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HCLTech Interview Questions and Answers for Freshers
211 Interview questions
Containerizing a monolithic application involves packaging it with its dependencies into a container for easier deployment and management.
Identify the application components and dependencies, such as libraries and databases.
Create a Dockerfile that specifies the base image, application code, and dependencies.
Use Docker commands to build the image and run the container, e.g., 'docker build -t myapp .' and 'docker r...
Deploying Terraform code involves planning, applying changes, and managing state for infrastructure as code.
1. Write Terraform code: Define resources in .tf files, e.g., EC2 instances, S3 buckets.
2. Initialize Terraform: Run 'terraform init' to set up the working directory and download providers.
3. Plan changes: Use 'terraform plan' to preview changes and ensure they align with expectations.
4. Apply changes: Execu...
Group policies are rules applied to groups in IT environments to manage user and computer settings.
Group policies are used in Windows environments to enforce security settings.
There are two main types of groups: Security Groups and Distribution Groups.
Security Groups control access to resources, e.g., granting file permissions.
Distribution Groups are used for email distribution lists, e.g., a team mailing list.
Gro...
Sales is the process of exchanging goods or services for money, focusing on customer needs and relationship building.
Sales involves identifying potential customers and understanding their needs.
Effective sales strategies include building relationships and trust with clients.
For example, a car salesperson may offer test drives to help customers make informed decisions.
Sales can occur through various channels, inclu...
Yes, Python provides various ways to store data in memory using variables, data structures, and built-in libraries.
Variables: Store single values, e.g., x = 10.
Lists: Store ordered collections, e.g., my_list = [1, 2, 3].
Dictionaries: Store key-value pairs, e.g., my_dict = {'name': 'Alice', 'age': 25}.
Sets: Store unique values, e.g., my_set = {1, 2, 3}.
Using libraries like NumPy for efficient array storage.
To handle unanswered queries before a shift change, ensure proper communication and documentation for continuity.
Document the Query: Write down the details of the unanswered query, including who it was directed to and any relevant context.
Inform the Incoming Team: Communicate the pending query to the incoming team member, ensuring they are aware and can follow up.
Set a Follow-Up Reminder: Use task management tools...
SQL joins combine rows from two or more tables based on related columns.
INNER JOIN: Returns records with matching values in both tables. Example: SELECT * FROM A INNER JOIN B ON A.id = B.id;
LEFT JOIN: Returns all records from the left table and matched records from the right table. Example: SELECT * FROM A LEFT JOIN B ON A.id = B.id;
RIGHT JOIN: Returns all records from the right table and matched records from the ...
OOP is a programming paradigm based on objects, encapsulating data and behavior for modular and reusable code.
Encapsulation: Bundling data and methods that operate on the data within one unit (e.g., a class).
Inheritance: Mechanism to create a new class from an existing class, inheriting attributes and methods (e.g., a 'Dog' class inheriting from an 'Animal' class).
Polymorphism: Ability to present the same interfac...
MVC is a design pattern that separates an application into three interconnected components: Model, View, and Controller.
Model: Represents the data and business logic. Example: A class that handles user data.
View: Displays the data to the user. Example: HTML/CSS templates that render user interfaces.
Controller: Manages user input and interacts with the Model. Example: A function that processes form submissions.
GitHub is a web-based platform for version control and collaboration, allowing developers to manage and share code repositories.
Version Control: GitHub uses Git for version control, enabling tracking of changes in code over time.
Collaboration: Multiple developers can work on the same project simultaneously, merging their changes seamlessly.
Repositories: Projects are stored in repositories, which can be public or p...
HCLTech Interview Experiences for Freshers
440 interviews found
Anonymous
I applied via Campus Placement and was interviewed in Nov 2024. There were 2 interview rounds.
The assessment comprised an aptitude test and a coding test, featuring seventy-five questions with a duration of approximately two hours. The questions ranged in difficulty from easy to moderate and were all in multiple-choice format.
(6 Questions)
- Q1. Questions on HTML tags
- Q2. Questions on Python exceptional Handling
- Q3. Questions on SQl
- Q4. Questions on OOPs
- Q5. Question on DSA
- Q6. Questions on ServiceNow as I was applied for a ServiceNow role.
Interview Preparation Tips
Selected
I applied via Approached by Company and was interviewed in Oct 2024. There was 1 interview round.
(3 Questions)
- Q1. 1) OOPS in java, and told to explain abstraction, encapsulation, inheritance with practical code 2) Exception handling(globally), Authentication and authorization 3) SOLID principles and factory design pat...
- Ans.
Interview questions for Software Engineer position covering OOPS concepts, exception handling, SOLID principles, Java 8 features, and Streams.
Abstraction in OOPS: Hiding implementation details. Example: Abstract class Shape with method draw().
Encapsulation in OOPS: Bundling data and methods that operate on the data. Example: Class Employee with private fields and public getters/setters.
Inheritance in OOPS: Reusing code...
- Q2. 1) Advantage of springboot over spring 2) Tell me all the anotations you know in spring 3) What are CRUD operations, write controller layer and use validating annotations like @NotNull, @valid etc. how to ...
- Ans.
The interview questions cover various topics related to Spring framework, REST vs SOAP, JPA repository, Feign client, circuit breaker, and Spring Security.
Spring Boot provides a simpler and faster way to set up and run Spring applications compared to traditional Spring.
Common annotations in Spring include @Controller, @Service, @Repository, @Autowired, @Component, @RequestMapping, @GetMapping, @PostMapping, @PutMapping...
- Q3. 1) ACID properties 2) DBMS commands 3) inner queries 4) Joins 5) S3 bucket congif and how to handle file and upload and retrieve in s3 6) Ci/Cd basic flow and docker explaination
Interview Preparation Tips
Skills evaluated in this interview
Selected
I appeared for an interview in Feb 2025.
Multiple sections, which includes quants, verbal, reasoning, pseudo codes.
Virtual GD round , gives two min to talk
(1 Question)
- Q1. Basics of coding , puzzles, oops concept.
(1 Question)
- Q1. Formal HR Questions
(5 Questions)
- Q1. Technical questions
- Q2. Tell me about yourself
- Ans.
I am a Senior Data Engineer with 8 years of experience in designing and implementing data pipelines for large-scale projects.
Experienced in building and optimizing ETL processes
Proficient in programming languages such as Python, SQL, and Java
Skilled in working with big data technologies like Hadoop, Spark, and Kafka
Strong background in data modeling and database design
Familiar with cloud platforms like AWS and Azure
- Q3. Questions on SQL queries
- Q4. Python questions
- Q5. DBT/snowflake questions
Interview Preparation Tips
Selected
(2 Questions)
- Q1. Most asked from resume how to do outlook configuration?
- Ans.
Outlook configuration involves setting up email accounts, preferences, and connectivity for effective email management.
Open Outlook and go to 'File' > 'Account Settings' > 'Account Settings'.
Click 'New' to add a new email account and select 'Email Account'.
Enter your name, email address, and password, then click 'Next'.
Outlook will attempt to configure your account automatically; if it fails, select 'Manual setup...
- 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)
(1 Question)
- Q1. Basic English listening and speaking skills checks should be carefully listen and speak it's easy but be careful
(1 Question)
- Q1. Salary negotiation
kalyan krishna
I applied via Campus Placement and was interviewed in Jul 2024. There were 2 interview rounds.
(11 Questions)
- Q1. Self introduction
- Q2. Projects done in training
- Ans.
I have completed multiple projects during my training in SAP ABAP.
Developed a custom report to track sales data for a retail client
Enhanced existing programs to improve performance and functionality
Worked on a team project to integrate SAP modules for a manufacturing company
- Q3. Bdc concepts call transaction and session method
- Ans.
BDC in SAP ABAP allows data transfer using Call Transaction and Session methods for batch processing.
BDC (Batch Data Communication) is used for data transfer in SAP.
Call Transaction method processes data in real-time, suitable for immediate updates.
Session method processes data in the background, allowing for error handling and logging.
Example of Call Transaction: Updating a customer record immediately after data entry...
- Q4. Asked Select query
- Q5. Asked about Itab and how to declare it
- Q6. Asked about smart forms and it's stpes
- Q7. Asked about Domain and Data element
- Q8. Asked about Bapi
- Ans.
BAPIs are standardized programming interfaces in SAP for accessing business processes and data.
BAPIs are part of the Business Object Repository (BOR).
They allow external applications to interact with SAP systems.
Example: BAPI_SALESORDER_CREATEFROMDAT2 for creating sales orders.
BAPIs ensure data consistency and integrity during transactions.
They can be called from various environments, including Java and .NET.
- Q9. Asked about Idoc
- Q10. Material creation and types of bapi
- Ans.
Material creation in SAP involves using BAPIs for different types of materials.
BAPI_MATERIAL_SAVEDATA can be used for creating materials in SAP
Different types of materials include raw materials, semi-finished goods, finished goods, etc.
BAPI_MATERIAL_GET_ALL can be used to retrieve information about all materials in SAP
- Q11. About my previous profession
(10 Questions)
- Q1. Self introduction
- Q2. Technical settings
- Q3. Asked about data class
- Q4. Module pool programming steps
- Ans.
Module pool programming is a technique in SAP ABAP for creating interactive user interfaces.
Define screen elements using Screen Painter
Write ABAP code for screen logic and flow control
Handle user input and trigger actions based on user interactions
Use function modules for backend processing
Implement navigation between screens
- Q5. Asked about IDOC
- Q6. Asked about Enhancements
- Q7. What is function module and where we use it?
- Ans.
Function module is a reusable subroutine in SAP ABAP used for specific functionality.
Function modules are standalone functions that can be called from any ABAP program.
They are used to encapsulate specific business logic or calculations.
Function modules can be called remotely from other systems using Remote Function Call (RFC).
Examples include function modules for currency conversion, date calculations, or data validat...
- Q8. How to change input parameters in reports
- Ans.
Input parameters in reports can be changed by modifying the selection screen fields in the ABAP program.
Modify the selection screen fields in the ABAP program to change input parameters
Use PARAMETERS or SELECT-OPTIONS statements to define input fields
Update the logic in the report program to process the new input parameters
- Q9. Smart forms vs sap scripts
- Ans.
Smart forms are newer and more advanced than SAP scripts.
Smart forms are newer technology compared to SAP scripts.
Smart forms offer more features and flexibility in designing forms.
Smart forms are easier to maintain and modify compared to SAP scripts.
Smart forms support interactive forms and digital signatures.
SAP scripts are older technology and are being phased out in favor of smart forms.
- Q10. Search help types
Interview Preparation Tips
Skills evaluated in this interview
Selected
I appeared for an interview in Mar 2025, where I was asked the following questions.
- Q1. Do you know about threads?
- Ans.
Threads are lightweight processes that enable concurrent execution within a program, sharing resources for efficiency.
Threads share the same memory space, allowing for faster communication.
They can improve application performance by utilizing multi-core processors.
Example: In a web server, one thread can handle multiple client requests simultaneously.
Threads can be created using libraries like pthreads in C or the Thre...
- Q2. How is the backend utilized for authorized API calls?
- Ans.
The backend manages authorized API calls through authentication, authorization, and secure data handling.
Authentication verifies user identity using tokens or credentials (e.g., JWT).
Authorization checks user permissions to access specific resources (e.g., role-based access).
Secure data transmission is ensured using HTTPS to protect sensitive information.
Rate limiting is implemented to prevent abuse of API calls (e.g.,...
- Q3. What are the steps to implement a floating video advertisement on a website?
- Ans.
Implementing a floating video ad involves HTML, CSS, and JavaScript for positioning and functionality.
1. Create an HTML structure for the video ad using <video> tag or an <iframe> for embedding.
2. Use CSS to style the video ad, ensuring it floats over the content. Example: position: fixed; bottom: 10px; right: 10px;
3. Implement JavaScript to control the ad's behavior, like play/pause or close functionality....
- Q4. What is the recent tech related news that you have heard?
- Ans.
AI advancements continue to dominate tech news, with new models enhancing productivity and creativity across various industries.
OpenAI released ChatGPT-4, improving natural language understanding and generation.
Google announced updates to its AI tools, enhancing search capabilities and user experience.
Microsoft integrated AI features into Office 365, boosting productivity for users.
AI-generated art and music are gainin...
Interview Preparation Tips
Selected
I appeared for an interview in Feb 2025.
(2 Questions)
- Q1. What is AAA in Cyber security? Difference between Authentication vs Authorization
- Ans.
AAA in cybersecurity stands for Authentication, Authorization, and Accounting, crucial for securing systems.
Authentication verifies user identity (e.g., passwords, biometrics).
Authorization determines user permissions (e.g., access to files).
Accounting tracks user activities (e.g., logging access times).
Example: A user logs in (Authentication), accesses a file (Authorization), and their actions are logged (Accounting).
- Q2. IDS vs IPS
- Ans.
IDS detects intrusions, while IPS actively prevents them, enhancing network security.
IDS (Intrusion Detection System) monitors network traffic for suspicious activity.
IPS (Intrusion Prevention System) not only detects but also blocks potential threats.
Example of IDS: Snort, which analyzes traffic and alerts administrators.
Example of IPS: Cisco Firepower, which can block malicious traffic in real-time.
IDS is typically p...
(1 Question)
- Q1. Tell me about your hobbies
- Ans.
I enjoy hiking, reading, and photography, which help me relax and explore my creativity.
Hiking: I love exploring nature trails and discovering new landscapes, often going on weekend hikes with friends.
Reading: I read a variety of genres, from fiction to non-fiction, and recently finished a book on cybersecurity.
Photography: I enjoy capturing moments during my hikes, focusing on landscapes and wildlife, and I often shar...
Selected
I applied via Campus Placement and was interviewed in Jun 2024. There were 4 interview rounds.
It consists of numerous types of reasoning and quants questions. They are basic level.
(2 Questions)
- Q1. About your project.
- Q2. About basics of algorithm.
(2 Questions)
- Q1. Introduce yourself
- Q2. About your past interview experiences.
(2 Questions)
- Q1. Introduce and showcase your result.
- Ans.
I successfully designed and implemented a new software system for optimizing energy consumption in buildings.
Researched current energy consumption trends in buildings
Developed algorithms to analyze and optimize energy usage
Implemented software system using Python and SQL
Conducted testing and validation to ensure accuracy
Resulted in 20% reduction in energy consumption in test buildings
- Q2. Libraries of python and how to add python with database.
- Ans.
Python has libraries like SQLAlchemy, psycopg2 for database connectivity. Use these libraries to connect Python with databases.
Use SQLAlchemy library for ORM (Object Relational Mapping) to interact with databases.
Use psycopg2 library for direct interaction with PostgreSQL database.
Install the required libraries using pip install
. Establish connection to the database using appropriate credentials.
Execute SQL queries usi...
Interview Preparation Tips
Skills evaluated in this interview
Selected
I appeared for an interview in May 2025, where I was asked the following questions.
- Q1. Tell me something about yourself
- Q2. Tell me something about your hobbies
- Ans.
I enjoy painting, hiking, and reading, which help me relax and express my creativity while staying active and informed.
Painting: I love experimenting with watercolors and acrylics, often painting landscapes and abstract art.
Hiking: I frequently explore local trails, enjoying nature and the physical challenge it provides.
Reading: I read a variety of genres, from fiction to self-help, which broadens my perspective and en...
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