HCLTech Interview Questions, Process, and Tips

Q1. What is Active Directory?
Ans. 
Active Directory is a directory service developed by Microsoft for Windows domain networks.
• Centralized database for managing network resources

• Stores information about users, computers, and other network objects

• Allows for authentication and authorization of users

• Enables administrators to assign policies, deploy software, and apply updates

• Example: Creating user accounts, managing group policies
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Q2. What is the role of Active Directory Users and Computers?
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Active Directory Users and Computers is a Microsoft Management Console snap-in that allows administrators to manage users, groups, computers, and organizational units in a Windows domain environment.
• Allows administrators to create, delete, and manage user accounts

• Enables administrators to create and manage security groups

• Provides the ability to manage computer accounts and organizational units

• Allows for delegation of a
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Q3. What is the process for creating users and groups in Active Directory?
Ans. 
Creating users and groups in Active Directory involves using tools like Active Directory Users and Computers.
• Open Active Directory Users and Computers tool

• Navigate to the appropriate organizational unit (OU)

• Right-click on the OU and select 'New' -> 'User' or 'Group'

• Fill in the required user or group information such as name, username, password, etc.

• Click 'OK' to create the user or group
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Q4. What is the process for enabling and disabling users in Active Directory?
Ans. 
Enabling and disabling users in Active Directory involves using the Active Directory Users and Computers tool.
• Open Active Directory Users and Computers tool

• Locate the user account to enable/disable

• Right-click on the user account and select 'Enable Account' or 'Disable Account'

• Click 'Apply' to save the changes
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Q5. What is a Distribution List in Exchange Server?
Ans. 
A Distribution List in Exchange Server is a group of email recipients that can be addressed as a single recipient.
• Used to send emails to multiple recipients at once

• Can be created and managed by users or administrators

• Can include both internal and external email addresses

• Can be used for sending newsletters, announcements, etc.
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Q6. What is a shared mailbox in Exchange Server?
Ans. 
A shared mailbox in Exchange Server is a mailbox that multiple users can access to send and receive emails.
• Allows multiple users to access the same mailbox

• Users can send and receive emails on behalf of the shared mailbox

• Useful for departments or teams to manage a common email address

• Can be set up with permissions to control access levels
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Q7. What is the process for applying Group Policy in Active Directory?
Ans. 
Group Policy in Active Directory is applied through a hierarchical process based on site, domain, and organizational unit levels.
• Group Policy objects (GPOs) are created and linked to sites, domains, or organizational units in Active Directory.

• The order of precedence for applying Group Policy is Local, Site, Domain, and Organizational Unit.

• Group Policy settings are inherited from parent containers to child containers un...read more
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Q8. What is the precedence of Group Policy Objects (GPO) in Active Directory?
Ans. 
GPOs are applied in the following order: Local, Site, Domain, OU. The last applied GPO takes precedence.
• Local GPOs are applied first

• Site GPOs are applied next

• Domain GPOs are applied after Site GPOs

• OU GPOs are applied last and take precedence over others

• The last applied GPO takes precedence in case of conflicting settings
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Q9. What is Windows Management Instrumentation (WMI) in Group Policy Objects (GPO)?
Ans. 
WMI in GPO allows administrators to manage Windows settings and resources through a centralized interface.
• WMI is a set of extensions to the Windows Driver Model that provides an operating system interface through which instrumented components provide information and notification.

• In GPO, WMI filters can be used to apply policies based on specific conditions, such as hardware or software configurations.

• Administrators can...read more
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Q10. What is the difference between a distribution list and a shared mailbox?
Ans. 
Distribution list is used for sending emails to a group of people, while a shared mailbox is used for multiple users to access and send emails from a single email address.
• Distribution list is a group email address that sends emails to multiple recipients.

• Shared mailbox is an email address that multiple users can access and send emails from.

• Distribution list is mainly used for broadcasting emails to a group of people.

• Sh...read more
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Q11. What are the differences between the E1, E3, and E5 plans in Microsoft Office 365?
Ans. 
E1, E3, and E5 plans in Microsoft Office 365 differ in features and pricing.
• E1 plan includes basic Office applications and online services.

• E3 plan includes advanced Office applications, email hosting, and online services.

• E5 plan includes all features of E3 plus advanced security and compliance tools.

• E5 plan is the most expensive among the three plans.
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Q12. What is the difference between cloud storage and on-premises storage?
Ans. 
Cloud storage is stored on remote servers accessed over the internet, while on-premises storage is stored locally within an organization's physical location.
• Cloud storage is accessed over the internet, providing flexibility and scalability.

• On-premises storage is physically located within an organization's premises, providing more control over data security.

• Cloud storage is typically managed by a third-party provider, w...read more
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Q13. How can an administrative role be assigned to a user in Active Directory?
Ans. 
An administrative role can be assigned to a user in Active Directory by using the Active Directory Users and Computers tool.
• Open Active Directory Users and Computers tool

• Locate the user to whom you want to assign the administrative role

• Right-click on the user and select Properties

• Go to the Member Of tab

• Click Add and enter the name of the administrative group

• Click OK to save the changes
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Q14. What is Active Directory?
Ans. 
Active Directory is a directory service developed by Microsoft for Windows domain networks.
• Centralized database for managing network resources

• Stores information about users, computers, and other network objects

• Allows for authentication and authorization of users

• Enables single sign-on for users across multiple applications

• Supports group policies for managing security and access control
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Q15. What is Active Directory Domain Services (ADDS)?
Ans. 
ADDS is a service provided by Microsoft Windows Server for managing users, computers, and resources in a network.
• ADDS is a directory service used to store information about network resources such as users, groups, and computers.

• It allows administrators to manage and secure resources within a network.

• ADDS uses a hierarchical structure with domains, trees, and forests to organize network resources.

• It provides features li...read more
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Q16. What is a database schema?
Ans. 
A database schema is a blueprint that defines the structure of a database, including tables, fields, relationships, and constraints.
• Defines the organization of data into tables and columns

• Specifies relationships between tables

• Includes constraints to enforce data integrity

• Can be represented visually using diagrams

• Example: In a library database schema, there may be tables for books, authors, and borrowers with relationsh
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Q17. What is the purpose of the object management system in Active Directory?
Ans. 
The object management system in Active Directory is used to organize and manage objects such as users, groups, and computers within the directory.
• Allows for centralized management of objects within the directory

• Enables administrators to create, modify, and delete objects

• Helps in organizing objects into logical containers for easier management

• Facilitates delegation of administrative tasks to specific users or groups

• Supp...read more
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Q18. How did you apply for this job?
Ans. 
I applied for this job by submitting an online application through the company's career portal.
• Visited company's website and navigated to the careers section

• Filled out the online application form with my personal and professional details

• Uploaded my resume and cover letter as required documents

• Received confirmation email after submitting the application
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Q19. What were your responsibilities in your last job?
Ans. 
In my last job, I was responsible for managing a team of specialists, overseeing project timelines, and ensuring quality control.
• Managed a team of specialists to ensure project completion

• Oversaw project timelines and deadlines

• Ensured quality control measures were implemented and followed

• Collaborated with other departments to meet project goals
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Q20. Are you comfortable working in a rotational shift?
Ans. 
Yes, I am comfortable working in a rotational shift.
• I have previous experience working in rotational shifts and have adapted well to the schedule.

• I understand the importance of flexibility in the workplace and am willing to adjust my schedule as needed.

• I am able to maintain a healthy work-life balance even with a rotational shift.

• I am aware of the potential challenges of working in different shifts and have strategies
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20 - MCQ test related C&C++ basic to advance
2 - coding questions -
1) create class which allows only one instance creation at a time if you try to create another before deleting existing object then class should throw exception..

2) find the distance between leftmost string and rightmost string(string's chars order doesn't matter) In a given long shuffled string.
Ex :-
Shuffled string = "xaxxcxbxxxcxxaxxbx"
target string= "abc"
Ans: 3
(Leftmost string is last index 6
Right most is 9 so 9-6=3)
Note:- other chars not necessarily 'x' it can be any

Q1. Explain oops concepts
Ans. 
OOP is a programming paradigm based on the concept of objects, which can contain data and code to manipulate that data.
• OOP focuses on creating objects that interact with each other to solve complex problems.

• Encapsulation: Objects encapsulate data and behavior within a single unit.

• Inheritance: Objects can inherit attributes and methods from other objects.

• Polymorphism: Objects can take on different forms or have multiple...read more
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Q2. Runtime polymorphism with example
Ans. 
Runtime polymorphism allows objects of different classes to be treated as objects of a common superclass.
• Use virtual functions in base class and override them in derived classes

• Use pointers or references of base class to call derived class methods

• Example: Animal class with virtual function 'makeSound', Dog and Cat classes overriding 'makeSound'
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Q3. Vtable and Vptr working
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Q4. Abstraction and pure virtual function
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Q5. Smart pointers
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Q6. Implementation of STL libraries any container class ex:- Vector
Ans. 
STL libraries provide efficient and easy-to-use container classes like Vector for storing and manipulating data.
• STL Vector is a dynamic array that can resize itself automatically.

• It provides random access to elements, similar to arrays.

• Vector supports various operations like push_back, pop_back, insert, erase, etc.

• Example: std::vector<int> numbers = {1, 2, 3, 4, 5};
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Q7. Singleton class creation (code) what is use of it ?
Ans. 
Singleton class ensures only one instance of a class is created and provides a global point of access to it.
• Ensures only one instance of a class is created

• Provides a global point of access to the instance

• Useful for managing global resources or settings
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Q8. SQL simple questions
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Q9. What is the use of Mutex
Ans. 
Mutex is used in multithreading to prevent multiple threads from accessing shared resources simultaneously.
• Mutex stands for mutual exclusion and is used to synchronize access to shared resources in multithreaded programs.

• It allows only one thread to access the shared resource at a time, preventing data corruption or race conditions.

• Mutexes are typically used in critical sections of code where data integrity is importan...read more
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Q10. Be strong in theoretically (why, what when to use the concept)
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Q1. What tools are you using, and what types of applications are you supporting?
Ans. 
I use tools like remote desktop software, ticketing systems, and knowledge bases to support various applications such as Microsoft Office, antivirus software, and VPN clients.
• Remote desktop software (e.g. TeamViewer, AnyDesk)

• Ticketing systems (e.g. ServiceNow, Jira)

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

• Applications like Microsoft Office, antivirus software, VPN clients
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Q2. What is mean by ITSM , incident management and service request difference, Change management
Ans. 
ITSM stands for Information Technology Service Management. Incident management deals with resolving unplanned interruptions to services. Service request management handles planned service requests. Change management involves controlling changes to IT systems.
• ITSM is a framework that helps organizations manage their IT services efficiently.

• Incident management focuses on restoring normal service operation as quickly as p...read more
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Q3. How do you handle critical operational issues?
Ans. 
I prioritize and escalate critical operational issues to ensure timely resolution and minimal impact on operations.
• Quickly assess the severity and impact of the issue

• Communicate with relevant stakeholders to gather information and coordinate response

• Follow established protocols and procedures for handling critical incidents

• Escalate to higher levels of support or management as needed

• Provide regular updates on the status
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Q4. Can you please explain what kind of issues you are handling
Ans. 
I handle a variety of technical issues related to software, hardware, network connectivity, and user account access.
• Troubleshooting software applications for errors or bugs

• Resolving hardware malfunctions or issues

• Assisting with network connectivity problems

• Resetting passwords and troubleshooting user account access

• Providing technical support for various IT systems and tools
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Q5. What is the difference between Average Handling Time (AHT) and After Call Work (ACW), and what is your First Call Resolution (FCR) score?
Ans. 
AHT is the total time spent on a call including ACW, while ACW is the time spent after the call ends. FCR is the percentage of calls resolved on the first attempt.
• AHT includes the time spent talking to the customer and the time spent on ACW, while ACW is the time spent after the call ends for wrap-up tasks.

• For example, if a call lasts 10 minutes and the ACW is 2 minutes, the AHT would be 12 minutes.

• FCR is the percentag...read more
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Q6. How will the prioritization of tickets be managed before the Service Level Agreement (SLA)?
Ans. 
Tickets are prioritized based on impact, urgency, and customer importance before SLA.
• Tickets are categorized based on impact, urgency, and customer importance.

• High impact issues with urgent resolution needs are given top priority.

• Customer importance may also play a role in prioritization.

• Regular reviews and updates are done to ensure tickets are prioritized correctly.

• Automated ticketing systems may help in prioritizing
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Q1. What is your Understanding of Design control process and what are PLM you have used.
Ans. 
Design control process ensures products meet requirements. PLM tools manage product data.
• Design control process ensures products meet design requirements and regulatory standards

• PLM tools (Product Lifecycle Management) are used to manage product data, documents, and processes

• Examples of PLM tools include Teamcenter, Windchill, and Agile PLM
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Q2. Share your knowledge in writing a protocol and procedure for medical devices.
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Q3. What is NPD(New product development)
Ans. 
NPD is the process of bringing a new product to market from concept to launch.
• NPD involves idea generation, product design, development, testing, and commercialization.

• It requires cross-functional collaboration between engineering, marketing, and other departments.

• Examples include Apple launching a new iPhone model or Tesla introducing a new electric car.
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Q4. Share experience on lab testing methods, material, procedure etc.. of Ethicon Sutures and needle .
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Q5. What is accelerated ageing process in storage chamber of suture testing lab.
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Q6. What about complaint handling process in BD (Becton Dickinson).
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Q1. Resume screening Self introduction Roles and responsibilities
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Given task Statics standard deviations Attrition Average of given table values and Given graph economi graph and poverty graph base on that need to gave answers 30 qustion and 60 min time duration

Q1. Versant test should be need to attend Hirepro will have interview prosess in YouTube will check and prepare mid level hard
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Q2. We can goo for online prosess how it is
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Q1. Manger Level round they will ask KPI NPS AHT standard deviations Service Level handling Root cause Analysis Weighted average Same product how will calculate Totall Swer % how will get Many of like bpi <20 ...read more
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Q1. Salary discussion and update structure of our role and responsibilities
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Q1. Explain ETL pipeline ecosystem in Azure Databricks?
Ans. 
ETL pipeline ecosystem in Azure Databricks involves data extraction, transformation, and loading processes using various tools and services.
• ETL process involves extracting data from various sources such as databases, files, and streams.

• Data is then transformed using tools like Spark SQL, PySpark, and Scala to clean, filter, and aggregate the data.

• Finally, the transformed data is loaded into target systems like data war...read more
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Q2. Star vs Snowflake schema, when to use?
Ans. 
Star schema for simple queries, Snowflake schema for complex queries with normalized data.
• Star schema denormalizes data for faster query performance.

• Snowflake schema normalizes data for better data integrity and storage efficiency.

• Use Star schema for simple queries with less joins.

• Use Snowflake schema for complex queries with multiple joins and normalized data.

• Example: Star schema for a data warehouse used for reportin
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Q3. Find Salary higher than Average department salary
Ans. 
To find salaries higher than average department salary, compare each salary to the department average.
• Calculate the average salary for the department

• Compare each individual salary to the department average

• Identify salaries that are higher than the average
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Q4. Implementation of SCD2 table
Ans. 
SCD2 table implementation involves tracking historical changes in data by adding new records with effective dates.
• Create a new row for each change in data with a new effective date

• Add columns like start_date and end_date to track the validity period of each record

• Use a surrogate key to uniquely identify each record

• Implement logic to handle updates and inserts accordingly
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Q5. How incremental loading is done
Ans. 
Incremental loading is the process of adding new data to an existing dataset without reloading all the data.
• Identify new data since the last load

• Update the existing dataset with the new data

• Maintain data integrity and consistency

• Use timestamps or unique identifiers to track changes

• Avoid duplicate entries and ensure data quality
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Q1. What is the deference between methods and constructors
Ans. 
Methods are functions within a class that define behavior, while constructors are special methods used to initialize objects.
• Methods are used to perform actions or operations within a class.

• Constructors are special methods used to initialize objects when they are created.

• Methods can have return types and parameters, while constructors do not have return types and have the same name as the class.

• Example: Method 'calcula...read more
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Q2. What is interface
Ans. 
An interface in automation testing refers to the point of interaction between two systems or components.
• An interface defines the methods that a class must implement, without specifying how they are implemented.

• Interfaces allow for loose coupling between different components, making it easier to change or update one without affecting the other.

• In automation testing, interfaces are used to interact with the application u...read more
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Q3. Where we can use final keyboard
Ans. 
The final keyword in Java can be used to declare constants, prevent method overriding, and prevent inheritance.
• To declare constants in Java

• To prevent method overriding in Java

• To prevent inheritance in Java
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Q4. What is polymorphism
Ans. 
Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to represent multiple data types.

• Examples include method overloading and method overriding in object-oriented programming.
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Q5. What is inheritance and types of inheritance
Ans. 
Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Types of inheritance: single inheritance, multiple inheritance, multilevel inheritance, hierarchical inheritance

• Example: Class B inherits from Class A, Class C inherits from Class B, creating a multilevel inheritance

• Example: Class D inherits from Class A and Class B, demonstrating multiple inherita
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