20+ TCS Interview Questions and Answers

A string is a sequence of characters. To make 'Zycus' string to 'Zycus Infotech' in Java, concatenate the two strings.

• Use the '+' operator to concatenate the two strings.

• Create a new string variable and assign the concatenated value to it.

• Example: String str1 = 'Zycus'; String str2 = ' Infotech'; String result = str1 + str2;

Method Overloading is creating multiple methods with the same name but different parameters. Method Overriding is creating a new implementation of an existing method in a subclass.

• Method Overloading is used to provide different ways to call the same method with different parameters.

• Method Overriding is used to provide a new implementation of an existing method in a subclass.

• Method Overloading is resolved at compile-time based on the number and type of arguments passed.

• Method ...read more

Static, super, and final are Java keywords used for different purposes.

• Static keyword is used to create class-level variables and methods.

• Super keyword is used to call the parent class constructor or method.

• Final keyword is used to create constants or prevent method or class overriding.

I would prioritize deliveries based on customer needs, communicate timelines clearly, and proactively address any delays.

• Prioritize deliveries based on customer urgency and importance

• Communicate clear timelines and expectations with customers

• Proactively address any delays by adjusting schedules or allocating additional resources

Random Access Memory

• RAM stands for Random Access Memory.

• It is a type of computer memory that can be accessed randomly.

• RAM is volatile memory, meaning it loses its data when the power is turned off.

• It is used to store data that is currently being used by the computer's operating system, applications, and processes.

• RAM allows for faster data access compared to other types of storage like hard drives or solid-state drives.

Java is a versatile programming language known for its platform independence and rich set of features.

• Platform independence: Java programs can run on any operating system or platform that has a Java Virtual Machine (JVM).

• Object-oriented: Java supports the principles of object-oriented programming, allowing for modular and reusable code.

• Garbage collection: Java has automatic memory management, freeing developers from manual memory deallocation.

• Exception handling: Java provides...read more

I would rate my coding skills as a 4 out of 5.

• I have a strong understanding of programming concepts and can write efficient code.

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

• I have experience working on complex projects and collaborating with teams.

• However, there is always room for improvement and learning new technologies.

• Overall, I am confident in my coding abilities and strive to continue growing as a developer.

Technical aspects in business development involve utilizing data analytics, CRM systems, market research, and digital marketing.

• Utilizing data analytics to analyze market trends and customer behavior

• Implementing CRM systems to manage customer relationships and sales pipelines

• Conducting market research to identify opportunities and threats in the industry

• Utilizing digital marketing strategies to reach target audiences and generate leads

Types of testing include unit testing, integration testing, system testing, and acceptance testing.

• Unit testing: Testing individual components or functions of the software.

• Integration testing: Testing the interaction between different components or modules.

• System testing: Testing the entire system as a whole.

• Acceptance testing: Testing the software against user requirements or business use cases.

An abstract class is a class that cannot be instantiated and is used as a base class for other classes.

• An abstract class can have abstract and non-abstract methods.

• Abstract methods have no implementation and must be implemented by the derived class.

• Non-abstract methods can have implementation and can be inherited by the derived class.

• An abstract class can have constructors and fields.

• An abstract class can be used to define a common interface for a group of related classes.

Static keyword is used to create class-level variables and methods that can be accessed without creating an instance of the class.

• Static keyword is used to define variables and methods that belong to the class itself, rather than an instance of the class.

• Static variables are shared among all instances of the class.

• Static methods can be called directly on the class without creating an object of the class.

• Final keyword is used to make a variable, method, or class unchangeable o...read more

DHCP stands for Dynamic Host Configuration Protocol. It is a network protocol that automatically assigns IP addresses to devices on a network.

• DHCP is used to manage and distribute IP addresses in a network

• It allows devices to obtain IP addresses dynamically instead of manually configuring them

• DHCP also provides other network configuration information like subnet mask, default gateway, and DNS server addresses

• MAC (Media Access Control) address is a unique identifier assigned t...read more

Test cases to login into myntra and order white shirt

• Verify login functionality with valid credentials

• Verify login functionality with invalid credentials

• Verify search functionality for white shirt

• Verify adding white shirt to cart

• Verify placing order for white shirt

The technical approach for a problem involves defining the problem, gathering data, selecting algorithms, training models, evaluating performance, and iterating.

• Define the problem statement and objectives clearly

• Gather relevant data and preprocess it for analysis

• Select appropriate algorithms and techniques based on the problem

• Train machine learning models using the data

• Evaluate model performance using metrics like accuracy, precision, recall

• Iterate on the model by tuning hype...read more

I have extensive knowledge and experience in sales, including prospecting, lead generation, negotiation, and closing deals.

• Strong understanding of sales techniques and strategies

• Experience in prospecting and lead generation

• Skilled in negotiation and closing deals

• Familiarity with CRM systems and sales tools

• Ability to build and maintain client relationships

I have extensive experience in handling customer relationships, resolving issues, and ensuring customer satisfaction.

• Managed customer inquiries and complaints effectively

• Built strong relationships with clients through regular communication

• Resolved customer issues promptly and professionally

• Ensured customer satisfaction by meeting their needs and expectations

• Implemented feedback from customers to improve products and services

SVM stands for Support Vector Machine, a supervised machine learning algorithm used for classification and regression tasks.

• SVM finds the hyperplane that best separates different classes in the feature space

• It can handle both linear and non-linear data by using different kernel functions

• SVM is widely used in image classification, text classification, and bioinformatics

Procurement tools are software applications used to manage the procurement process.

• Procurement tools automate and streamline the procurement process

• They help with tasks such as supplier management, purchase order creation, and invoice processing

• Examples of procurement tools include SAP Ariba, Coupa, and Oracle Procurement Cloud

Hoisting is a behavior in JavaScript where variable and function declarations are moved to the top of their containing scope during compilation.

• Variable declarations are hoisted to the top of their scope, but not their assignments.

• Function declarations are fully hoisted, meaning they can be called before they are declared.

• Hoisting can lead to unexpected behavior if not understood properly.

Function currying is a technique in functional programming where a function with multiple arguments is transformed into a sequence of nested functions, each taking a single argument.

• Currying allows partial application of a function, where some of the arguments are fixed and the rest are left to be supplied later.

• It helps in creating reusable functions and improving code readability.

• Example: const add = (a) => (b) => a + b; const add5 = add(5); console.log(add5(3)); // Output:...read more

OOPS (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.

• OOPS focuses on creating objects that interact with each other to solve problems

• It involves concepts like classes, objects, inheritance, polymorphism, and encapsulation

• Example: Inheritance allows a class to inherit properties and behavior from another class

I have extensive implementation experience in various industries.

• Managed end-to-end implementation of ERP system for a manufacturing company

• Led implementation of CRM system for a healthcare organization

• Implemented project management software for a construction company

• Experience in training end-users and providing post-implementation support

A constructor is a special type of method that is automatically called when an object is created.

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

• They are used to initialize the object's state.

• Constructors do not have a return type.

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

Kubernetes is a container orchestration platform that consists of various components.

• Kubelet - agent that runs on each node in the cluster and ensures containers are running

• Kube-proxy - network proxy that maintains network rules on nodes

• Kubernetes API server - central management point for the cluster

• etcd - distributed key-value store for cluster data

• Kubernetes Controller Manager - manages different controllers that regulate the state of the cluster