30+ Technology Specialist Interview Questions and Answers

Design a Machine Learning algorithm to prioritize lift waiting time

• Collect data on factors affecting lift waiting time (e.g. time of day, building occupancy, lift capacity)

• Preprocess and clean the data to remove outliers and missing values

• Select a suitable Machine Learning model such as Random Forest or Gradient Boosting

• Train the model using the collected data to predict waiting times

• Implement the model in the lift system to prioritize waiting times efficiently

Program to find common numbers in two arraylists using Java 8

• Use Java 8 streams to filter out common elements between two arraylists

• Convert arraylists to streams, use filter() and collect() methods

• Use distinct() method to avoid duplicate common numbers

Improving performance in Oracle Forms involves optimizing queries, tuning the application, and utilizing caching mechanisms.

• Optimize SQL queries by using indexes, reducing unnecessary joins, and limiting the amount of data retrieved

• Tune the application by minimizing network round trips, reducing server-side processing, and optimizing client-side rendering

• Utilize caching mechanisms such as Oracle Forms built-in caching, browser caching, and server-side caching to reduce data r...read more

Kernel panic is a critical error that occurs when the kernel of an operating system detects an internal error that it cannot recover from.

• Check for hardware issues such as faulty RAM or hard drive

• Update or reinstall drivers

• Check for any recent software or system updates

• Try booting in safe mode

• If all else fails, reinstall the operating system

Tableau blending combines data from different data sources while cross join combines all rows from two tables.

• Tableau blending is used to combine data from different data sources in a single view.

• Cross join combines all rows from two tables, creating a Cartesian product.

• Tableau blending allows for linking data sources on common fields.

• Cross join does not require any common fields for joining tables.

• Example: Tableau blending can be used to combine sales data from one database ...read more

Agile framework is a project management approach that emphasizes flexibility, collaboration, and customer satisfaction.

• Agile is iterative and incremental, with frequent feedback loops

• It values individuals and interactions over processes and tools

• It prioritizes working software over comprehensive documentation

• It embraces change and welcomes customer involvement throughout the project

• Examples of Agile frameworks include Scrum, Kanban, and Extreme Programming (XP)

Tata Group is an Indian multinational conglomerate company with businesses in various sectors such as automotive, steel, telecommunications, and more.

• Tata Group is one of the largest conglomerates in India.

• It has businesses in sectors like automotive, steel, telecommunications, and more.

• Some of its well-known companies include Tata Motors, Tata Steel, and Tata Consultancy Services.

Patching servers involves identifying vulnerabilities, testing patches, scheduling downtime, and applying patches.

• Identify vulnerabilities through regular scans and assessments

• Test patches in a non-production environment before applying to production servers

• Schedule downtime during off-peak hours to minimize impact on users

• Apply patches using automated tools or manual processes depending on the complexity of the patch

• Monitor servers after patching to ensure stability and func...read more

Android components are building blocks of an Android app, including activities, services, broadcast receivers, and content providers.

• Activities: UI components that represent a single screen with a user interface.

• Services: Components that run in the background to perform long-running operations.

• Broadcast Receivers: Components that respond to system-wide broadcast announcements.

• Content Providers: Components that manage a shared set of app data.

Android services are background processes that can run in the background even when the app is not in the foreground.

• Android services are used for long-running operations such as playing music, handling network transactions, or syncing data.

• They do not have a user interface and run independently of the app's lifecycle.

• Services can be started or bound to by other components in the app.

• They can be categorized as started services (run once and stop) or bound services (interact wi...read more

Design a secure and efficient file download and upload system.

• Implement secure authentication and authorization mechanisms to control access to files

• Use encryption to protect data during transmission and storage

• Utilize a user-friendly interface for easy file upload and download

• Consider implementing version control for files to track changes and updates

To pass report param, use the appropriate syntax and format specified by the reporting tool.

• Ensure the parameter name matches the report's parameter field

• Use the correct data type for the parameter value (e.g. string, number)

• Check for any required formatting or syntax specified by the reporting tool

• Test the report with different parameter values to ensure it functions correctly

Payment aggregation is the process of combining multiple payments from customers into a single merchant account.

• Allows businesses to accept payments on behalf of multiple merchants

• Reduces the need for each merchant to have their own merchant account

• Can simplify payment processing and reconciliation for businesses

• Examples: PayPal, Stripe Connect

Scripted pipelines are a way to create complex continuous delivery pipelines using a domain-specific language (DSL).

• Scripted pipelines are written in Groovy

• They allow for more flexibility and customization than Declarative pipelines

• They can be used to define complex build and deployment workflows

• Scripted pipelines can be version controlled and shared across teams

• Example: pipeline { agent any stages { stage('Build') { steps { sh 'mvn clean package' } } } }

Recently faced production issues include server downtime and software bugs.

• Server downtime due to hardware failure

• Software bugs causing crashes and data loss

• Integration issues with third-party systems

The low level design of Tic Tac Toe involves creating a game board, implementing player moves, and checking for a win condition.

• Create a 3x3 game board using a 2D array

• Implement logic for player moves and alternating turns

• Check for win conditions after each move

• Handle tie games and reset the board for a new game

To call reports, you can use a reporting tool or software to generate and access the desired reports.

• Use a reporting tool or software to generate reports

• Access reports by running queries or selecting specific parameters

• Schedule automated reports to be generated and sent at regular intervals

Triggers can take the form of events, conditions, or actions that initiate a response in a system or program.

• Triggers can be in the form of user actions, such as clicking a button or submitting a form.

• Triggers can also be based on time, such as scheduling a task to run at a specific time or interval.

• Triggers can be set based on specific conditions being met, such as a certain temperature being reached or a certain data value changing.

• Examples include email notifications being...read more

Post-trigger is an event or action that occurs after a specific trigger has been activated.

• Post-trigger is a term commonly used in technology and programming to describe events that happen after a specific trigger condition is met.

• For example, in a home automation system, a post-trigger event could be turning off the lights after a motion sensor detects no movement for a certain period of time.

• Post-trigger events are often used to automate processes and streamline workflows i...read more

Angular framework is used in the current project

• Angular framework is a popular choice for building web applications

• It follows the MVC (Model-View-Controller) architecture

• It provides features like two-way data binding and dependency injection

Tata Company has a strong global presence, diverse portfolio, and a history of innovation.

• Strong global presence with operations in over 100 countries

• Diverse portfolio spanning industries such as automotive, steel, IT services, and more

• History of innovation with products like Tata Nano, India's first affordable car

One disadvantage of a Tata company is its limited global presence compared to other multinational corporations.

• Limited global reach compared to competitors like Apple or Samsung

• May face challenges in expanding into new markets due to lack of brand recognition

• Potential difficulties in attracting top talent from around the world

• Less diversified revenue streams compared to larger multinational companies

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 'is-a' relationship

• Derived class can access the properties and methods of the base class

• Types of inheritance include single, multiple, multilevel, and hierarchical inheritance

Microservices design pattern is an architectural style that structures an application as a collection of loosely coupled services.

• Microservices break down a large application into smaller, independent services that can be developed, deployed, and scaled independently.

• Each microservice focuses on a specific business capability and communicates with other services through APIs.

• Microservices promote flexibility, scalability, and resilience in software development.

• Examples of com...read more

Fast Formula complexity refers to the level of difficulty in creating and maintaining fast formulas in Oracle applications.

• Fast Formulas can be simple or complex depending on the business requirements.

• Complex fast formulas may involve multiple conditions, calculations, and dependencies.

• Testing and debugging complex fast formulas can be time-consuming and challenging.

• Proper documentation and version control are essential for managing complex fast formulas.

• Examples of complex f...read more

Designing system algorithms involves creating efficient and effective code to solve specific problems.

• Understand the problem and requirements before designing algorithms

• Choose appropriate data structures and algorithms for the task

• Consider time and space complexity when designing algorithms

• Test and optimize the code for performance

• Examples: sorting algorithms like quicksort or searching algorithms like binary search

Fortigate VPN allows secure remote access to network resources based on user policies.

• Fortigate VPN provides secure remote access to network resources

• User policies can be set to control access to specific resources

• Policies can be based on user groups, IP addresses, and other criteria

• VPN can be configured to use different authentication methods such as LDAP, RADIUS, or local database

Azure Functions is a serverless compute service that lets you run event-triggered code without having to explicitly provision or manage infrastructure.

• Azure Functions allows you to write small pieces of code that run in response to events.

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

• You can easily integrate Azure Functions with other Azure services like Azure Storage, Azure Cosmos DB, etc.

• Azure Functions can be used for various purposes such as ...read more

Best practices for Triggers include limiting the use of triggers, avoiding complex logic, and testing thoroughly.

• Limit the use of triggers to avoid performance issues

• Avoid complex logic in triggers to maintain readability and ease of maintenance

• Test triggers thoroughly to ensure they function as expected

LOD stands for Level of Detail, which refers to different levels of detail in a 3D model or scene.

• LOD0: Lowest level of detail, typically used for objects far away from the viewer

• LOD1: Medium level of detail, used for objects closer to the viewer

• LOD2: Highest level of detail, used for objects closest to the viewer

• LOD can help optimize performance by displaying simpler models when they are far away and more detailed models when they are closer