TELUS Digital Reactjs Developer Interview Questions and Answers

Q1. What is Rabbit MQ?
Ans. 
RabbitMQ is a message broker software that implements the Advanced Message Queuing Protocol (AMQP).
• RabbitMQ allows different software systems to communicate by sending and receiving messages.

• It can be used to decouple different parts of a system, making it more scalable and resilient.

• RabbitMQ supports multiple messaging protocols, including AMQP, MQTT, and STOMP.
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Q2. What is LINQ in .net?
Ans. 
LINQ (Language Integrated Query) is a feature in .NET that allows querying data from different data sources using a uniform syntax.
• LINQ allows querying data from collections, databases, XML, and more.

• It provides a set of standard query operators like Where, Select, OrderBy, etc.

• LINQ queries are written in C# or VB.NET and are type-safe.

• Example: var result = from num in numbers where num % 2 == 0 select num;
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Q1. Hibernate, MicroService static keywords,super key words
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Q2. SQL group by query
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Q3. Hibernate annotations
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Q4. Singleton class
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Q5. Controller and rest controller
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A person ability in a particular skills or field of knowledge

Q1. Tell me about your self ?
Ans. 
I am a passionate Java Developer with 5 years of experience in developing web applications and strong knowledge of Java technologies.
• 5 years of experience in Java development

• Proficient in developing web applications

• Strong knowledge of Java technologies
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Q2. What are strength ?
Ans. 
Strengths are qualities or attributes that make an individual or team effective in achieving goals.
• Physical strength: Ability to lift heavy objects or perform physically demanding tasks.

• Emotional strength: Resilience in facing challenges and managing stress.

• Intellectual strength: Problem-solving skills and critical thinking abilities.

• Interpersonal strength: Effective communication and teamwork skills.

• Adaptability: Abil...read more
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Q3. Why are interested in this job?
Ans. 
I am passionate about Java development and excited about the opportunity to work on challenging projects.
• I have a strong background in Java programming and enjoy solving complex problems.

• I am eager to contribute my skills and expertise to a dynamic team.

• I am interested in this job because it offers the chance to work on cutting-edge technologies and make a real impact.
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Q4. Tell me about your studying
Ans. 
I have a Bachelor's degree in Computer Science and have taken various online courses to further my knowledge in Java development.
• Bachelor's degree in Computer Science

• Online courses in Java development

• Continuous learning and staying updated with latest technologies
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Q1. Union and union all difference
Ans. 
UNION combines the results of two or more SELECT statements, while UNION ALL includes duplicates.
• UNION removes duplicate rows, while UNION ALL retains all rows including duplicates

• UNION is slower than UNION ALL as it performs a distinct operation

• UNION requires the same number of columns in the SELECT statements, while UNION ALL does not have this restriction
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Q2. What is generic and non-generic collections

Ans. 

Generic collections allow storing any type of data, while non-generic collections are type-specific.

• Generic collections can store any type of data, such as List or Dictionary.

• Non-generic collections are type-specific, like ArrayList or HashTable.

• Generic collections provide type safety and better performance compared to non-generic collections.

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