Johnson Controls QA Lead Interview Questions and Answers

Q1. CI/ CD Pipeline
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Q2. Agile methodlogies
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Q1. Expected salary
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Q2. Ready to work in Hybdrid model
Ans. 
Yes, I am ready to work in a hybrid model.
• I have experience working in both remote and on-site environments.

• I am comfortable using collaboration tools like Slack, Zoom, and Jira.

• I am adaptable and can easily switch between working from home and in the office.
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Q1. Basic situation handelling questions
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Q1. Abstract class vs interface
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Abstract class is a class that can have both abstract and non-abstract methods, while an interface is a blueprint for a class that only contains abstract methods.
• Abstract class can have constructor while interface cannot.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract class can have access modifiers for its members, while interface cannot.

• Interfaces are used to achieve mu...read more
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Q2. String programs
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Q1. How to use j meter for perfomance testing & crud operation
Ans. 
JMeter is a tool used for performance testing and CRUD operations.
• Install and open JMeter

• Create a Test Plan

• Add Thread Group and configure the number of users

• Add HTTP Request Sampler for CRUD operations

• Configure the HTTP Request Sampler with the appropriate method (GET, POST, PUT, DELETE)

• Add Listeners to view and analyze the test results

• Run the test and analyze the performance metrics
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Q1. Postman details, what are variable ?
Ans. 
Variables in Postman are placeholders that can be used to store and reuse values in requests and scripts.
• Variables in Postman are denoted by enclosing them in double curly braces like {{variable_name}}

• Variables can be defined at different scopes such as global, environment, and local

• Variables can be used to store values like API keys, tokens, and dynamic data

• Variables can be dynamically updated using scripts or pre-req
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Q1. SQL in depth Different types of join
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Different types of SQL joins 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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