Blackberrys Software Development Engineer 3 Interview Questions and Answers

Q1. Recreate the array's concat function.
Ans. 
Recreate the concat function for arrays of strings.
• Create a new array to store the concatenated strings.

• Loop through each element in the input arrays and add them to the new array.

• Return the new concatenated array.
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Q2. Getting a response from a promise.
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Create a react component to load an image from an HTTP request with error handling.

Maths reasoning English questions

Q1. Why likes spinning?
Ans. 
Spinning helps me relax, stay active, and improve my overall well-being.
• Spinning is a great form of cardiovascular exercise that helps improve heart health.

• It allows me to destress and clear my mind after a long day at work.

• Spinning helps me stay active and maintain a healthy lifestyle.

• I enjoy the sense of accomplishment and endorphin rush after a challenging spin class.
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Q2. What is carding function?
Ans. 
Carding function is a process of verifying the validity of credit or debit card information.
• Carding function is used to prevent fraudulent transactions.

• It involves checking the card number, expiration date, CVV code, and other details.

• If the information is valid, the transaction is approved.

• If the information is invalid or suspicious, the transaction is declined.

• Carding function is used by banks, payment processors, an
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Q1. Tell me about yourself
Ans. 
I am a passionate software developer with experience in building web applications using various technologies.
• Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular

• Proficient in backend development with Node.js and databases like MongoDB and MySQL

• Familiar with version control systems like Git and deployment tools like Heroku

• Strong problem-solving skills and ability ...read more
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Q2. Questions around automation
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Q1. Technical round
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Q1. Technical system design
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Q1. DAX functions used in power bi
Ans. 
DAX functions are used in Power BI for data analysis and calculations.
• DAX functions are used to create calculated columns, measures, and tables in Power BI.

• Common DAX functions include SUM, AVERAGE, COUNT, MAX, MIN, and CALCULATE.

• DAX functions can be used to perform complex calculations and manipulate data in Power BI reports.

• Examples of DAX functions include CALCULATE(SUM(Sales[Amount])), AVERAGE(Sales[Quantity]), and
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Q1. Spring Boot annotations related question
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Q2. Java 8 advantages
Ans. 
Java 8 introduced several new features and improvements, including lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow for more concise and readable code.

• Functional interfaces enable the use of lambda expressions.

• Streams provide a way to work with collections in a more functional style.

• Default methods allow interfaces to have method implementations.
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Q1. Questions on microservices
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Q2. Types of HTTP methods, what is idempotency in rest api
Ans. 
HTTP methods include GET, POST, PUT, DELETE, PATCH. Idempotency in REST API means multiple identical requests have the same effect as a single request.
• HTTP methods: GET, POST, PUT, DELETE, PATCH

• Idempotency in REST API: Multiple identical requests have the same effect as a single request

• Example: GET and PUT are idempotent as they do not change the state of the server with multiple identical requests
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Q1. Java 8 related programming
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Q2. Data Structures
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Q1. Techno Managerial around
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Good level of questiosn

Q1. Basic sql and python questions
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