TCS Interview Questions, Process, and Tips

I am a highly motivated and experienced System Engineer with a passion for problem-solving and innovation.

• I have a Bachelor's degree in Computer Science and over 5 years of experience in system engineering.

• I am skilled in designing, implementing, and maintaining complex systems.

• I have experience in working with various operating systems, including Windows, Linux, and Unix.

• I am proficient in programming languages such a...read more

A milling process involves removing material from a workpiece using a rotating cutting tool.

• Select appropriate cutting tool and workpiece material

• Determine the cutting speed, feed rate, and depth of cut

• Set up the milling machine and secure the workpiece

• Start the machine and monitor the process for any issues

• Inspect the finished product for accuracy and quality

Modeling an upsetting operation involves understanding process parameters and their relationships.

• Upsetting is a metal forming process that involves compressing a metal workpiece to reduce its length and increase its diameter.

• Process parameters include temperature, pressure, and deformation rate.

• Temperature affects the material's flow stress and ductility, while pressure and deformation rate affect the material's strai...read more

Yes, I know coding.

• I am proficient in programming languages such as Java, Python, and C++.

• I have experience in developing and maintaining software applications.

• I am familiar with software development methodologies such as Agile and Waterfall.

Yes, I am willing to learn coding if it is needed.

• I have some basic knowledge of coding and am willing to improve my skills.

• I am a quick learner and can adapt to new technologies easily.

• I am open to taking courses or attending training sessions to improve my coding skills.

• Learning coding will also help me better understand the systems I work with.

• For example, I have experience with Python and SQL, and can learn other l

Yes, I am comfortable with working on different projects as per completion of each project.

• I am adaptable and can quickly switch between projects

• I enjoy learning new things and taking on new challenges

• I am able to prioritize tasks and manage my time effectively

• Examples: In my previous job, I worked on multiple projects simultaneously and was able to successfully complete them all within their respective deadlines

• I am e...read more

Yes, I am comfortable with programming and algorithm development.

• I have experience in programming languages such as Python, Java, and C++.

• I have developed algorithms for various projects in my previous roles.

• I am always willing to learn new programming languages and improve my skills.

• I understand the importance of engineering and IT working together to achieve project goals.

TCS is a global IT services, consulting and business solutions organization.

• TCS is one of the largest IT services companies in the world

• It provides a wide range of services including consulting, application development, and infrastructure management

• TCS has a strong presence in various industries such as banking, healthcare, and retail

• It has won numerous awards for its services and innovation

• TCS is headquartered in Mumb...read more

The technical interview was challenging but fair. I would rate it an 8 out of 10.

• The interviewer asked a variety of technical questions related to the job.

• I was given a few hypothetical scenarios to work through.

• I was asked to explain my thought process and reasoning behind my answers.

• Overall, the interview was a good test of my technical skills and problem-solving abilities.

Stored procedures are pre-written SQL codes that can be saved and reused.

• Stored procedures can improve database performance by reducing network traffic.

• They can be used to enforce business rules and security measures.

• They can be parameterized to accept input values and return output values.

• Examples include procedures for inserting, updating, and deleting data.

• They can also be used for complex operations such as data ag

Stored procedures offer advantages such as improved performance, security, and code reusability.

• Stored procedures can reduce network traffic by executing multiple SQL statements at once.

• They can also improve performance by pre-compiling SQL statements.

• Stored procedures can enhance security by allowing access to only specific procedures rather than entire tables.

• They promote code reusability by allowing multiple applica...read more

Functions return a value while stored procedures do not.

• Functions are used to perform a specific task and return a value to the caller.

• Stored procedures are used to execute a set of statements and do not return a value.

• Functions can be used in SELECT, WHERE, and HAVING clauses.

• Stored procedures can be used to modify data, but functions cannot.

• Functions can be called from within a stored procedure.

A normal function is called directly in the code, while a stored procedure is invoked using a database query.

• Normal function calling is done within the program code, while stored procedure invocation is done through a database query.

• Normal functions are defined and called within the same programming language, while stored procedures are defined and invoked within a database management system.

• Normal function calling is ...read more

Constructors are special methods used to initialize objects in a class.

• Constructors have the same name as the class they belong to.

• They are called automatically when an object is created.

• They can be used to set default values for object properties.

• Constructors can be overloaded to accept different parameters.

• Example: public class Car { public Car() { //constructor code here } }

A constructor is a special method used to initialize an object, while a method is a function that performs a specific task.

• Constructors are called automatically when an object is created, while methods need to be called explicitly.

• Constructors have the same name as the class, while methods can have any valid name.

• Constructors do not have a return type, while methods can have a return type.

• Constructors are used to set i...read more

Constructor is a special method used to initialize objects in a class.

• Constructors have the same name as the class they belong to.

• They are called automatically when an object is created.

• They can take parameters to initialize the object's properties.

• They do not have a return type.

• Multiple constructors can be defined with different parameters.

• Example: public class Car { public Car(String make, String model) { ... } }

Assignment is assigning a value to a variable, while initialization is declaring and assigning a value to a variable.

• Assignment changes the value of an existing variable, while initialization creates a new variable and assigns a value to it.

• Initialization is done only once, while assignment can be done multiple times.

• Example of initialization: int x = 5; Example of assignment: x = 10;

• Initialization can also be done usi...read more

Code to allocate memory to an object

• Use the 'new' keyword in C++ to allocate memory to an object

• Use 'malloc' function in C to allocate memory to an object

• In Java, memory is automatically allocated to an object using 'new' keyword

• In Python, memory is automatically allocated to an object when it is created

DBMS stands for Database Management System. It is a software that manages and organizes data in a structured manner.

• DBMS is a software system that allows users to create, retrieve, update, and manage databases.

• It provides an interface for users to interact with the database and perform various operations.

• DBMS ensures data integrity, security, and consistency.

• It supports multiple users accessing the database simultaneou...read more

DBMS is a software system that manages databases, providing features like data storage, retrieval, and manipulation.

• DBMS stands for Database Management System.

• It provides a structured way to store and organize data.

• DBMS allows multiple users to access and manipulate the data simultaneously.

• It ensures data integrity and security through various mechanisms.

• DBMS provides a query language to retrieve and manipulate data, s...read more

Deadlocks occur when two or more processes are unable to proceed because each is waiting for the other to finish.

• Deadlocks happen when two or more processes are blocked and unable to proceed

• Each process is waiting for a resource that is being held by another process

• Deadlocks can be prevented by using techniques like resource allocation graphs and banker's algorithm

• Examples of deadlocks include the dining philosophers p

Yes, phantom deadlocks are a type of deadlock that occur due to incorrect lock ordering.

• Phantom deadlocks occur when multiple processes or threads attempt to acquire locks in a different order.

• This can lead to a situation where each process is waiting for a lock held by another process, resulting in a deadlock.

• Phantom deadlocks can be difficult to detect and reproduce as they are intermittent and depend on the timing o...read more

Procedural programming focuses on procedures and functions, while OOP emphasizes objects and classes.

• Procedural programming uses a top-down approach, while OOP uses a bottom-up approach.

• In procedural programming, data and functions are separate, while in OOP, they are encapsulated within objects.

• Procedural programming is more suitable for small-scale programs, while OOP is better for large-scale projects.

• C is a procedu...read more

JSP is a Java-based technology used for creating dynamic web pages. It allows embedding Java code within HTML pages.

• JSP stands for JavaServer Pages.

• It is a technology used for developing web applications.

• JSP allows embedding Java code within HTML pages.

• It provides a simplified way to create dynamic web content.

• JSP files are compiled into servlets and executed on the server.

• Advantages of JSP include easy integration wit...read more

PHP was chosen for its versatility, large community support, and ease of use.

• PHP is a widely used scripting language with a large community of developers and extensive documentation.

• It is known for its versatility and ability to integrate with various databases and web servers.

• PHP is also relatively easy to learn and has a low learning curve compared to other languages like JSP.

• While JSP may be considered more secure, ...read more

File System in C++ is used for managing files and directories, providing functions for file input/output operations.

• C++ provides the library for file input/output operations.

• File streams can be used to read from and write to files.

• Common file operations include opening, closing, reading, and writing files.

• File streams can handle different file types such as text files and binary files.

• File system functions like file e...read more

Paging is a memory management technique used by operating systems to manage memory usage.

• Paging divides memory into fixed-size pages.

• Pages are stored in physical memory or on disk.

• When a process needs a page, it is loaded into physical memory.

• If there is no space in physical memory, a page is swapped out to disk.

• Paging allows for efficient use of memory and prevents processes from accessing memory they shouldn't.

• Exampl...read more

Types of file systems in OS include FAT, NTFS, HFS+, ext2/3/4, and APFS.

• FAT (File Allocation Table) is a simple file system used by older versions of Windows.

• NTFS (New Technology File System) is a more advanced file system used by newer versions of Windows.

• HFS+ (Hierarchical File System Plus) is used by Apple's macOS.

• ext2/3/4 are file systems used by Linux.

• APFS (Apple File System) is a newer file system used by Apple's

Developed an innovative system for monitoring and optimizing energy consumption in college buildings.

• Designed and implemented a smart energy management system using IoT devices.

• Developed algorithms to analyze energy usage patterns and identify areas for improvement.

• Created a user-friendly web interface for real-time monitoring and control of energy consumption.

• Collaborated with college administration to implement energ...read more

A thread is a lightweight unit of execution within a process, while a process is an instance of a program in execution.

• A process has its own memory space, while threads share the same memory space within a process.

• Processes are independent and isolated from each other, while threads share resources and can communicate with each other more easily.

• Creating a new process is more resource-intensive than creating a new thre...read more

Cookies in PHP are small text files that are stored on the user's computer to track and store information about the user's activities on a website.

• Cookies are used to remember user preferences and login information.

• They can be set, retrieved, and deleted using PHP's setcookie(), $_COOKIE, and setcookie() functions respectively.

• Cookies can have an expiration date and can be set to be accessible only over a secure connec...read more

Protocols are a set of rules that govern the communication between devices or systems.

• Protocols define the format, timing, sequencing, and error checking of messages exchanged between devices.

• Different types of protocols include network protocols (TCP/IP, HTTP, FTP), communication protocols (RS-232, USB, Bluetooth), and application protocols (SMTP, POP3, IMAP).

• Network protocols govern the communication between devices ...read more

Experience certainty refers to the level of confidence and assurance gained through repeated exposure to a particular task or situation.

• Experience certainty is achieved through repetition and familiarity.

• It allows individuals to perform tasks with greater ease and efficiency.

• For example, a pilot who has flown the same route multiple times will have a higher level of experience certainty compared to a pilot who is flyin...read more

I am a system engineer with expertise in designing and implementing complex IT infrastructures.

• I have a Bachelor's degree in Computer Science.

• I have 5 years of experience in system engineering.

• I am proficient in various operating systems such as Windows, Linux, and Unix.

• I have strong knowledge of networking protocols and security measures.

• I have successfully implemented virtualization technologies like VMware and Hyper...read more

I am actively involved in various extra-curricular activities.

• I participate in community service projects, such as volunteering at local shelters and organizing donation drives.

• I am a member of a sports team and regularly participate in tournaments and matches.

• I enjoy playing musical instruments and often perform at school events and talent shows.

• I am part of a coding club where we collaborate on projects and participa...read more

A system engineer is responsible for designing, implementing, and maintaining computer systems and networks.

• System engineers design and implement computer systems and networks

• They ensure the systems are secure and reliable

• They troubleshoot and resolve technical issues

• They work with other IT professionals to ensure the systems meet business needs

• Examples of systems they may work on include servers, databases, and cloud

I am a versatile freelancer with expertise in system engineering.

• I have experience in designing and implementing complex systems.

• I am skilled in troubleshooting and resolving technical issues.

• I have worked on various projects involving network infrastructure and server management.

• I am proficient in programming languages like Python and Java.

• I have a strong understanding of cloud computing and virtualization technologie...read more

In my free time, I enjoy writing articles and blog posts on various technical topics.

• I write articles and blog posts on system engineering best practices.

• I write about emerging technologies and their impact on system engineering.

• I contribute to technical forums and discussion boards by sharing my knowledge and experiences.

• I occasionally write tutorials and guides to help others in the field.

• I am currently working on a ...read more

I felt like an achiever when I successfully implemented a complex system upgrade.

• Successfully implemented a complex system upgrade

• Received positive feedback from colleagues and superiors

• Achieved desired results within the given timeframe

• Overcame challenges and obstacles during the implementation process

TCS bond agreement is a contract signed by employees to work for a certain period of time with the company.

• TCS bond agreement is a legal contract between TCS and its employees.

• Employees sign the bond agreement to work for a certain period of time with the company.

• The bond period can range from 1 to 2 years depending on the role and level of the employee.

• If an employee wishes to leave the company before the bond period ...read more

I have worked on multiple projects during my BE and TE.

• During my BE, I worked on a project to develop a web-based attendance management system for a college.

• In this project, I was responsible for designing the database schema, developing the front-end using HTML, CSS, and JavaScript, and implementing the back-end using PHP and MySQL.

• The system allowed students to mark their attendance online and generated reports for f...read more

My favorite subject is computer networks.

• I enjoy studying the different protocols and technologies used in computer networks.

• I find it fascinating how data is transmitted and routed across networks.

• I have hands-on experience in configuring and troubleshooting network devices.

• I have worked on projects involving network design and optimization.

• I am familiar with concepts like IP addressing, subnetting, and VLANs.

Program for division and multiplication in 8085 processor.

• For multiplication, use MUL instruction with 8-bit operand.

• For division, use DIV instruction with 8-bit dividend and 16-bit divisor.

• Store the result in appropriate registers or memory locations.

• Example: To multiply two numbers in registers B and C, use MUL C instruction.

• Example: To divide two numbers in registers A and B, use DIV B instruction.