Tecstub Senior QA Lead Interview Questions and Answers

Q1. What is Apigee?
Ans. 
Apigee is a platform for developing and managing APIs, enabling secure and scalable connections between applications and services.
• API Management: Apigee provides tools to create, manage, and secure APIs.

• Analytics: It offers insights into API usage and performance, helping businesses optimize their services.

• Security: Apigee includes features like OAuth, API keys, and traffic management to protect APIs.

• Developer Portal: ...read more
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Q2. Explain about Apigee policies?
Ans. 
Apigee policies are pre-defined rules that manage API behavior, security, and traffic control in API management.
• Traffic Management: Policies like Rate Limiting control the number of requests a user can make in a given timeframe.

• Security: OAuth and API Key validation policies ensure that only authorized users can access the API.

• Transformation: Policies such as JSON to XML conversion allow for data format changes between...read more
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Setup a cluster and find the bottleneck of performance.

Q1. Ways to deal with latency in Cassandra
Ans. 
Ways to optimize latency in Cassandra
• Use appropriate data modeling to reduce the number of queries needed

• Optimize queries by using appropriate indexes and clustering keys

• Tune the Cassandra configuration settings for better performance

• Use caching mechanisms like Memcached or Redis to reduce latency

• Consider using partitioning strategies to distribute data evenly across nodes
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Q1. Coding question for count occurence of string
Ans. 
Count occurrences of a specific string in an array of strings efficiently.
• Use a loop to iterate through the array and a counter to track occurrences.

• Example: For array ['apple', 'banana', 'apple'], count 'apple' returns 2.

• Consider using a hash map for larger datasets to improve performance.

• Example: {'apple': 2, 'banana': 1} for the previous array.
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Q2. Java basic question with exception handling
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Q1. Microservice question
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Q2. Spring batch working flow
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Q1. Make a login form to print username and password using react.
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Q2. What is the difference between flexbox and grid?
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Q1. Describe oops concept.
Ans. 
OOPs concept stands for Object-Oriented Programming, which is a programming paradigm based on the concept of objects.
• OOPs focuses on creating objects that contain both data and methods to manipulate that data.

• It emphasizes concepts like inheritance, encapsulation, polymorphism, and abstraction.

• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation restricts access to certain comp...read more
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Asked about JavaScript Topics
1. Promise
2. Clousure
3. Hoisting.

Create an Application Routes are protected by different roles in ReactJS

Q1. What you want to join this company
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Q2. Where do you see yourself in 5 years
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Q3. What is most important to company good culture or handsome package or both and why
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Q1. Project learning
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Q2. Coding skills projects
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