Maveric Systems QA Engineer Interview Questions, Process, and Tips for Experienced

Q1. Java program to split alpha-numeric values without using the split method
Ans. 
Split alpha-numeric values in Java without using split method
• Iterate through each character in the input string

• Check if the character is a digit or a letter using Character.isDigit() and Character.isLetter() methods

• Create separate strings for digits and letters and store them in an array
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Q2. SQL query to add a new column to a table and the column value should have a default value and never be null
Ans. 
Use ALTER TABLE statement to add a new column with a default value and set it to NOT NULL
• Use ALTER TABLE table_name ADD column_name data_type DEFAULT default_value NOT NULL;

• Example: ALTER TABLE employees ADD hire_date DATE DEFAULT '2022-01-01' NOT NULL;
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Q1. Related to technical skill
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Q2. High level technical interview
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Q1. Tell me about yourself and project
Ans. 
I am a QA Engineer with 5 years of experience working on various projects, including testing web applications and mobile apps.
• Experienced in manual and automated testing

• Proficient in using tools like Selenium and Jira

• Worked on projects involving e-commerce websites and healthcare applications
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Q2. What is regression testing
Ans. 
Regression testing is the process of retesting a software application to ensure that new code changes have not adversely affected existing features.
• Regression testing is performed after code changes to verify that the existing functionality still works correctly.

• It helps in identifying any defects introduced by new code changes.

• Automated testing tools are often used to streamline the regression testing process.

• Regressi...read more
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Q3. What native app and web app
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A native app is an application developed specifically for a particular platform or device, while a web app is accessed through a web browser.
• Native apps are installed directly on the device and can access hardware features.

• Web apps are accessed through a browser and do not require installation.

• Examples of native apps include Instagram and Spotify, while examples of web apps include Google Docs and Trello.
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Q1. Salary discussion
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Q1. They will ask other questions other than what you have mention in you CV
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Q2. They will ask other questions other that what you have mentioned in your CV
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Q3. None................
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Q4. None..................
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Q5. None...................
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Q1. Testing and project related
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For QA must have knowladge on Selenium,java,maven,git and any ci/cd must.

Q1. Tell me about OOPs concept?
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Q2. Explain project structure?
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Q1. Diff types of testing
Ans. 
Different types of testing include unit testing, integration testing, system testing, acceptance testing, and regression testing.
• Unit testing: Testing individual components or modules of the software.

• Integration testing: Testing how different modules work together.

• System testing: Testing the entire system as a whole.

• Acceptance testing: Testing to ensure the software meets the requirements of the end users.

• Regression te...read more
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Q1. About the current project roles & responsibilites
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Q2. What protocols do you know
Ans. 
I am familiar with protocols such as HTTP, HTTPS, TCP/IP, FTP, SMTP, and SNMP.
• HTTP - Hypertext Transfer Protocol used for web communication

• HTTPS - Secure version of HTTP using SSL/TLS encryption

• TCP/IP - Transmission Control Protocol/Internet Protocol for network communication

• FTP - File Transfer Protocol for transferring files over a network

• SMTP - Simple Mail Transfer Protocol for sending emails

• SNMP - Simple Network Man
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Q3. How MQTT publish and subscribe works draw the flow of it
Ans. 
MQTT publish and subscribe work by clients connecting to a broker, where publishers send messages to topics and subscribers receive messages from those topics.
• Clients connect to a broker to publish or subscribe to topics

• Publishers send messages to specific topics on the broker

• Subscribers receive messages from topics they are subscribed to

• Broker manages the routing of messages between publishers and subscribers
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Q1. Self introduction
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Q2. How good you are on testing and few real based scenarios
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