UST Senior Software Engineer Interview Questions and Answers

Q1. Singleton class
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Q2. Circuit breaker
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Q1. Explain STLC procedure for test
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STLC (Software Testing Life Cycle) is a systematic process for testing software applications.
• STLC involves planning, designing, executing, and reporting tests.

• Phases of STLC include requirement analysis, test planning, test design, test execution, and test closure.

• Each phase has specific activities and deliverables to ensure thorough testing of the software.

• STLC helps in identifying defects early in the development cyc...read more
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Q2. Explain testing frame work
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Testing framework is a set of guidelines, tools, and processes used to automate and standardize the testing of software applications.
• Testing framework provides a structure for organizing test cases and executing them.

• It includes tools for test automation, such as Selenium for web applications or JUnit for Java.

• Frameworks like TestNG or PyTest offer features like test parameterization, grouping, and reporting.

• Frameworks...read more
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Q3. Explain selenium tech nology
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Selenium is a popular open-source automation testing tool used for web application testing.
• Selenium is used for automating web browsers.

• It supports multiple programming languages like Java, Python, C#, etc.

• Selenium WebDriver is the most commonly used component for writing automation scripts.

• Selenium Grid allows for parallel test execution across different browsers and operating systems.
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Q1. Java 8 features
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Q2. Streams, functional interface, Lambda examples
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Q3. Spring/ Springboot uses
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Spring/Spring Boot is a popular Java framework for building enterprise applications.
• Spring is a lightweight framework for building Java applications

• Spring Boot is an extension of the Spring framework that simplifies the setup and configuration of Spring applications

• Spring provides features like dependency injection, aspect-oriented programming, and more

• Spring Boot includes embedded servers like Tomcat, Jetty, etc. for ...read more
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Q4. Annotations used for making an API
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Annotations are used to provide metadata about classes, methods, or fields in an API.
• Annotations can be used to provide information about how a method should be handled, such as whether it is deprecated or should be ignored by a compiler.

• Annotations can also be used to provide information about how a class should be serialized or deserialized, such as specifying the format of JSON data.

• Examples of annotations include @...read more
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Q5. Difference between RestController and Controller annotations
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RestController is used for RESTful web services while Controller is used for general web requests.
• RestController is a specialization of Controller annotation in Spring framework.

• RestController is used to create RESTful web services that return JSON or XML data.

• Controller is used for handling general web requests and returning views (HTML).

• RestController is typically used for APIs while Controller is used for traditiona...read more
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Q6. Custom Exception Handling
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Q1. About Java 8 , Database
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Q1. Deep JAVA 8 , 11 . Microservices, SpringBoot
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In 1st coding test they give 3 Simple questions

Q1. Difference between procedures and functions
Ans. 
Procedures do not return a value, while functions return a value.
• Procedures are used to perform a specific task, while functions are used to calculate and return a value.

• Functions can be called from within expressions, while procedures cannot.

• Procedures can have input and output parameters, while functions can only have input parameters.

• Example: Procedure to print a message vs Function to calculate the square root of a...read more
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Q2. Indexing in Sql
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Indexing in SQL is a technique used to improve the performance of queries by creating indexes on columns in database tables.
• Indexes are created on columns in database tables to speed up data retrieval.

• Indexes can be created using CREATE INDEX statement in SQL.

• Indexes can be unique or non-unique, clustered or non-clustered.

• Examples: CREATE INDEX idx_lastname ON employees(last_name);
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Q1. Roles in Current company
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As a Senior Software Engineer, I lead projects, mentor junior developers, and ensure high-quality software delivery.
• Lead the design and architecture of software solutions, such as a microservices-based application for improved scalability.

• Mentor junior developers by conducting code reviews and providing guidance on best practices, resulting in a 20% reduction in bugs.

• Collaborate with cross-functional teams to gather re...read more
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Q2. Challenges faced in career?
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Q1. They asked about the projects
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Q2. Question based on the projects
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