50+ Senior Consultant Interview Questions and Answers for Freshers

Explaining Microservices architecture, communication, transactions, annotations, authentication, and API validation.

• Our project follows a Microservices architecture where each service is independently deployable and scalable.

• Services communicate with each other using RESTful APIs and message brokers like Kafka.

• We use distributed transactions and compensating transactions to manage transactions and handle failure scenarios.

• Some of the Spring Boot Microservices annotations we u...read more

Javascript is a single-threaded language, but it can handle asynchronous operations through callbacks and promises.

• Javascript is single-threaded, meaning it can only execute one task at a time.

• However, it can handle asynchronous operations by using callbacks, promises, and async/await.

• Backend calls in Javascript are typically made using asynchronous functions, allowing the program to continue executing other tasks while waiting for the response.

• For example, when making an HTT...read more

SQL query to find the 2nd highest salary employee in each department using common table expressions or subqueries.

• Use a Common Table Expression (CTE) or subquery to rank salaries within each department.

• Utilize the ROW_NUMBER() or RANK() function to assign ranks to salaries.

• Filter the results to get only the employees with the 2nd highest salary.

• Example SQL: SELECT name FROM (SELECT name, salary, DENSE_RANK() OVER (PARTITION BY department ORDER BY salary DESC) AS rank FROM emp...read more

useEffect Hook is a built-in hook in React that allows you to perform side effects in functional components.

• useEffect Hook is used to handle side effects in functional components, such as fetching data, subscribing to events, or manipulating the DOM.

• It takes two arguments: a function that represents the side effect, and an optional dependency array.

• The function passed to useEffect will be executed after every render, unless the dependency array is provided.

• The dependency arra...read more

I would explain the value and benefits of our services and offer alternative options.

• Explain the value and benefits of our services

• Offer alternative options such as payment plans or discounts

• Emphasize the quality and expertise of our team

• Politely decline if necessary

npm is the most popular package manager for Node.js and JavaScript.

• npm (Node Package Manager) is the default package manager for Node.js and JavaScript.

• Yarn is an alternative package manager that offers faster and more reliable dependency management.

• pnpm is another package manager that uses a unique approach of hard-linking dependencies to save disk space.

• Bower is a package manager specifically designed for front-end web development.

• NPM Enterprise is a paid package manager wi...read more

React hooks are functions that allow you to use state and other React features in functional components.

• useState() - for managing state in functional components

• useEffect() - for performing side effects in functional components

• useContext() - for accessing context in functional components

• useReducer() - for managing complex state and actions in functional components

• useCallback() - for memoizing functions in functional components

• useMemo() - for memoizing values in functional comp...read more

I can provide technical expertise to optimize plant operations and support business goals.

• Implementing new technologies to improve efficiency and reduce costs

• Troubleshooting technical issues to minimize downtime

• Training plant staff on new equipment and processes

• Collaborating with cross-functional teams to drive continuous improvement

• Analyzing data to identify areas for optimization and growth

I have extensive experience with Microsoft tools, enhancing productivity and collaboration in various projects.

• Proficient in Microsoft Excel for data analysis, utilizing pivot tables and advanced formulas to generate insights.

• Experienced in Microsoft PowerPoint for creating impactful presentations, incorporating multimedia elements to engage audiences.

• Utilized Microsoft Teams for effective communication and collaboration in remote work settings, managing projects and team dis...read more

To control incoming traffic via BGP, use route maps and prefix lists. Troubleshoot routing issues by checking BGP neighbor relationships and route advertisements.

• Create a prefix list to filter incoming routes based on their network address

• Create a route map to apply the prefix list and set policies for accepted routes

• Check BGP neighbor relationships to ensure they are established and functioning properly

• Check route advertisements to ensure they are being sent and received cor...read more

Java 8 Stream API enables functional-style operations on collections, enhancing code readability and efficiency.

• Streams allow for operations like filter, map, and reduce on collections. Example: list.stream().filter(x -> x > 10).collect(Collectors.toList());

• Streams can be parallelized for performance improvements. Example: list.parallelStream().map(x -> x * 2).collect(Collectors.toList());

• The 'reduce' method can be used to aggregate values. Example: int sum = list.stream().re...read more

STO Process involves the creation, approval, and execution of stock transport orders to transfer goods between different plant locations within a company.

• STO Process starts with the creation of a stock transport order in the SAP system, specifying the sending and receiving plant locations, material, and quantity.

• The stock transport order is then approved by the relevant stakeholders, such as purchasing and logistics departments.

• Once approved, the goods are physically transfer...read more

To change a request in retrofit, you can modify the request parameters or body before making the API call.

• Create a new instance of the request interface with the desired changes

• Update the request parameters or body using setter methods

• Make the API call with the modified request instance

AEM architecture is based on OSGi framework and follows a modular approach.

• AEM uses Apache Sling framework for request processing and resource resolution.

• It has a content repository based on Apache Jackrabbit Oak.

• AEM also has a dispatcher module for caching and load balancing.

• It follows a component-based architecture where each component is a self-contained module.

• AEM also supports customization through templates, workflows, and APIs.

I prioritize tasks, set realistic deadlines, regularly track progress, and communicate effectively with team members to ensure timely completion.

• Prioritize tasks based on importance and urgency

• Set realistic deadlines taking into account potential delays

• Regularly track progress and adjust timelines as needed

• Communicate effectively with team members to ensure everyone is on the same page

• Use project management tools to help with time management

SSIS scenarios involve data integration, ETL processes, and handling complex workflows effectively.

• Use Data Flow Tasks to extract, transform, and load data efficiently.

• Implement error handling using event handlers to manage failures.

• Utilize variables and expressions for dynamic configurations.

• Example: Use a Lookup transformation to enrich data from a reference table.

• Schedule SSIS packages using SQL Server Agent for automation.

Put is used to create or update a resource, while patch is used to update a resource partially.

• Put is idempotent, meaning multiple identical requests will have the same effect as a single request

• Patch is not idempotent, as multiple identical requests may have different effects

• Put requires the client to send the entire updated resource, while patch only requires the client to send the specific changes

• Put is typically used to create a new resource or completely replace an exist...read more

Estimating story in Agile involves breaking down the story into smaller tasks and assigning story points based on complexity and effort.

• Break down the story into smaller tasks

• Assign story points based on complexity and effort

• Use a reference story to establish a baseline for estimation

• Involve the entire team in the estimation process

• Re-estimate stories as more information becomes available

OSI model is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system.

• OSI stands for Open Systems Interconnection.

• It has 7 layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer has a specific function and communicates with the adjacent layers.

• Example: Physical layer deals with the physical transmission of data, while the Application layer deals with user interface...read more

Pragma autonomous transaction is used in PL/SQL to create a subtransaction that is independent of the main transaction.

• Pragma autonomous transaction is used to create a subtransaction within a main transaction.

• The subtransaction operates independently of the main transaction and can commit or rollback changes without affecting the main transaction.

• It is commonly used to log information or perform auditing tasks without interfering with the main transaction.

• Example: PRAGMA AUT...read more

Automated payment program is a system that automatically processes payments to vendors based on predefined criteria.

• Automated payment programs streamline the payment process by eliminating manual intervention.

• Criteria for payment can include invoice amount, due date, vendor details, etc.

• Common examples of automated payment programs include SAP's Automatic Payment Program (APP) and Oracle's Payment Manager.

Cyber attacks can take many forms, but two common types are phishing and ransomware.

• Phishing involves tricking individuals into divulging sensitive information, such as passwords or credit card numbers, through fraudulent emails or websites.

• Ransomware is a type of malware that encrypts a victim's files and demands payment in exchange for the decryption key.

• Other types of cyber attacks include DDoS attacks, malware, and social engineering.

• DDoS attacks involve overwhelming a we...read more

A cursor is a database object used to retrieve and manipulate data in a database management system.

• A cursor allows for sequential processing of query results one row at a time.

• It can be used to update or delete specific rows in a result set.

• Cursors are commonly used in stored procedures and triggers.

• Example: DECLARE cursor_name CURSOR FOR SELECT column1, column2 FROM table_name;

Ansible playbook creation and execution

• Ansible is a tool used for automation and configuration management

• Playbooks are written in YAML format and define tasks to be executed

• Execution of playbooks can be done using the 'ansible-playbook' command

• Playbooks can be used for various tasks such as server provisioning, application deployment, etc.

I am proficient in Java with experience in developing various applications.

• I have been working with Java for over 5 years

• I have developed multiple applications using Java, including a web-based inventory management system

• I am familiar with various Java frameworks such as Spring and Hibernate

• I keep myself updated with the latest Java technologies and trends

Different launch modes of activity refer to various ways in which a project or product can be introduced to the market.

• Soft launch - releasing the product to a limited audience to gather feedback before full launch

• Grand launch - a large-scale event to create buzz and generate interest

• Online launch - introducing the product through digital channels such as social media and websites

• Stealth launch - quietly releasing the product without much fanfare to test market response

I have over 10 years of experience in the relevant sector, including project management and client relations.

• Managed multiple projects simultaneously

• Developed strong relationships with clients

• Implemented successful strategies to increase revenue

• Led a team of consultants to achieve project goals