verifying the fix

• Document the troubleshooting process for future reference
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Q1. Explain Lifecycle hook of LWC
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Lifecycle hooks in LWC are methods that allow developers to interact with the component lifecycle at specific points.
• Lifecycle hooks include connectedCallback, disconnectedCallback, renderedCallback, errorCallback, and others.

• connectedCallback is called when a component is inserted into the DOM.

• disconnectedCallback is called when a component is removed from the DOM.

• renderedCallback is called after the component's templ...read more
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Q2. Explain Security Model
Ans. 
Security model refers to the framework that controls access to data within a system.
• Defines who can access what data

• Includes roles, profiles, and permissions

• Ensures data integrity and confidentiality

• Can be customized to meet specific security requirements
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Q3. How to acheive child to parent communication
Ans. 
Child to parent communication can be achieved in Salesforce using lookup relationships or formula fields.
• Create a lookup relationship field on the child object that references the parent object

• Use formula fields to display parent information on the child record

• Utilize cross-object formulas to display parent fields on related lists or reports
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