100+ Grazitti Interactive Interview Questions and Answers

C# is a programming language developed by Microsoft for building a wide range of applications on the .NET framework.

• C# is widely used for developing desktop applications, web applications, mobile apps, games, and more.

• It is an object-oriented language with features like type safety, garbage collection, and scalability.

• C# is commonly used in conjunction with the .NET framework to create Windows applications.

• Examples of popular applications built with C# include Microsoft Offic...read more

MVC (Model-View-Controller) lifecycle is a process that describes how a web application is processed and rendered.

• The lifecycle starts with the user sending a request to the server.

• The server receives the request and sends it to the appropriate controller.

• The controller processes the request and interacts with the model to retrieve data.

• The controller then sends the data to the view for rendering.

• The view renders the data and sends it back to the user's browser.

• The user can t...read more

Machine learning algorithms are mathematical models that learn from data to make predictions or decisions without being explicitly programmed.

• Machine learning algorithms can be categorized into supervised, unsupervised, and reinforcement learning.

• Examples of machine learning algorithms include linear regression, decision trees, support vector machines, and neural networks.

• These algorithms use training data to learn patterns and relationships, which are then used to make predi...read more

Clustering is a technique of grouping similar objects together based on their characteristics. HA stands for High Availability.

• Clustering is used in various fields like data mining, image recognition, and machine learning.

• In IT, clustering is used to improve performance and availability of systems.

• High Availability (HA) refers to a system's ability to remain operational and accessible even in the event of hardware or software failures.

• HA is achieved through redundancy and fai...read more

IP subnetting is the process of dividing a network into smaller subnetworks for improved performance and security.

• IP subnetting helps in efficient utilization of IP addresses by dividing a network into smaller segments.

• It allows for better network management and organization by grouping devices based on their IP addresses.

• Subnet masks are used to determine which part of an IP address belongs to the network and which part belongs to the host.

• For example, in a network with IP a...read more

Function returns a value, while procedure does not.

• Function returns a value, while procedure does not

• Functions are called in expressions, procedures are called as standalone statements

• Functions can be used in SELECT statements in SQL, procedures cannot

• Example: Function to calculate the square of a number, Procedure to print a message

Expectations for CLC involve clear communication, timely responses, and meeting project deadlines.

• Clear communication with stakeholders to ensure understanding of project requirements

• Timely responses to inquiries and issues that arise during the project

• Meeting project deadlines to ensure successful completion of tasks

• Providing regular updates on progress and any potential roadblocks

• Collaborating effectively with team members to achieve project goals

OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.

• OOPs is a way of organizing and designing code around objects

• Objects have properties and methods that can be accessed and manipulated

• Example: A car object can have properties like color, make, and model, and methods like start and stop

My expected CTC is negotiable based on the job requirements and market standards.

• I am open to discussing the salary package based on the job responsibilities and company policies.

• I have researched the market standards for similar roles and have a range in mind.

• I am looking for a fair compensation package that aligns with my skills and experience.

• I am willing to consider other benefits such as health insurance, retirement plans, and paid time off.

• I am confident that we can com...read more

Components can be reused by creating libraries, templates, or frameworks for future projects.

• Create a library of commonly used components that can be easily integrated into new projects

• Develop templates that can be customized and reused for similar projects

• Build frameworks that provide a structure for developing new components and can be reused across projects

Pipes in Angular are used for transforming data in templates.

• Pipes are used to format data before displaying it in the view.

• They can be used to filter, sort, or transform data.

• Examples include date pipe, uppercase pipe, and currency pipe.

Strategies to optimize costs in AWS include rightsizing instances, using reserved instances, leveraging spot instances, monitoring usage, and automating resource management.

• Rightsizing instances to match workload requirements and avoid over-provisioning.

• Using reserved instances for predictable workloads to save costs compared to on-demand pricing.

• Leveraging spot instances for non-critical workloads at a lower cost, but with potential interruptions.

• Monitoring usage and optimiz...read more

String is immutable due to security, thread safety, and performance reasons.

• Immutable strings prevent accidental modification of data, enhancing security.

• Immutable strings are thread-safe, as multiple threads can access them without interference.

• Immutable strings allow for more efficient memory management and optimization.

• Example: String str = "Hello"; str.concat(" World"); // This does not modify the original string.

Handling a project involves planning, organizing, executing, and monitoring tasks to achieve project goals.

• Define project scope, objectives, and deliverables

• Create a project plan with timelines and milestones

• Assign tasks to team members and monitor progress

• Communicate regularly with stakeholders

• Manage risks and issues effectively

• Adapt to changes and adjust the plan as needed

Joins in SQL are used to combine rows from two or more tables based on a related column between them.

• Joins are used to retrieve data from multiple tables based on a related column between them

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column

SAP upgrade process involves planning, testing, and implementation to ensure smooth transition to new version.

• Planning phase includes assessing current system, identifying customizations, and creating upgrade strategy.

• Testing phase involves testing new version in sandbox environment, identifying and resolving issues.

• Implementation phase includes scheduling downtime, performing upgrade, and post-upgrade testing.

• Common issues faced during SAP upgrade include data migration erro...read more

Cloud computing is the delivery of on-demand computing services over the internet.

• Cloud computing allows users to access and use computing resources, such as servers, storage, and databases, without the need for physical infrastructure.

• It offers scalability, flexibility, and cost-effectiveness as resources can be easily scaled up or down based on demand.

• Examples of cloud services include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform.

A Citrix machine catalog is a collection of virtual machines that share the same base image and configuration.

• A machine catalog is used in Citrix Virtual Apps and Desktops to manage and deliver virtual desktops and applications to end users.

• It allows administrators to create and manage a group of virtual machines with similar characteristics.

• Machine catalogs can be based on different hypervisors, such as Citrix Hypervisor, Microsoft Hyper-V, or VMware ESXi.

• They can also be cr...read more

A delivery controller is a component in IT infrastructure that manages the distribution of resources and services to end users.

• A delivery controller acts as a central point of control for managing and directing the flow of data and applications.

• It ensures that resources are allocated efficiently and delivered to the appropriate users.

• Delivery controllers are commonly used in virtual desktop infrastructure (VDI) environments to deliver virtual desktops and applications to end ...read more

SQL is a standard language for managing databases, while PL/SQL is an extension of SQL used for procedural programming.

• SQL stands for Structured Query Language and is used for managing and manipulating relational databases.

• PL/SQL stands for Procedural Language/SQL and is an extension of SQL that adds procedural programming capabilities.

• SQL is used for querying data, inserting, updating, and deleting records in a database.

• PL/SQL allows for writing procedural code like loops, c...read more

Golden AMI is a pre-configured template of a virtual machine that is used as a starting point for creating new instances.

• Golden AMI helps in standardizing the configuration and setup of virtual machines.

• It includes the operating system, software packages, patches, and configurations.

• Examples of Golden AMIs include Amazon Machine Images (AMIs) in AWS or Azure Managed Images in Microsoft Azure.

Clustering is a technique of grouping similar data points together based on their characteristics.

• Clustering is used in various fields like data mining, image processing, and pattern recognition.

• It helps in identifying patterns and relationships in data.

• There are different types of clustering algorithms like K-means, hierarchical clustering, and density-based clustering.

• For example, in customer segmentation, clustering can be used to group customers based on their purchasing ...read more

A MAC address is a unique identifier assigned to a network interface controller for use as a network address in communications within a network segment.

• MAC stands for Media Access Control

• It is a 48-bit address

• It is used to identify devices on a network

• It is assigned by the manufacturer

• It is used in Ethernet and Wi-Fi networks

API calls are requests made to a server to perform specific actions or retrieve data.

• GET request to retrieve data from a server

• POST request to send data to a server

• PUT request to update existing data on a server

• DELETE request to remove data from a server

Spring MVC is a framework for building web applications in Java.

• Model-View-Controller design pattern is used

• DispatcherServlet handles incoming requests

• Controllers handle requests and return responses

• Views render the response to the user

External sharing can be enabled through settings in the IT system.

• Navigate to the settings or admin panel of the IT system

• Look for options related to sharing or permissions

• Enable external sharing by selecting the appropriate settings

• Consider setting restrictions or permissions for external users

• Test the external sharing functionality to ensure it works as expected

Framework structure refers to the organization and layout of a software framework.

• Framework structure defines the relationships between components and modules

• It provides a set of rules and guidelines for developers to follow

• Frameworks can have different structures such as layered, component-based, or event-driven

• Examples of popular frameworks include AngularJS, React, and Ruby on Rails

Agile methodology is an iterative approach to software development that emphasizes flexibility and collaboration.

• Agile values individuals and interactions over processes and tools

• It emphasizes working software over comprehensive documentation

• Agile methodology involves continuous feedback and adaptation

• Scrum, Kanban, and XP are popular Agile frameworks

• Agile methodology is used in software development, project management, and other fields

Pager object modal is a user interface component that displays content in a modal window with pagination controls.

• Pager object modal is used to display a large amount of content in a modal window with the ability to navigate through pages.

• It typically includes pagination controls such as 'Next', 'Previous', and page numbers.

• This component is commonly used in web applications to present information in a structured and organized manner.

A composite key is a combination of two or more columns that uniquely identifies a row in a database table.

• Composite keys are used to ensure data integrity and prevent duplicate records.

• They are commonly used in many-to-many relationships where a single record in one table can be associated with multiple records in another table.

• For example, a composite key of 'customer ID' and 'order ID' can be used to uniquely identify each order placed by a customer.

• Composite keys can also...read more

MapReduce is a programming model and processing technique used for large-scale data processing.

• MapReduce is a programming model for processing and generating large data sets.

• It involves two main functions - Map function for processing data and Reduce function for aggregating the results.

• MapReduce is commonly used in distributed computing environments like Hadoop.

• Example: Counting the frequency of words in a large text document using MapReduce.

Port number for https is 443 and for http is 80.

• Port number for https is 443

• Port number for http is 80

HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.

• HashMap internally uses an array of linked lists to store key-value pairs.

• When a key-value pair is added, the key is hashed to determine the index in the array where the pair will be stored.

• If multiple keys hash to the same index, a linked list is used to handle collisions.

• To retrieve a value, the key is hashed again to find the index and then the linked list is s...read more

Regression testing is the process of retesting a software application to ensure that new code changes have not adversely affected existing functionality.

• Regression testing is performed after code changes to verify that the existing features still work correctly.

• It helps in identifying any defects introduced by new code changes.

• Automated testing tools are often used for regression testing to save time and effort.

• Examples of regression testing tools include Selenium, JUnit, and...read more

ASP.Net framework is a web application framework developed by Microsoft.

• Developed by Microsoft

• Used for building web applications

• Supports various programming languages like C# and VB.NET

Design patterns are reusable solutions to common problems encountered in software design.

• Design patterns provide a template for solving recurring design problems in software development.

• They help in creating maintainable, scalable, and efficient code.

• Examples include Singleton, Factory, Observer, and Strategy patterns.

Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class.

• Allows for code reusability and promotes the concept of hierarchy

• Derived class inherits properties and behaviors from a base class

• Can have multiple levels of inheritance (e.g. grandparent, parent, child classes)

A pointer is a variable that stores the memory address of another variable.

• Pointers are used to indirectly access and manipulate data in memory.

• They are commonly used in programming languages like C and C++.

• Example: int *ptr; // declares a pointer variable ptr that can store the memory address of an integer

A function is a block of code that performs a specific task when called.

• Functions can take input parameters and return output values.

• Functions help in organizing code and making it reusable.

• Examples include functions to calculate the square root of a number or to sort an array.

Working methodology refers to the process or approach used to complete tasks and achieve goals.

• It involves defining goals and objectives

• Breaking down tasks into smaller steps

• Assigning responsibilities and timelines

• Regularly reviewing progress and making adjustments

• Examples include Agile, Waterfall, and Lean methodologies

Defect Life Cycle is the process of identifying, reporting, fixing, retesting, and closing software defects.

• Defect identification: Defects are identified through testing or user feedback.

• Defect reporting: Defects are reported in a defect tracking system with details like severity and priority.

• Defect fixing: Developers fix the reported defects based on the information provided.

• Defect retesting: Testers verify that the fixed defects are resolved.

• Defect closing: Once the defects...read more

SQL joins are used to combine rows from two or more tables based on a related column between them.

• Joins are used to retrieve data from multiple tables in a single query

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• INNER JOIN returns rows when there is at least one match in both tables

• LEFT JOIN returns all rows from the left table and the matched rows from the right table

• RIGHT JOIN returns all rows from the right table and the matched rows from the lef...read more

Lambda function is a small anonymous function that can take any number of arguments but can only have one expression.

• Lambda functions are often used in programming languages like Python to create small, throwaway functions.

• They are commonly used in functional programming to pass functions as arguments to higher-order functions.

• Lambda functions are concise and can be written in a single line of code.

• Example: lambda x: x*2 defines a lambda function that takes an argument x and ...read more

A component is a reusable and independent part of a system or software that performs a specific function.

• Components can be easily integrated into different systems or applications

• They help in modularizing the system and promoting reusability

• Examples include buttons, input fields, and dropdown menus in a user interface

Modules are independent units of software that can be used to build larger systems or applications.

• Modules help in organizing code into smaller, manageable units

• They can be reused across different parts of a system

• Modules can be easily updated or replaced without affecting the entire system

• Examples include JavaScript modules, Python modules, and software libraries

Yes, I am capable of error handling methods.

• I have experience in using try-catch blocks to handle errors in code.

• I am familiar with logging errors to a file or database for later analysis.

• I have worked with debugging tools like Visual Studio to identify and fix errors.

• I am comfortable working with error codes and messages to provide meaningful feedback to users.

OLAP is used for analyzing and reporting large volumes of data, while OLTP is used for transaction processing in real-time.

• OLAP stands for Online Analytical Processing, used for complex queries and data analysis.

• OLTP stands for Online Transaction Processing, used for real-time transaction processing.

• OLAP databases are optimized for read-heavy workloads, while OLTP databases are optimized for write-heavy workloads.

• OLAP databases typically have denormalized data structures for ...read more

RLS in PBI stands for Row-Level Security in Power BI, a feature that allows users to restrict access to data based on roles or permissions.

• RLS helps control access to data at the row level based on user roles or permissions

• It allows users to see only the data that is relevant to them

• RLS can be implemented using DAX expressions to define filters for each role

• For example, a sales manager may only see data related to their region, while a sales representative may only see their ...read more

SSRS stands for SQL Server Reporting Services, a server-based report generation software from Microsoft.

• SSRS is a part of Microsoft SQL Server services.

• It allows users to create, manage, and deploy reports to be accessed over the web.

• Reports can be in various formats like PDF, Excel, CSV, etc.

• SSRS can be integrated with other Microsoft products like SharePoint for better collaboration.

SSAS stands for SQL Server Analysis Services, a Microsoft tool used for creating and managing online analytical processing (OLAP) cubes.

• SSAS is a component of Microsoft SQL Server used for data analysis and business intelligence.

• It allows users to create multidimensional data models for analyzing large amounts of data.

• SSAS supports data mining capabilities for discovering patterns and trends in data.

• Examples of SSAS features include dimensions, measures, hierarchies, and KPIs...read more

Java OPPs concept refers to Object-Oriented Programming principles in Java.

• Java OPPs involves concepts like classes, objects, inheritance, polymorphism, and encapsulation.

• Classes are blueprints for objects, defining attributes and behaviors.

• Inheritance allows a class to inherit attributes and methods from another class.

• Polymorphism enables objects to be treated as instances of their parent class.

• Encapsulation involves bundling data and methods within a class to restrict acces...read more

ASP.NET MVC is a web application framework that follows the Model-View-Controller architectural pattern.

• Separation of concerns

• Routing system

• Support for multiple view engines

• Easy integration with client-side frameworks

• Built-in support for dependency injection

• Testability

• Extensibility

Loadrunner is a performance testing tool used to analyze and measure system performance under load.

• Loadrunner is used to simulate thousands of users accessing a software application at the same time.

• It helps in identifying performance bottlenecks and issues in the system.

• Loadrunner can generate real-life loads, identify and isolate performance issues, and assess system performance and capacity.

• It supports various protocols like HTTP, HTTPS, JDBC, etc.

• Loadrunner can be used fo...read more

BDD framework is a software development process that encourages collaboration between developers, QA, and non-technical stakeholders.

• BDD stands for Behavior Driven Development

• It focuses on defining the behavior of a system through examples in plain text

• Uses a common language (like Gherkin syntax) to describe the expected behavior of the system

• Helps in creating automated tests based on these behavior specifications

I will explain my end to end journey from my CV.

• Started with education and qualifications

• Moved on to work experience and key achievements

• Highlighted relevant skills and certifications

• Included personal interests and hobbies

• Ended with references and contact information

Current project flow involves gathering requirements, designing solutions, development, testing, and deployment.

• Gather requirements from stakeholders

• Design solutions based on requirements

• Develop the solution using appropriate technologies

• Test the solution for bugs and errors

• Deploy the solution for end users

MERGE query in SQL databricks combines INSERT, UPDATE, and DELETE operations into a single statement.

• MERGE statement is used to perform INSERT, UPDATE, and DELETE operations in a single query

• It is useful for synchronizing two tables by updating existing records, inserting new records, and deleting records that no longer exist

• Syntax: MERGE INTO target_table USING source_table ON condition WHEN MATCHED THEN UPDATE SET col1 = val1 WHEN NOT MATCHED THEN INSERT (col1, col2) VALUES...read more

Narrow transformation focuses on a single partition of data at a time, while wide transformation processes multiple partitions simultaneously.

• Narrow transformation is more efficient for small datasets, while wide transformation is better for large datasets.

• Examples of narrow transformations include map and filter operations, while wide transformations include groupByKey and reduceByKey.

• Wide transformations require shuffling of data across partitions, leading to potential perf...read more

WebApi uses HTTP protocol to communicate between client and server.

• WebApi is a framework for building HTTP services.

• It uses HTTP protocol to communicate between client and server.

• It supports various HTTP verbs like GET, POST, PUT, DELETE, etc.

• It can return data in various formats like JSON, XML, etc.

• It can be used to build RESTful APIs.

Java OOPs concepts include inheritance, encapsulation, polymorphism, and abstraction.

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

• Encapsulation hides the internal state of an object and only exposes necessary functionality.

• Polymorphism allows objects to be treated as instances of their parent class.

• Abstraction focuses on the essential characteristics of an object while hiding unnecessary details.

Annotations in Spring Boot are used to simplify the configuration and development of applications.

• Annotations are used to define the behavior of Spring components, such as controllers, services, and repositories.

• They help in reducing the amount of boilerplate code that needs to be written.

• Examples of annotations in Spring Boot include @RestController, @Service, @Repository, and @Autowired.

OOP concepts refer to the principles of Object-Oriented Programming, including encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation: Bundling data and methods that operate on the data into a single unit (object)

• Inheritance: Allowing a new class to inherit properties and behavior from an existing class

• Polymorphism: The ability for objects of different classes to respond to the same message in different ways

• Abstraction: Hiding the complex implementation detai...read more

A class is a blueprint for creating objects in object-oriented programming.

• A class defines the properties and behaviors that an object of that class will have.

• It encapsulates data and methods into a single unit.

• Objects are instances of a class, created using the class as a template.

• Classes promote code reusability and modularity.

• Example: A class 'Car' can have properties like 'color' and 'model', and methods like 'start' and 'stop'.

ML work in projects involves using algorithms to analyze data, make predictions, and automate decision-making.

• Identifying business problems that can be solved using ML

• Collecting and preprocessing data for training models

• Selecting appropriate algorithms and training models

• Evaluating model performance and making improvements

• Deploying models in production and monitoring their performance

Core Java refers to the basic components of the Java programming language.

• Core Java includes fundamental concepts such as data types, control structures, and object-oriented programming.

• It does not include advanced topics such as web development or enterprise programming.

• Examples of core Java classes include String, Integer, and Boolean.

• Core Java is used to develop standalone applications, command-line tools, and desktop applications.

JDK, JVM, and JRE are all related to Java development, but serve different purposes.

• JDK (Java Development Kit) is a software development kit used to develop Java applications.

• JVM (Java Virtual Machine) is an abstract machine that provides a runtime environment for Java bytecode to be executed.

• JRE (Java Runtime Environment) is a software package that provides libraries, Java Virtual Machine, and other components necessary for running Java applications.

Spring framework provides support for managing and configuring containers for dependency injection.

• Spring containers are responsible for instantiating, configuring, and managing beans.

• There are two main types of containers in Spring: BeanFactory and ApplicationContext.

• BeanFactory is the simplest container, providing basic support for DI and lifecycle management.

• ApplicationContext is a more advanced container, providing additional features like event propagation, international...read more

ArrayList is a resizable array implementation, while LinkedList is a doubly linked list implementation.

• ArrayList is faster for accessing elements by index, while LinkedList is faster for adding or removing elements in the middle of the list.

• ArrayList uses less memory overhead compared to LinkedList.

• LinkedList allows for constant-time insertions and deletions, while ArrayList requires shifting elements in the underlying array.

• Example: ArrayList arrList = new ArrayList<>(); Lin...read more

Polymorphism is the ability of an object to take on many forms.

• Polymorphism allows objects of different classes to be treated as if they are of the same class.

• It is achieved through method overriding and method overloading.

• Examples include function overloading in C++ and Java's method overriding.

• Polymorphism is a key concept in object-oriented programming.

API routing is the process of directing incoming API requests to the appropriate endpoint.

• API routing involves mapping incoming requests to the correct endpoint

• It can be done through URL patterns or middleware

• Examples include Express.js and Flask frameworks

• API routing is important for maintaining a scalable and organized API architecture

ASP.NET life cycle is a series of events that occur during the processing of a web request.

• ASP.NET life cycle includes stages like Initialization, Execution, and Disposal.

• During Initialization, the application domain is created, and the HttpApplication object is created.

• During Execution, the HttpApplication object handles the request and creates the HttpContext object.

• During Disposal, the resources used by the HttpApplication object are released.

• Developers can use events and ...read more

HANA architecture is a column-oriented, in-memory database that uses parallel processing to deliver high performance.

• HANA uses a distributed architecture with multiple nodes for processing data

• Data is stored in columns instead of rows for faster processing

• HANA uses in-memory computing to eliminate the need for disk-based storage

• Parallel processing allows for faster data retrieval and analysis

• HANA supports both OLAP and OLTP workloads

R3 is the third generation of SAP's enterprise software system.

• R3 stands for Real-time 3-tier architecture.

• It is a client-server architecture that allows for real-time processing of data.

• It includes modules for finance, logistics, human resources, and more.

• R3 was replaced by SAP ERP in 2004.

• SAP S/4HANA is the latest version of SAP's enterprise software system.

Attributes are characteristics or properties that describe an object or entity.

• Attributes provide information about the object they are associated with

• They can be used to classify, identify, or describe objects

• Examples include color, size, weight, and material

OOPs features include encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation: bundling of data and methods that operate on that data within a single unit

• Inheritance: ability of a class to inherit properties and methods from a parent class

• Polymorphism: ability of objects to take on multiple forms and behave differently in different situations

• Abstraction: hiding of complex implementation details and providing a simplified interface for users

Oops concepts in Java refer to Object-Oriented Programming principles like Inheritance, Polymorphism, Encapsulation, and Abstraction.

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

• Polymorphism allows objects to be treated as instances of their parent class.

• Encapsulation hides the internal state of an object and only allows access through methods.

• Abstraction focuses on the essential features of an object and hides the implementation details.

Azure DevOps is a cloud-based service for collaborating on code development, building, testing, and deployment.

• Integrated set of tools to manage the software development lifecycle

• Includes features like version control, build automation, testing, and release management

• Supports agile methodologies and continuous integration/continuous deployment (CI/CD)

• Formerly known as Visual Studio Team Services (VSTS) or Team Foundation Server (TFS)

An automation framework is a set of guidelines, best practices, and tools used for automated testing of software applications.

• Provides structure and guidelines for automated testing

• Helps in organizing test scripts and test data

• Supports reusability of code and components

• Integrates with test management tools for reporting and tracking

• Examples: Selenium WebDriver, TestNG, Cucumber

Selenium is a popular open-source tool used for automating web browsers.

• Selenium is used for automating web browsers to test web applications.

• It supports multiple programming languages like Java, Python, C#, etc.

• Selenium WebDriver is the most commonly used component for browser automation.

• Selenium IDE is a record and playback tool for creating automated tests.

• Selenium Grid allows for parallel test execution across different browsers and operating systems.

Capable test of error handling

• Test all possible error scenarios

• Ensure proper error messages are displayed

• Test for graceful handling of unexpected errors

• Test for error recovery and system stability

• Use automated testing tools to simulate errors

• Perform load testing to check for system capacity

• Test for security vulnerabilities that could lead to errors

Inner join query combines matching rows from two tables.

• Specify the tables to join after the FROM keyword.

• Use ON keyword to specify the join condition.

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column;

Agile framework was used in the project for iterative development and flexibility.

• Agile framework used for project management

• Iterative development approach

• Flexibility to adapt to changing requirements

OOPS Concepts are the principles of Object-Oriented Programming, including inheritance, encapsulation, polymorphism, and abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation details and showing only the necessary features.

Top function use refers to the most frequently used functions in a particular system or software.

• Identifying top function use helps in optimizing system performance.

• It can also help in identifying areas for improvement or further development.

• Examples of top function use may include login/authentication, data retrieval, and report generation.

Agile way of working refers to a flexible and iterative approach to project management.

• Agile emphasizes collaboration, adaptability, and continuous improvement.

• Teams work in short iterations called sprints to deliver working software frequently.

• Feedback is gathered regularly from stakeholders to make necessary adjustments.

• Scrum, Kanban, and Lean are popular Agile methodologies.

• Daily stand-up meetings, sprint planning, and retrospectives are common Agile practices.

Filtering using Java streams

• Use the filter() method to apply a predicate to each element in the stream

• Combine filter() with other stream operations like map() or collect()

• Example: List names = Arrays.asList("Alice", "Bob", "Charlie"); List filteredNames = names.stream().filter(name -> name.startsWith("A")).collect(Collectors.toList());

Different join query examples in SQL

• INNER JOIN: Returns rows when there is at least one match in both tables

• LEFT JOIN: Returns all rows from the left table and the matched rows from the right table

• RIGHT JOIN: Returns all rows from the right table and the matched rows from the left table

• FULL OUTER JOIN: Returns rows when there is a match in one of the tables

API is like a waiter who takes your order to the kitchen and brings back the food to you.

• API stands for Application Programming Interface

• It allows different software applications to communicate with each other

• API acts as a messenger between two applications

• API specifies how software components should interact

• Examples include Google Maps API, Twitter API, and Facebook API

Dry run in Ansible is a simulation of playbook execution without making any actual changes on the target hosts.

• Dry run can be performed using the --check flag in ansible-playbook command.

• It allows the user to see what changes would be made without actually applying them.

• Useful for testing playbooks before running them in production environment.

• Example: ansible-playbook playbook.yml --check

Frameworks in project help provide structure, guidelines, and reusable components for development.

• Frameworks help streamline development by providing pre-built components and libraries.

• They enforce best practices and standards, improving code quality and maintainability.

• Examples include React for front-end development, Spring for Java applications, and Django for Python web development.

Different waits refer to various types of waiting times in IT systems.

• Different waits in IT systems can include network latency, disk I/O wait, and CPU wait time.

• Network latency refers to the time it takes for data to travel from one point to another over a network.

• Disk I/O wait is the time a system spends waiting for data to be read from or written to a disk.

• CPU wait time is the time a CPU spends waiting for data to be processed or for other tasks to be completed.