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Brodersen Systems Interview Questions and Answers

Updated 5 Aug 2024

Q1. Tested cdk library in aws service

Ans.

Yes, I have tested the CDK library in AWS services.

  • I have used the AWS CDK library to create and deploy infrastructure as code.

  • I have tested the CDK library with various AWS services such as EC2, S3, Lambda, and API Gateway.

  • I have also written unit tests for the CDK constructs to ensure their functionality.

  • I am familiar with the AWS CDK documentation and best practices for using the library.

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Q2. What is interceptor and where using and how to add interceptor for only selected requests?

Ans.

Interceptors are middleware functions that can be used to intercept and modify HTTP requests and responses.

  • Interceptors can be used in Angular to modify requests before they are sent to the server or responses before they are delivered to the application.

  • To add an interceptor for only selected requests, you can create a custom interceptor class that implements the HttpInterceptor interface and then provide it in the HTTP_INTERCEPTORS multi-provider array.

  • You can then use cond...read more

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Q3. How to achieve Lazy loading

Ans.

Lazy loading is a technique used to defer loading of non-essential resources until they are needed.

  • Lazy loading can be achieved by using JavaScript to load resources only when they are in the viewport.

  • Implementing lazy loading can improve page load times and overall performance.

  • Popular libraries like Intersection Observer can be used to implement lazy loading in web applications.

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Q4. WAP to find missing sqeuential number

Ans.

The program should find the missing sequential number in an array of numbers.

  • Iterate through the array and check if the next number is present.

  • If the next number is not present, that number is the missing sequential number.

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Q5. Difference between Observation & promise

Ans.

Observation is the act of noticing or perceiving something, while a promise is a commitment to do or not do something in the future.

  • Observation involves noticing or perceiving something through the senses.

  • A promise is a commitment made by one person to another to do or not do something.

  • Observation is based on what is currently happening or existing, while a promise is based on future actions or behavior.

  • Observation is typically objective and factual, while a promise is subjec...read more

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Q6. What is a Composite Key?

Ans.

A composite key is a combination of two or more columns that uniquely identifies a record in a database table.

  • A composite key is used when a single column cannot uniquely identify a record.

  • It is created by combining two or more columns that have unique values.

  • It is commonly used in many-to-many relationships.

  • Example: A table that stores orders may use a composite key of order number and customer ID.

  • Example: A table that stores student grades may use a composite key of student...read more

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