Kellogg Brown and Root Application Developer Interview Questions and Answers

Q1. What is @SpringbootAnnotation and what is difference between @Controller and @RestController.
Ans. 
SpringBootAnnotation is used to enable Spring Boot features in a Java application. @Controller is used for MVC pattern, @RestController is used for RESTful web services.
• SpringBootAnnotation is used to enable Spring Boot features like auto-configuration, component scanning, etc.

• @Controller is used for MVC pattern to handle web requests and return a view, while @RestController is used for RESTful web services to return d...read more
Answered by AI
Add your answer
Q2. What is Stream API write the Stream API Code any code and lambda expression.
Ans. 
Stream API in Java provides a way to process collections of objects in a functional style.
• Stream API allows for easy manipulation of collections using functional programming concepts like map, filter, and reduce.

• Example: List names = Arrays.asList("Alice", "Bob", "Charlie"); names.stream().filter(name -> name.startsWith("A")).forEach(System.out::println);

• Lambda expressions can be used with Stream API to define behavio...read more
Answered by AI
Add your answer

Q1. Explain role and responsibilities in your profile
Add your answer
Q2. Explain Ansible architecture
Ans. 
Ansible architecture is based on a client-server model where the control machine communicates with managed nodes using SSH.
• Ansible control machine: where playbooks are written and executed

• Managed nodes: machines that are being managed by Ansible

• Inventory: list of managed nodes

• Playbooks: automation scripts written in YAML format

• Modules: reusable units of code that perform specific tasks on managed nodes
Answered by AI
Add your answer
Q3. Difference between cmd and entry point
Ans. 
Cmd is used to specify the default command to run when a container is started, while entry point is used to specify the executable that will run when the container starts.
• Cmd is optional and can be overridden at runtime, while entry point is required and cannot be overridden.

• Cmd is used to provide default arguments for the entry point command.

• Example: CMD ["python", "app.py"] - specifies the default command to run the ...read more
Answered by AI
Add your answer
Q4. How to stop container
Ans. 
To stop a container, use the 'docker stop' command followed by the container ID or name.
• Use 'docker ps' command to list all running containers

• Identify the container ID or name of the container you want to stop

• Run 'docker stop ' to stop the container
Answered by AI
Add your answer

Q1. Explain what are the tool you have been working. mostly open-source software
Add your answer
Q2. Azure monitor tools and Azure Network issue question
Add your answer

Q1. What is bussniess rule ?
Ans. 
A business rule is a specific guideline or constraint that dictates how a business operates or makes decisions.
• Business rules are typically defined by stakeholders or subject matter experts.

• They help ensure consistency, compliance, and efficiency in business processes.

• Examples include age restrictions for purchasing alcohol, pricing strategies, and approval processes for expenses.
Answered by AI
Add your answer
Q2. What is update set?
Ans. 
An update set is a group of changes that can be moved from one instance to another in ServiceNow.
• Update sets are used to transport customizations, such as new fields, tables, or scripts, between instances.

• They help in organizing changes and tracking what customizations are being moved.

• Update sets can be previewed, committed, and rolled back if needed.

• Example: Creating a new field in a development instance and moving it
Answered by AI
Add your answer

Q1. COBOL, DB2 - Restart logic, Cursor life cycle
Add your answer

Q1. What are the differences between a procedure and a function?
Add your answer
Q2. Write a query to find 3rd highest salary from each department
Add your answer
Q3. What is synonym.
Add your answer
Q4. What are the indexes you used ? Diff between bitmap and btree index
Add your answer

Q1. Boxing Unboxing
Add your answer
Q2. Abstract class and interface
Add your answer

2 simple codes were asked.

Q1. Explain microservices architecture in current project
Add your answer
Q2. Java 8 features
Add your answer

Q1. Question related to current project.
Add your answer

Q1. What is memorization
Ans. 
Memorization is the process of committing information to memory for later recall.
• Memorization involves encoding information into memory through repetition or association.

• It is often used in education to learn facts, formulas, or concepts.

• Techniques like mnemonics, visualization, and chunking can aid in memorization.

• Examples include memorizing multiplication tables, historical dates, or foreign language vocabulary.
Answered by AI
Add your answer
Q2. What is currying
Ans. 
Currying is a technique in functional programming where a function with multiple arguments is transformed into a sequence of functions, each taking a single argument.
• Currying helps in creating reusable functions and improving code readability.

• It allows partial application of functions, where some arguments are fixed and others are left to be provided later.

• Curried functions can be composed easily to create more complex...read more
Answered by AI
Add your answer