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TCS System Engineer Interview Questions and Answers for Experienced
123 Interview questions
SQL queries are structured commands used to interact with relational databases, enabling data retrieval, manipulation, and management.
SQL stands for Structured Query Language, used for managing relational databases.
Common SQL operations include SELECT (to retrieve data), INSERT (to add data), UPDATE (to modify data), and DELETE (to remove data).
Example of a SELECT query: SELECT * FROM employees WHERE department = ...
Encapsulation is a fundamental concept in object-oriented programming that restricts access to certain components.
Encapsulation combines data and methods into a single unit called a class.
It restricts direct access to some of an object's components, which is a means of preventing unintended interference.
For example, a class may have private variables that can only be accessed through public methods (getters and se...
CRM systems manage customer relationships, streamline processes, and enhance communication to improve business relationships.
Centralizes customer data for easy access and management.
Tracks customer interactions and history for personalized service.
Automates marketing campaigns, like email newsletters.
Facilitates sales tracking and forecasting, e.g., pipeline management.
Enhances customer support with ticketing syst...
IP stands for Internet Protocol, a set of rules governing data transmission over networks.
IP addresses are unique identifiers for devices on a network, e.g., 192.168.1.1.
There are two main versions: IPv4 (32-bit) and IPv6 (128-bit).
IP is responsible for routing packets of data between devices.
It operates at the network layer of the OSI model.
IP can be static (fixed) or dynamic (assigned by DHCP).
What people are saying about TCS
Amazon CloudWatch is a monitoring and observability service for AWS cloud resources and applications.
Provides real-time monitoring of AWS resources like EC2, RDS, and S3.
Allows users to set alarms based on metrics, e.g., CPU utilization exceeding a threshold.
Offers log management capabilities, enabling users to collect and analyze log files.
Integrates with AWS services to automate responses, such as scaling EC2 in...
To add an EC2 instance in AWS, use the AWS Management Console or CLI to configure and launch your instance.
Log in to the AWS Management Console.
Navigate to the EC2 Dashboard.
Click on 'Launch Instance' to start the wizard.
Choose an Amazon Machine Image (AMI) based on your needs (e.g., Ubuntu, Windows).
Select an instance type (e.g., t2.micro for free tier eligibility).
Configure instance details like network settings...
In Java, 'throw' is used to explicitly throw an exception, while 'throws' declares exceptions that may be thrown by a method.
throw: Used to throw an exception explicitly. Example: throw new NullPointerException();
throws: Used in method signatures to declare exceptions that can be thrown. Example: public void myMethod() throws IOException {}
throw can be used anywhere in the method body, while throws is used in the ...
Spring MVC is a framework for building web applications in Java, following the Model-View-Controller design pattern.
1. Client sends a request to the DispatcherServlet.
2. DispatcherServlet consults the HandlerMapping to find the appropriate controller.
3. The controller processes the request and returns a ModelAndView object.
4. The DispatcherServlet uses ViewResolver to select the view based on the ModelAndView.
5. T...
Microservices in Spring Boot can communicate using REST APIs, messaging queues, or gRPC for efficient data exchange.
Use REST APIs: Microservices expose endpoints using @RestController and communicate via HTTP.
Example: Service A calls Service B's endpoint using RestTemplate or WebClient.
Message Brokers: Use RabbitMQ or Kafka for asynchronous communication between services.
Example: Service A sends a message to a que...
Securing Spring Boot applications involves implementing various security measures to protect against vulnerabilities.
Use Spring Security for authentication and authorization.
Implement HTTPS to encrypt data in transit.
Validate user inputs to prevent SQL injection and XSS attacks.
Use JWT (JSON Web Tokens) for stateless authentication.
Regularly update dependencies to patch known vulnerabilities.
Configure CORS (Cross-...
TCS System Engineer Interview Experiences for Experienced
366 interviews found
Anonymous
I appeared for an interview in Dec 2024.
(2 Questions)
- Q1. All Linux commands and options
- Ans.
There are numerous Linux commands with various options for system engineers to manage and troubleshoot systems.
Commands like ls, cd, mkdir for file system operations
Commands like ps, top, htop for process management
Commands like ifconfig, ip, route for network configuration
Commands like grep, sed, awk for text processing
Options like -r for recursive, -f for force, -l for long listing
- Q2. How to configure NFS, NTP,DNS servers
- Ans.
To configure NFS, NTP, and DNS servers, you need to edit configuration files and restart the respective services.
Edit /etc/exports file for NFS server configuration
Edit /etc/ntp.conf file for NTP server configuration
Edit /etc/named.conf file for DNS server configuration
Restart nfs, ntp, and named services after making changes
(2 Questions)
- Q1. Linux Patch Management
- Q2. Linux servers updates
(1 Question)
- Q1. Why you want to join TCS
- Ans.
I want to join TCS because of its reputation for innovation and growth opportunities.
TCS is known for its cutting-edge technology solutions
I am impressed by TCS's commitment to employee development
I believe TCS will provide me with a challenging and rewarding work environment
I applied via Naukri.com and was interviewed in Dec 2024. There were 2 interview rounds.
(3 Questions)
- Q1. Technical based
- Q2. What is different between workgroup and domain
- Ans.
Workgroup is a peer-to-peer network where each computer has its own security settings, while a domain is a centralized network managed by a server with shared security settings.
Workgroup is decentralized, each computer manages its own security settings
Domain is centralized, managed by a server with shared security settings
Workgroup is suitable for small networks, domain is suitable for larger networks
In a workgroup, us...
- Q3. What should a system administrator`s routine be?
- Ans.
A system administrator's routine involves monitoring system performance, troubleshooting issues, implementing security measures, and maintaining backups.
Regularly monitoring system performance and resource usage
Troubleshooting and resolving technical issues as they arise
Implementing and maintaining security measures to protect the system from cyber threats
Performing regular backups and ensuring data integrity
Updating s...
(1 Question)
- Q1. Dsfsdf sdfsd sdf sd f
Interview Preparation Tips
Akash Ghadage
Selected
Aptitude tests typically assess quantitative skills and reasoning abilities.
Two programming questions: the first is easy, and the second is medium.
(2 Questions)
- Q1. Can you describe your background and experience? What can you share about your project-related experiences?
- Ans.
I have a strong background in system engineering with experience in various projects.
Bachelor's degree in Computer Science with a focus on system engineering
Worked on implementing and maintaining network infrastructure for a large corporation
Experience with virtualization technologies such as VMware and Hyper-V
Managed projects involving system upgrades and migrations
Certified in Cisco networking and Microsoft server te...
- Q2. What is your understanding of Java Object-Oriented Programming (OOP)?
- Ans.
Java OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
Java OOP involves the use of classes and objects.
Encapsulation is a key concept where data is kept private within a class and accessed through public methods.
Inheritance allows one class to inherit attributes and methods from another class.
Polymorphism enables objects to be...
Interview Preparation Tips
(2 Questions)
- Q1. Technical about OTC cycle
- Q2. Questions on your previous work
(2 Questions)
- Q1. Salary discussed
- Q2. Joining date discussed
Afroz Pasha
Small coding challenges consisting of 2 questions
(2 Questions)
- Q1. Introduce yourself
- Ans.
I am a highly skilled System Engineer with 5+ years of experience in designing, implementing, and maintaining complex IT systems.
5+ years of experience in system engineering
Proficient in designing and implementing IT systems
Strong troubleshooting and problem-solving skills
Experience with network security and data protection
Certified in relevant technologies such as Cisco or Microsoft
- Q2. What project you have worked on
- Ans.
I have worked on a project to implement a new network infrastructure for a large company.
Designed network architecture to support increased bandwidth requirements
Implemented new routers and switches to improve network performance
Configured security protocols to protect against cyber threats
Interview Preparation Tips
Selected
I applied via Nqt and was interviewed in Nov 2024. There were 4 interview rounds.
,apti include normal math question and Reasoning math
I choose python for code
(1 Question)
- Q1. They are asking basic programming questions, then opps concept
(1 Question)
- Q1. We are discussing about salary ,shift tyming
Interview Preparation Tips
Selected
I appeared for an interview before Jun 2024, where I was asked the following questions.
- Q1. What projects have you worked on?
- Q2. What are difficulties you have faced during them
- Q3. What motivated you to choose Tata Consultancy Services (TCS)?
- Ans.
I chose TCS for its innovation, global presence, and commitment to employee growth and community development.
TCS is a leader in technology and innovation, which aligns with my passion for cutting-edge solutions.
The company's global presence offers opportunities to work on diverse projects and collaborate with international teams.
TCS's commitment to employee development through training programs and mentorship is crucia...
Selected
I appeared for an interview in May 2025, where I was asked the following questions.
- Q1. What is IP
- Ans.
IP stands for Internet Protocol, a set of rules governing data transmission over networks.
IP addresses are unique identifiers for devices on a network, e.g., 192.168.1.1.
There are two main versions: IPv4 (32-bit) and IPv6 (128-bit).
IP is responsible for routing packets of data between devices.
It operates at the network layer of the OSI model.
IP can be static (fixed) or dynamic (assigned by DHCP).
- Q2. What is cloudwatch
- Ans.
Amazon CloudWatch is a monitoring and observability service for AWS cloud resources and applications.
Provides real-time monitoring of AWS resources like EC2, RDS, and S3.
Allows users to set alarms based on metrics, e.g., CPU utilization exceeding a threshold.
Offers log management capabilities, enabling users to collect and analyze log files.
Integrates with AWS services to automate responses, such as scaling EC2 instanc...
- Q3. How can add ec2 in Aws
- Ans.
To add an EC2 instance in AWS, use the AWS Management Console or CLI to configure and launch your instance.
Log in to the AWS Management Console.
Navigate to the EC2 Dashboard.
Click on 'Launch Instance' to start the wizard.
Choose an Amazon Machine Image (AMI) based on your needs (e.g., Ubuntu, Windows).
Select an instance type (e.g., t2.micro for free tier eligibility).
Configure instance details like network settings and ...
Interview Preparation Tips
Selected
I appeared for an interview in May 2025, where I was asked the following questions.
- Q1. How crm works
- Ans.
CRM systems manage customer relationships, streamline processes, and enhance communication to improve business relationships.
Centralizes customer data for easy access and management.
Tracks customer interactions and history for personalized service.
Automates marketing campaigns, like email newsletters.
Facilitates sales tracking and forecasting, e.g., pipeline management.
Enhances customer support with ticketing systems a...
- Q2. Why you want to join tcs
- Ans.
I want to join TCS for its innovative projects, growth opportunities, and commitment to employee development in a dynamic work environment.
TCS is a leader in technology and innovation, allowing me to work on cutting-edge projects.
The company's emphasis on continuous learning aligns with my career goals; for example, TCS offers various training programs.
TCS has a strong global presence, providing opportunities to collab...
Selected
I appeared for an interview in May 2025, where I was asked the following questions.
- Q1. Array search sort binary sort
- Q2. Linkedlist tuple python
TCS Interview FAQs
Some of the top questions asked at the TCS System Engineer interview for experienced candidates -
The duration of TCS System Engineer interview process can vary, but typically it takes about less than 2 weeks to complete.
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TCS Interviews By Designations
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Rating in categories
|
System Engineer
1.1L
salaries
|  ₹1 L/yr - ₹9 L/yr |
|
IT Analyst
65.6k
salaries
| ₹5.1 L/yr - ₹16.8 L/yr |
|
AST Consultant
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salaries
| ₹8 L/yr - ₹25 L/yr |
|
Assistant System Engineer
33.2k
salaries
| ₹2.6 L/yr - ₹6.4 L/yr |
|
Associate Consultant
32.8k
salaries
| ₹9 L/yr - ₹33.6 L/yr |
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