C S Solutions Angular Frontend Developer Interview Questions and Answers

Stream program and spring boot, jpa etc

Q1. Stream api program
Ans. 
Stream API is a powerful tool in Java for processing collections of objects.
• Stream API provides a way to perform operations on collections in a functional style.

• It supports operations like filter, map, reduce, and collect.

• Example: List<String> names = Arrays.asList("Alice", "Bob", "Charlie"); names.stream().filter(name -> name.startsWith("A")).forEach(System.out::println);
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Stream program and microservice architecture

Q1. Oops, java8, algorithm
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Q1. How does consumer, producer work in kafka
Ans. 
Consumers read data from topics, while producers write data to topics in Kafka.
• Consumers subscribe to topics to read messages from them

• Producers publish messages to topics for consumers to read

• Consumers can be part of a consumer group to scale out consumption

• Producers can specify key for messages to control partitioning
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Q1. What are pipes in angular?
Ans. 
Pipes in Angular are used to transform data in templates.
• Pipes are used to format data before displaying it in the view.

• They can be used to filter, sort, or manipulate data in various ways.

• Examples include currency, date, uppercase, and lowercase pipes.
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Q1. Who do you test your django apps?
Ans. 
I test my Django apps using automated testing tools and manual testing methods.
• I use Django's built-in testing framework to write unit tests for individual components of the app.

• I also use tools like pytest and Selenium for automated testing of the app's functionality.

• I perform manual testing to ensure the app works as expected in real-world scenarios.

• I use tools like Django Debug Toolbar to identify and fix any perfor
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Q2. Count the number of vowels in a string.
Ans. 
Count the number of vowels in a given string.
• Iterate through each character in the string and check if it is a vowel (a, e, i, o, u).

• Increment a counter for each vowel found.

• Return the total count of vowels in the string.
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Q1. Shallow copy and deep copy
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Q2. What is Pure component
Ans. 
A Pure component is a component in React that does not have any state or lifecycle methods, resulting in improved performance.
• Pure components are used to prevent unnecessary re-renders in React applications.

• Pure components implement shouldComponentUpdate method with shallow comparison of props and state.

• Examples of Pure components include functional components and class components that extend PureComponent class.
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Q1. Given the start and end times of the meetings, how can you determine if you are able to attend all of them?
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Basic .net concept question and 2 leetcode medium question.
1) find a target element within a rotated search array (complexity < 0(N))

Q1. How would you handle scenerios where if you have 1000 request comming and you can handle 10 request at max
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