IBM Application Developer Interview Questions, Process, and Tips

Online test was there. It was just basic questions.

Q1. This round was not that much easy not so difficult.
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Q2. Difference between CASE and Decode
Ans. 
CASE and Decode are SQL functions used to manipulate data. CASE is more flexible while Decode is simpler.
• CASE allows for multiple conditions and expressions while Decode only allows for one condition and multiple values

• CASE can be used in any SQL statement while Decode is specific to Oracle databases

• CASE is more readable and easier to maintain than Decode

• Example: CASE WHEN condition1 THEN result1 WHEN condition2 THEN r...read more
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Q3. How to get distinct data without using distinct keyword
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To get distinct data without using distinct keyword, use GROUP BY clause.
• Use GROUP BY clause with the column name to group the data by that column.

• Use aggregate functions like COUNT, SUM, AVG, etc. to get the desired result.

• Example: SELECT column_name FROM table_name GROUP BY column_name;

• Example: SELECT column_name, COUNT(*) FROM table_name GROUP BY column_name;
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Q1. Asked about overall experience. About the role and responsibilities.
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Q1. Explain role and responsibilities in your profile
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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
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Q3. Difference between cmd and entry point
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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
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Q4. How to stop container
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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
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Q1. Explain what are the tool you have been working. mostly open-source software
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Q2. Azure monitor tools and Azure Network issue question
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2 simple codes were asked.

Q1. Explain microservices architecture in current project
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Q2. Java 8 features
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Q1. Question related to current project.
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Q1. Data base, ACID principles
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Q2. Streams, rest api
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