Wissen Technology Senior Backend Developer Interview Questions and Answers

Q1. Simple technical interview
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Q2. Difference between html and html5, flexbox,
Ans. 
HTML is the standard markup language for creating web pages, while HTML5 is the latest version with new features. Flexbox is a layout model for designing responsive websites.
• HTML is the standard markup language used to create web pages.

• HTML5 is the latest version of HTML with new features like <video>, <audio>, and <canvas> elements.

• Flexbox is a layout model in CSS that allows for easier alignment and...read more
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Q3. What is dependency injection
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Q1. What is bootstrap,
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Bootstrap is a popular front-end framework for building responsive websites and web applications.
• Bootstrap provides pre-designed HTML, CSS, and JavaScript components that can be easily customized and integrated into a project.

• It includes a responsive grid system for creating layouts that adapt to different screen sizes.

• Bootstrap also offers built-in support for popular web development tools like Sass and jQuery.

• Example...read more
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Q2. Service,dependency injection, flexbod, box model,component
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Q1. Basic oops concept
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Q2. SQL related questions
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Q3. Difference between stored procedure and function
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Stored procedures are precompiled SQL queries stored in the database, while functions are reusable blocks of code that return a value.
• Stored procedures are stored in the database and can perform multiple operations, while functions are standalone blocks of code.

• Functions return a value, while stored procedures do not necessarily have to return a value.

• Stored procedures can be called explicitly, while functions can be u...read more
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Q1. Performance related questions
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Q1. Java-8 Coding questions
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Q2. Spring boot Questions
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Basic aptitude reasoning

Core js angular react

Q1. Expectations regarding the job and salary
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Q2. Performance and location based questioning
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Q1. Explain dependency injection, indexes in sql, SOLID principles.
Ans. 
Dependency injection is a design pattern where dependencies are injected into a class rather than created within the class itself.
• Dependency injection helps in achieving loose coupling between classes.

• It allows for easier testing and maintenance of code.

• Example: Constructor injection, setter injection, and interface injection are common types of dependency injection.

• Indexes in SQL are used to improve the performance of...read more
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Q1. UI policy& Data Policy
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Q2. What is UI policy? Importance of Reverse False?
Ans. 
UI policy is a set of rules that control the behavior of fields on a form in ServiceNow. Reverse False is important for ensuring that the policy is applied correctly.
• UI policy in ServiceNow is used to dynamically change the behavior of fields on a form based on certain conditions.

• It can be used to make fields mandatory, read-only, visible, or hidden based on user input or other criteria.

• Reverse False is important in UI...read more
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Client Scripts, Service Catalog

Good, need good knowledge in aptitude

Q1. Need basic of sql and DBMS knowledge to crack this round
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Q1. Integration between icerties
Ans. 
Integration between icerties involves connecting different software systems to enable seamless data exchange.
• Use APIs to establish communication between different icerties

• Implement data mapping to ensure compatibility between systems

• Consider security measures to protect sensitive information during integration
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Q2. Contact lifecycle management
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