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20+ Bristlecone Interview Questions and Answers

Updated 9 Jan 2025

Q1. Write a query to get hierarchical data from a table where parent child relationship is maintained by I'd and parent I'd in same table.

Ans.

Query to retrieve hierarchical data from a table with parent-child relationship maintained by ID and parent ID.

  • Use a self-join to join the table with itself based on the parent ID and ID columns.

  • Use a recursive CTE (Common Table Expression) to traverse the hierarchy and retrieve all levels of data.

  • Order the results by the hierarchy level to display the data in a hierarchical structure.

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Q2. What is indexing and how how can help in database?

Ans.

Indexing is a technique to improve database performance by creating a quick lookup of data.

  • Indexing helps in faster retrieval of data from a database.

  • It reduces the time taken to search for data in a large database.

  • Indexes can be created on one or more columns of a table.

  • Examples of indexes include primary key, unique key, and clustered index.

  • Indexing can also help in optimizing query performance.

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Q3. What is Spring Profile, Spring Validations?

Ans.

Spring Profile is used to configure different environments. Spring Validations is used to validate data.

  • Spring Profile allows developers to define different configurations for different environments

  • It helps in managing properties like database credentials, logging levels, etc.

  • Spring Validations provide a way to validate data before processing it

  • It helps in ensuring that the data is in the correct format and meets certain criteria

  • For example, @NotNull annotation can be used to...read more

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Q4. Wht is Java and wht u can you do with that?

Ans.

Java is a high-level programming language used for developing applications and software.

  • Java is platform-independent and can run on any operating system.

  • It is object-oriented and has a vast library of pre-built classes and functions.

  • Java is used for developing web applications, mobile applications, desktop applications, and games.

  • It is also used for developing enterprise-level applications and software.

  • Java is widely used in the development of Android applications.

  • Some popula...read more

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Q5. how is shipping point determined?

Ans.

Shipping point is determined based on various factors such as shipping conditions, loading group, and plant.

  • Shipping point is determined in SAP SD module during the creation of a delivery document.

  • It is determined based on the shipping conditions defined in the customer master data.

  • The loading group assigned to the material in the material master data also plays a role in determining the shipping point.

  • The plant from which the goods are being shipped is another factor in dete...read more

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Q6. Write a Program for Merge Sort Algo

Ans.

Program for Merge Sort Algo

  • Divide the array into two halves

  • Recursively sort the two halves

  • Merge the sorted halves

  • Repeat until the entire array is sorted

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Q7. What are the steps to perform testing using the Postman user interface?

Ans.

Testing using Postman UI involves creating requests, setting up environments, running tests, and viewing results.

  • Create a new request by entering the request URL

  • Add parameters, headers, and body to the request

  • Set up environments to manage variables and configurations

  • Run tests to validate the response data

  • View test results and response data in the Postman UI

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Q8. Do you have any experience with SAP?

Ans.

Yes, I have 5 years of experience working with SAP in various projects.

  • Implemented SAP modules such as SAP FI/CO, SAP SD, and SAP MM

  • Customized SAP solutions to meet client requirements

  • Provided training and support to end users

  • Worked on SAP upgrades and system integrations

  • Experience with SAP S/4HANA implementation

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Q9. How to setup GRC to satellite system connection

Ans.

Setting up GRC to satellite system connection involves configuring network settings and establishing secure communication.

  • Configure network settings on both GRC and satellite system

  • Establish secure communication protocols such as VPN or SSH

  • Ensure proper authentication and authorization mechanisms are in place

  • Test the connection to ensure data transfer is successful

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Q10. what are scripting challenges you have come across

Ans.

Scripting challenges include handling dynamic elements, synchronization issues, and complex scenarios.

  • Handling dynamic elements such as changing IDs or classes

  • Synchronization issues with asynchronous operations

  • Dealing with complex scenarios like multiple pop-ups or nested frames

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Q11. Config parameters important for access control

Ans.

Config parameters play a crucial role in access control by defining who can access what resources.

  • Role-based access control (RBAC) parameters

  • User permissions and privileges

  • Access control lists (ACLs)

  • Authentication mechanisms

  • Authorization rules

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Q12. what is Group Condition?

Ans.

Group Condition is a pricing procedure that allows multiple conditions to be grouped together for calculation.

  • Group Condition is used in SAP SD pricing procedure.

  • It allows multiple conditions to be grouped together for calculation.

  • Group Condition is used to simplify pricing calculation.

  • It helps in reducing the number of condition types used in pricing procedure.

  • Example: A group condition can be created for discounts on a specific product category.

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Q13. what's is clouser in javascript

Ans.

A closure is a function that has access to variables in its outer (enclosing) scope.

  • A closure is created when a function is defined inside another function

  • The inner function has access to the outer function's variables and parameters

  • Closures can be used to create private variables and methods

  • Example: function outer() { var x = 10; function inner() { console.log(x); } return inner; } var closure = outer(); closure(); // Output: 10

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Q14. what is block system in load runner?

Ans.

Block system in LoadRunner is a feature that allows users to divide a script into logical blocks for better organization and management.

  • Block system helps in organizing script logic into smaller, manageable sections

  • Each block can contain multiple actions or transactions

  • Blocks can be easily rearranged, copied, or deleted within the script

  • Useful for debugging and troubleshooting specific sections of the script

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Q15. Explain how you do EAM setup

Ans.

EAM setup involves defining asset types, hierarchies, attributes, and relationships for effective management.

  • Start by identifying all asset types within the organization

  • Define asset hierarchies to show relationships between assets

  • Establish attributes for each asset type to track relevant information

  • Set up relationships between assets to understand dependencies and connections

  • Utilize EAM software to input and manage all setup data

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Q16. what is event loop in nodejs

Ans.

Event loop is a mechanism that allows Node.js to perform non-blocking I/O operations.

  • Event loop is responsible for handling asynchronous callbacks in Node.js.

  • It continuously checks the event queue for any new events and executes them one by one.

  • It allows Node.js to handle multiple requests simultaneously without blocking the main thread.

  • Event loop is implemented using libuv library in Node.js.

  • Event loop can be visualized as a loop that runs indefinitely until there are no mor...read more

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Q17. write to print even and odd by thread

Ans.

Print even and odd numbers using two threads

  • Create two threads, one for printing even numbers and one for printing odd numbers

  • Use synchronization mechanisms like mutex or semaphore to ensure proper ordering of numbers

  • Example: Thread 1 prints even numbers (2, 4, 6, ...) and Thread 2 prints odd numbers (1, 3, 5, ...)

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Q18. write to print string in C style array

Ans.

Use a loop to print each character of the string in C style array format

  • Declare an array of characters with the string length + 1 for null terminator

  • Use a loop to copy each character of the string into the array

  • Add a null terminator at the end of the array to signify the end of the string

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Q19. write to print string by passing char*

Ans.

Use a loop to print each character of the string passed as a char* parameter.

  • Use a for loop to iterate through each character of the char* parameter.

  • Print each character using printf or cout.

  • Ensure to handle the null terminator at the end of the string.

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Q20. Your technical and mangerial skills

Ans.

I have strong technical skills in various programming languages and frameworks, as well as experience managing teams and projects.

  • Proficient in Java, Python, and JavaScript

  • Experience with Agile methodology and project management tools such as JIRA

  • Managed a team of developers to successfully deliver a complex software project on time and within budget

  • Implemented best practices for code quality and testing, resulting in a significant reduction in bugs and improved user experien...read more

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Q21. What is difference between incidents & Service requests

Ans.

Incidents are unplanned interruptions to services, while service requests are planned and routine tasks.

  • Incidents are unexpected and disrupt services

  • Service requests are planned and routine tasks

  • Examples of incidents include system crashes or network outages

  • Examples of service requests include password resets or software installations

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Q22. q. how to rotate linked list

Ans.

To rotate a linked list, we need to change the pointers of the nodes accordingly.

  • Create a function that takes the head of the linked list and the number of positions to rotate.

  • Find the new tail of the linked list after rotating.

  • Update the pointers to rotate the linked list.

  • Handle cases where the number of rotations is greater than the length of the linked list.

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Q23. architecture for project

Ans.

The architecture for the project should be scalable, modular, and well-documented.

  • Use a microservices architecture to break down the project into smaller, independent services.

  • Implement a RESTful API for communication between services.

  • Utilize containerization with Docker for easy deployment and scalability.

  • Consider using a message broker like Kafka for asynchronous communication between services.

  • Document the architecture and design decisions thoroughly to aid in future develo...read more

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Q24. how to you tackle bottlenecks

Ans.

Identify bottlenecks, prioritize them based on impact, and implement solutions to improve efficiency.

  • Identify bottlenecks by analyzing performance metrics and conducting root cause analysis

  • Prioritize bottlenecks based on their impact on the overall system

  • Implement solutions such as optimizing code, improving infrastructure, or reallocating resources

  • Monitor the impact of the solutions and adjust as needed

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Q25. xpath writting on practice site

Ans.

XPath is a way to navigate through elements in XML or HTML documents.

  • XPath uses path expressions to select nodes or content in an XML or HTML document.

  • It can be used to locate elements based on their attributes, text content, or position in the document.

  • XPath expressions can be written using various functions and operators to filter and select specific elements.

  • For example, to select all

    elements with a class attribute of 'example', the XPath expression would be '//div[@clas...read more
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Q26. ORM Advantages

Ans.

ORM provides advantages such as increased productivity, improved maintainability, and reduced code duplication.

  • ORM eliminates the need for manual SQL queries, reducing development time and increasing productivity.

  • ORM provides a higher level of abstraction, making it easier to maintain and modify code.

  • ORM reduces code duplication by providing reusable code for common database operations.

  • ORM allows for easier database migration and management.

  • Examples of popular ORM frameworks ...read more

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Q27. TreeMap vs HashMap

Ans.

TreeMap and HashMap are both implementations of the Map interface in Java.

  • HashMap is faster than TreeMap for most operations, but TreeMap maintains elements in a sorted order.

  • HashMap allows null keys and values, while TreeMap does not allow null keys but allows null values.

  • HashMap uses hashing to store and retrieve elements, while TreeMap uses a red-black tree.

  • HashMap is generally preferred for faster operations, while TreeMap is preferred when elements need to be sorted.

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Q28. Project explanation in detail.

Ans.

Developed a predictive model to forecast sales for a retail company.

  • Collected and cleaned historical sales data

  • Performed exploratory data analysis to identify trends and patterns

  • Developed and trained a machine learning model using regression techniques

  • Evaluated model performance and fine-tuned hyperparameters

  • Deployed the model in a web application for sales forecasting

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Q29. types of joins in sql

Ans.

Types of joins in SQL include inner join, left join, right join, and full outer join.

  • Inner join: returns rows when there is a 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 either table

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