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I applied via Naukri.com and was interviewed in Aug 2023. There was 1 interview round.
Object-oriented programming concept that focuses on creating objects that interact with each other.
Encapsulation: Bundling data and methods that operate on the data into a single unit (object)
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 details and showing on
Smoke testing is a subset of regression testing, while sanity testing is a subset of acceptance testing.
Smoke testing is done to check if the software build is stable enough for further testing.
Sanity testing is done to check if specific functionalities are working correctly after changes.
Smoke testing is usually done before sanity testing.
Smoke testing is a shallow and wide approach, while sanity testing is a deep and...
They give me bunch of questions to solve in front of Senior .
I applied via Naukri.com and was interviewed before Feb 2023. There were 2 interview rounds.
String buffer and string builder are both used for manipulating strings, but string builder is faster and not thread-safe.
String buffer is synchronized, while string builder is not.
String buffer is slower due to synchronization overhead.
String builder is recommended for single-threaded scenarios.
String buffer is recommended for multi-threaded scenarios.
Both classes have similar methods for appending, inserting, and del
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Find pair of elements in an array whose sum is equal to a given number K.
Iterate through the array and for each element, check if K minus the element exists in the array.
Use a hash table to store the elements and their indices for faster lookup.
If multiple pairs exist, return any one of them.
If no pair exists, return null or an appropriate message.
Session is maintained using session affinity or sticky sessions.
Session affinity ensures that a user's session is always directed to the same server.
Load balancer uses a unique identifier to route requests to the same server.
Sticky sessions can be implemented using cookies or URL rewriting.
Session replication can also be used to maintain session data across multiple servers.
Singleton pattern ensures only one instance of a class is created and provides a global point of access to it.
Create a private constructor to prevent direct instantiation of the class
Create a private static instance of the class
Create a public static method to access the instance
Ensure thread safety by using synchronized keyword or static initialization block
Examples: Logger, Configuration Manager, Database Connection
Explaining abstract class, interface and multiple inheritance in PHP.
Abstract class is a class that cannot be instantiated and can have abstract methods.
Interface is a collection of abstract methods and constants that can be implemented by a class.
Multiple inheritance is not possible in PHP, but can be achieved using interfaces.
Interfaces can be implemented by multiple classes, allowing for multiple inheritance-like be
Write a stored procedure from given tables and conditions
Identify the tables and their relationships
Determine the conditions to be used in the stored procedure
Write the SQL code for the stored procedure
Test the stored procedure to ensure it returns the desired results
To increase PHP memory at run time, modify the php.ini file or use ini_set() function.
Edit the memory_limit value in php.ini file
Use ini_set('memory_limit', '256M') function to increase memory limit at run time
Check for memory leaks in the code
Use unset() function to free up memory after use
php.ini is a configuration file for PHP that allows users to customize various settings.
Change PHP settings such as memory limit, file upload size, and error reporting
Enable or disable extensions and modules
Set timezone and language settings
Configure email settings
Control caching and session settings
Use window.location to get domain from a url in jQuery.
Use window.location to get the full url
Use .hostname to get the domain name
Use .replace() to remove 'www.' if present
WAP to find smallest palindrome number larger than given number.
Convert the given number to string and check if it is already a palindrome.
If not, increment the number and check if it is a palindrome.
Repeat until a palindrome number larger than the given number is found.
Use a while loop to implement the above steps.
WAP to check if linked list elements is a palindrome without using any extra space.
Traverse the linked list and reverse the second half of the list
Compare the first half with the reversed second half
Use two pointers to traverse the list, one at normal speed and other at double speed
Find the first non-repeating character in a string.
Create a hash table to store the frequency of each character in the string.
Iterate through the string and check the frequency of each character.
Return the first character with a frequency of 1.
Connection pooling is a technique of reusing database connections to improve performance.
Connection pooling helps to reduce the overhead of creating and destroying database connections.
It maintains a pool of connections that can be reused by multiple clients.
Connection pooling is commonly used in web applications to handle multiple requests simultaneously.
It can be configured with parameters like maximum number of conn...
A singleton class in PHP is a class that can only be instantiated once.
Create a private constructor to prevent direct instantiation
Create a private static variable to hold the instance of the class
Create a public static method to get the instance of the class
Ensure that the public static method always returns the same instance
To connect to MySQL database using PHP, create a Connection class.
Use mysqli_connect() function to establish a connection
Pass the database credentials as parameters to the function
Create a constructor method to initialize the connection
Create a query method to execute SQL queries
Close the connection using mysqli_close() method
There are three types of errors in PHP: syntax errors, runtime errors, and logical errors.
Syntax errors occur when the code is not written correctly, such as missing semicolons or parentheses.
Runtime errors occur during the execution of the code, such as trying to access an undefined variable.
Logical errors occur when the code runs without errors, but produces unexpected results, such as a miscalculation in a formula.
Session in PHP allows to store user data on the server for later use.
Session starts when a user logs in and ends when the user logs out or the session expires.
Session data is stored on the server and identified by a unique session ID.
Session variables can be set and accessed using the $_SESSION superglobal array.
Session can be destroyed using the session_destroy() function.
Session can be used to store user-specific dat...
Find missing element in an array of elements from 0 to n-1
Calculate sum of all elements in array and subtract from sum of n natural numbers
Use XOR operation on all elements and n natural numbers
Sort the array and find the missing element
posted on 23 Feb 2015
posted on 23 Mar 2015
During my summer training, I learned various programming languages, software development methodologies, and practical application of theoretical concepts.
Learned programming languages such as Java, Python, and SQL
Gained knowledge of software development methodologies like Agile and Waterfall
Applied theoretical concepts in real-world projects, enhancing problem-solving skills
I was interviewed in Oct 2016.
posted on 7 May 2017
I was interviewed before May 2016.
In 5 years, I see myself as a senior software engineer leading a team of developers on innovative projects.
Continuing to enhance my technical skills through ongoing learning and certifications
Taking on more leadership responsibilities within the team
Contributing to the company's growth and success through my expertise
Mentoring junior team members to help them grow in their careers
I applied via Shine and was interviewed in Dec 2017. There was 1 interview round.
I am a results-driven sales professional with 5+ years of experience in exceeding sales targets and building strong client relationships.
Experienced in B2B sales and account management
Proven track record of meeting and exceeding sales targets
Strong communication and negotiation skills
Ability to build and maintain strong client relationships
Proficient in CRM software and sales analytics
Customer service refers to the assistance and support provided to customers before, during, and after a purchase.
Customer service involves addressing customer inquiries, concerns, and complaints.
It includes providing information about products or services, helping customers make purchasing decisions, and resolving issues.
Customer service can be provided through various channels such as phone, email, live chat, or in-pe...
To sell our product, we need to understand the customer's needs and show them how our product can solve their problems.
Research and understand the target market
Identify the customer's pain points and needs
Highlight the unique features and benefits of our product
Provide excellent customer service and follow-up
Offer promotions or discounts to incentivize purchase
Use persuasive language and storytelling to create an emoti...
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