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Software development life cycle is a process used by software development teams to design, develop, test, and deploy software.
SDLC consists of several phases including planning, analysis, design, implementation, testing, and maintenance.
Each phase has its own set of activities and deliverables that contribute to the overall development process.
Examples of SDLC models include Waterfall, Agile, and DevOps.
SDLC helps ensu...
I prioritize tasks based on deadlines, importance, and impact on overall goals. I use tools like to-do lists and calendars to stay organized.
I prioritize tasks based on deadlines, importance, and impact on overall goals
I use tools like to-do lists and calendars to stay organized
I communicate with team members and stakeholders to understand priorities and deadlines
I break down larger tasks into smaller, manageable steps...
Angular is a popular front-end framework for building dynamic web applications.
Developed and maintained by Google
Uses TypeScript for building applications
Follows the MVC (Model-View-Controller) architecture
Supports two-way data binding
Has a powerful CLI for scaffolding projects
Object-oriented programming concepts in PHP focus on classes, objects, inheritance, encapsulation, and polymorphism.
Classes: Blueprint for creating objects.
Objects: Instances of classes that contain properties and methods.
Inheritance: Allows a class to inherit properties and methods from another class.
Encapsulation: Bundling data and methods that operate on the data into a single unit.
Polymorphism: Ability to present t
Plus91 Technologies interview questions for popular designations
I applied via Naukri.com and was interviewed in Jan 2023. There were 4 interview rounds.
Agile methodology is an iterative approach to software development that emphasizes flexibility and customer satisfaction.
Agile focuses on delivering working software in short iterations
It values collaboration between team members and with customers
It emphasizes responding to change over following a plan
It involves continuous testing and feedback to improve the product
Examples of Agile methodologies include Scrum, Kanba
Development task on any website or software
I applied via Naukri.com and was interviewed before Aug 2022. There were 4 interview rounds.
I applied via Naukri.com
EC2 is a web service that provides resizable compute capacity in the cloud.
EC2 stands for Elastic Compute Cloud.
It allows users to rent virtual servers on which they can run their own applications.
EC2 instances can be easily scaled up or down based on demand.
Users have full control over their instances, including the choice of operating system, networking, and security settings.
EC2 provides a wide range of instance typ...
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Queue can be implemented using two stacks by maintaining the order of elements in the stacks.
Create two stacks, let's call them stack1 and stack2
When an element is enqueued, push it to stack1
When an element is dequeued, pop all elements from stack1 and push them to stack2
Pop the top element from stack2 and return it as the dequeued element
If stack2 is empty, repeat step 3
To get the front element of the queue, peek the
Left join returns all records from left table and matching records from right table. Full outer join returns all records from both tables.
Left join is used to combine two tables based on a common column.
In left join, all records from the left table are returned along with matching records from the right table.
If there is no match in the right table, NULL values are returned.
Example: SELECT * FROM table1 LEFT JOIN table...
Magic functions are special methods in PHP that start with __. Autoloading is a way to automatically load classes.
Magic functions are used to handle certain events in PHP, such as object creation or property access.
Autoloading allows PHP to automatically load classes when they are needed, without requiring manual includes.
Magic functions can be used in conjunction with autoloading to dynamically load classes or handle
Given three sorted arrays, find common elements.
Create three pointers to traverse each array
Compare the elements at the pointers and move the pointer of the smallest element
If all pointers point to the same element, add it to the result and move all pointers
Repeat until any pointer reaches the end of its array
Check if a number is a power of 2 or not.
A power of 2 has only one bit set in its binary representation.
Use bitwise AND operator to check if the number is a power of 2.
If n is a power of 2, then n & (n-1) will be 0.
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