Mirafra Technologies Interview Questions, Process, and Tips for Experienced

Q1. Reverse a string
Ans. 
Reverse a given string
• Use a loop to iterate through the characters of the string

• Append each character to a new string in reverse order

• Return the reversed string
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Q2. Basic programming questions
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Q1. What is angular lifecycle
Ans. 
Angular lifecycle refers to the sequence of events that occur from the creation of a component to its destruction.
• Angular components go through various lifecycle hooks such as ngOnInit, ngOnChanges, ngOnDestroy, etc.

• These hooks allow developers to perform actions at specific points in the component's lifecycle.

• For example, ngOnInit is used to initialize data in a component when it is first created.

• ngOnChanges is called...read more
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Q1. Why we should use auto keyword in local scope only
Ans. 
Using auto keyword in local scope only ensures type safety and avoids unintended side effects.
• Auto keyword deduces the type of the variable from its initializer expression.

• Using auto in local scope avoids unintended type conversions and promotes type safety.

• Auto keyword should not be used for function parameters or class members.

• Example: auto x = 10; // x is deduced as int

• Example: auto y = 3.14; // y is deduced as doub
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Q2. Why the default value of reg keyword is garbage value only
Ans. 
The default value of reg keyword is garbage value due to performance optimization.
• Garbage value is faster to assign than initializing to a specific value.

• Initializing to a specific value would require additional instructions and memory access.

• The value of reg keyword is expected to be overwritten before use.

• Garbage value can help in detecting uninitialized variables during testing.

• Example: int x; // x will have a garba
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Q1. Python Boosting Random Forest NLP Cnn
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Q1. Scenario based questions
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First Round was pretty basic and coding questions was medium in Python and React.
Then coding assignment from client and then Manager Round followed by HR Round

Q1. Explain Angular File structure
Ans. 
Angular file structure organizes code into modules, components, services, and assets.
• Angular projects have a src folder containing app and assets folders

• App folder contains modules, components, services, and other files

• Components have their own folder with HTML, CSS, and TypeScript files

• Services are placed in a separate folder for reusability

• Assets folder stores static files like images and fonts
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Q2. Explain auth guards
Ans. 
Auth guards are used in software development to control access to certain resources based on user authentication and authorization.
• Auth guards are used in web applications to restrict access to certain routes or resources based on user authentication.

• They are commonly used in frameworks like Angular and Laravel to protect routes from unauthorized access.

• Auth guards can check if a user is authenticated and authorized to...read more
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Q3. Explain Http client module
Ans. 
Http client module is a module in programming languages that allows communication with HTTP servers.
• Http client module is used to send requests to servers and receive responses.

• It can handle various HTTP methods like GET, POST, PUT, DELETE, etc.

• It can also handle headers, cookies, and other request/response parameters.

• Examples include HttpClient in Java, requests module in Python, axios in JavaScript.
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Q4. Explain Angular life cycle Hook
Ans. 
Angular life cycle hooks are methods that allow you to tap into specific points in a component's life cycle.
• ngOnChanges: Called when an input property changes

• ngOnInit: Called once the component is initialized

• ngDoCheck: Called during every change detection run

• ngAfterContentInit: Called after content (ng-content) has been projected into the component

• ngAfterContentChecked: Called after every check of the projected content

• ...read more
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Q5. Explain CSS box model
Ans. 
CSS box model is a fundamental concept in web design that defines the structure and layout of elements on a webpage.
• The box model consists of content, padding, border, and margin.

• Content area is where text or images are displayed.

• Padding is the space between the content and the border.

• Border is the line that surrounds the padding.

• Margin is the space outside the border.

• Each of these components can be styled using CSS pr
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