Optum Global Solutions Sdet Interview Questions and Answers

Q1. Questions on Spring Boot, Microservices and Java
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Q1. Collections,List set diff,basic coding
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Q2. Cucumber basics
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Q3. Java interface Framework explanation
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Q1. What is Hard assert
Ans. 
Hard assert is a type of assertion in test automation that stops the test execution immediately when a failure occurs.
• Hard assert is used to validate the expected outcome of a test case

• If the assertion fails, the test execution is halted and marked as failed

• It is commonly used in automated test scripts to ensure the correctness of the application under test
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Q2. What is soft assert
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Soft assert is a way to continue the execution of a test case even after an assertion failure.
• Soft assert does not stop the execution of the test case when an assertion fails.

• It is useful when you want to log the failure but continue with the remaining test steps.

• Soft assert is commonly used in test automation frameworks like TestNG in Java.
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Q1. Questions on switching
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Q2. Packet flow in routers, osi model , etc
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Packet flow in routers involves data transmission through different layers of the OSI model.
• Packet flow starts at the network layer where packets are routed based on IP addresses.

• Packets then move to the data link layer where MAC addresses are used for communication.

• Finally, packets are transmitted physically through the network interface.

• OSI model consists of 7 layers: Physical, Data Link, Network, Transport, Session,
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Good and easy, guesstimate and puzzles

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Q1. Database question
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Q2. Inner join, constraint
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Q1. Tell me about yourself
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Q2. What are your strengths and weeaknesses
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Write python code to compare filese

Add very long numbers integers.

Q1. System Design. Design central logging system.
Ans. 
Design a central logging system for efficient monitoring and troubleshooting.
• Use a centralized server to collect logs from all systems

• Implement log aggregation tools like ELK stack or Splunk

• Set up alerts for critical errors or anomalies

• Ensure secure access controls for log data

• Consider scalability and storage requirements
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Q2. Central logging system
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Q3. Ratelimit apis not system design
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Ratelimiting APIs is a crucial aspect of ensuring system stability and preventing abuse.
• Implement rate limiting to restrict the number of API calls a user can make within a specific time frame.

• Use tokens or counters to track and enforce rate limits.

• Consider using a distributed cache or database to store rate limit data for scalability.

• Monitor and adjust rate limits based on usage patterns and system performance.

• Provide...read more
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