XpressBees Senior Software Engineer Interview Questions and Answers

Q1. Explain advantages of Angular
Ans. 
Angular offers advantages such as two-way data binding, dependency injection, and modular architecture.
• Two-way data binding allows automatic synchronization of data between the model and the view, reducing the need for manual DOM manipulation.

• Dependency injection helps manage dependencies and promotes code reusability by allowing components to be easily injected with their dependencies.

• Modular architecture enables deve...read more
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Q2. Explain about ngmodel
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ngModel is a directive in AngularJS that binds the value of HTML controls to application data.
• ngModel is used for two-way data binding in AngularJS.

• It can be used with input, select, textarea, and custom form controls.

• Example:
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Q1. Java coding questions
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Q2. Core java and spring questions
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Q1. Salary expectation
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Q1. Explian oops concepts
Ans. 
Object-oriented programming concepts that focus on classes and objects for better code organization and reusability.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Ability of a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation det...read more
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Q2. Types of waits in selenium
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Types of waits in Selenium include implicit, explicit, and fluent waits.
• Implicit wait: Waits for a certain amount of time before throwing a NoSuchElementException.

• Explicit wait: Waits for a certain condition to occur before proceeding further in the code.

• Fluent wait: Waits for a condition to be true with a specified frequency of checking.

• Example: driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
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Q1. Salary dsicussion
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Q2. Previous company details
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Q1. Virtual is what type
Ans. 
Virtual is a type of function in C++
• Virtual functions are used in C++ to achieve polymorphism

• They are declared in a base class and overridden in derived classes

• Example: virtual void display() = 0;
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Q2. What is static keyword
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The static keyword in programming is used to declare variables, methods, or classes that belong to the class itself rather than instances of the class.
• Static variables retain their values across all instances of a class.

• Static methods can be called without creating an instance of the class.

• Static classes cannot be instantiated and are used for grouping related methods and variables.

• Example: 'static int count = 0;' decl
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Q1. Why use FastAPI
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Aptitude test was provided for 45 mins

Q1. OOPS, virtual, inheritance
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Q1. Performance tuning
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Q2. Advance sql queries
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Q3. Subqueries in oracle
Ans. 
Subqueries in Oracle are queries nested within another query to retrieve data from multiple tables.
• Subqueries can be used in SELECT, INSERT, UPDATE, and DELETE statements.

• Subqueries can return a single value, a single row, multiple rows, or a table.

• Subqueries can be correlated or non-correlated, depending on whether they reference columns from the outer query.

• Example: SELECT * FROM employees WHERE department_id = (SELE...read more
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Q1. Reason for change
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Q2. Situational questions
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Q1. Tell me about yourself.
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Q1. What is functional and non functional requirements? What have you done in your project? Do you have any experience of handling a team?
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