HCLTech Interview Questions, Process, and Tips

Q1. Difference between incident and service request
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Q1. Most asked from resume how to do outlook configuration?
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Q2. What are the works and tools which you use in your organisation?
Ans. 
We use a variety of tools such as ticketing systems, remote desktop software, knowledge bases, and monitoring tools.
• Ticketing systems (e.g. ServiceNow, Jira)

• Remote desktop software (e.g. TeamViewer, Remote Desktop Connection)

• Knowledge bases (e.g. Confluence, SharePoint)

• Monitoring tools (e.g. SolarWinds, Nagios)
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Q1. Basic English listening and speaking skills checks should be carefully listen and speak it's easy but be careful
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Q1. Salary negotiation
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Q1. Tell about yourself
Ans. 
I am a highly experienced Lead Engineer with a strong background in software development and team management.
• Over 10 years of experience in software development

• Proven track record of successfully leading engineering teams

• Expertise in various programming languages such as Java, Python, and C++

• Strong communication and problem-solving skills

• Experience in Agile development methodologies
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Q2. Explain AFT in detail
Ans. 
AFT stands for Accelerated Failure Time, a statistical model used to analyze survival data.
• AFT is used to estimate the effect of covariates on the survival time of individuals.

• It assumes that the logarithm of survival time is linearly related to the covariates.

• AFT models are commonly used in medical research to analyze time-to-event data.

• Example: AFT model can be used to study the impact of different treatments on the
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Q1. A technique used in your project?
Ans. 
One technique used in our project is continuous integration (CI) to automate the testing and integration of code changes.
• Implemented CI tools like Jenkins or Travis CI to automatically build, test, and deploy code changes

• Set up pipelines to run unit tests, integration tests, and code quality checks on every code commit

• Used version control systems like Git to track changes and trigger CI processes

• Enabled notifications f...read more
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Q2. Critical bug faced in your application?
Ans. 
Encountered critical bug related to data corruption during database migration.
• Bug occurred during migration of data from old database to new database.

• Data corruption was caused by mismatch in data types between old and new database.

• Implemented data validation checks and fixed data type mismatches to resolve the bug.
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Q1. Why snowflake is different from other databases?
Ans. 
Snowflake is a cloud-based data warehousing platform that separates storage and compute, allowing for scalable and efficient data processing.
• Snowflake uses a unique architecture that separates storage and compute resources, enabling on-demand scaling for both without any manual intervention.

• It supports multiple data types and semi-structured data like JSON, Avro, Parquet, etc.

• Snowflake offers automatic optimization of ...read more
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Q2. What is clustering?
Ans. 
Clustering is a technique used in data mining to group similar data points together based on certain criteria.
• Clustering is an unsupervised machine learning technique.

• It is used to discover hidden patterns or structures in data.

• Examples include K-means clustering, hierarchical clustering, and DBSCAN.
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Q1. Basic questions of snowflake concepts
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Q2. Basic codes of sql
Ans. 
Basic SQL codes include SELECT, INSERT, UPDATE, DELETE.
• SELECT statement retrieves data from a database

• INSERT statement adds new records to a table

• UPDATE statement modifies existing records in a table

• DELETE statement removes records from a table
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Q1. What functionalities have you worked as an AEM and java developer?
Ans. 
I have worked on developing custom components, templates, workflows, and integrating third-party systems in AEM. In Java, I have worked on backend development, RESTful services, and database interactions.
• Developed custom components and templates in AEM

• Implemented workflows for content approval processes

• Integrated third-party systems with AEM

• Backend development in Java

• Created RESTful services

• Worked on database interacti
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Q2. Explain basic user interfaces in aem?
Ans. 
Basic user interfaces in AEM include authoring interface, touch-optimized UI, and classic UI.
• Authoring interface allows content authors to create and manage content easily.

• Touch-optimized UI is designed for mobile devices and provides a responsive design.

• Classic UI is the older interface that is still available for certain functionalities.

• Components like sidekick, toolbar, and console are common elements in AEM user in
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Q1. Explain technical stack of aem
Ans. 
AEM technical stack includes Apache Sling, OSGi framework, JCR repository, and HTL templating language.
• Apache Sling is used for RESTful web application development

• OSGi framework provides modularity and extensibility

• JCR repository stores content in a hierarchical structure

• HTL templating language is used for creating dynamic web pages
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Q2. Explain osgi and its lifecycle
Ans. 
OSGi is a Java framework for developing and deploying modular software components.
• OSGi stands for Open Service Gateway Initiative

• It provides a dynamic module system for Java

• OSGi bundles are the building blocks of OSGi applications

• OSGi has a lifecycle with states like installed, resolved, starting, active, stopping, and uninstalled
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Custom Link list implementation, threading, design pattern

Q1. Design pattern, collection, oops
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Q1. Design, requirements gathering manager round
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Q1. Salary negotiations
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