Quikr Interview Questions, Process, and Tips

Two weaknesses are perfectionism and public speaking anxiety. I tackle them by setting realistic goals and practicing regularly.

• Set realistic goals to avoid getting overwhelmed by perfectionism

• Practice public speaking regularly to build confidence

• Seek feedback and constructive criticism to improve in both areas

Yes, I am willing to dedicate myself to the internship and participate in physical activities.

• I am committed to giving my best effort in all aspects of the internship.

• I understand the importance of physical activities for overall well-being and am willing to participate.

• I am excited about the opportunity to expand my market knowledge and skills through this internship.

• I am prepared to balance my time effectively to mee

I have a proven track record in successfully expanding markets and driving business growth.

• I have extensive experience in market research and analysis, allowing me to identify new market opportunities and develop effective expansion strategies.

• I have a strong network of industry contacts and partnerships, which can be leveraged to quickly establish a presence in new markets.

• I have a deep understanding of consumer behav...read more

Find the first non-repeating character in a string.

• Create a hash table to store character frequency

• Iterate through the string and check frequency in hash table

• Return the first character with frequency 1

Session is maintained through session affinity or sticky sessions.

• Session affinity ensures that a user's session is always directed to the same server.

• Sticky sessions use cookies to track the user's session and direct them to the same server.

• Load balancers can also use IP-based affinity to maintain sessions.

• Session persistence can be configured based on time or number of requests.

• Without session affinity, users may exp...read more

Find missing element in an array of elements from 0 to n-1 using different approaches.

• Approach 1: Sum of n natural numbers - sum of array elements

• Approach 2: XOR all array elements and XOR with n natural numbers

• Approach 3: Binary search for missing element

• Approach 4: Using a hash table to store array elements

Connection pooling is a technique of reusing database connections to improve performance.

• Connection pooling reduces the overhead of creating and destroying database connections.

• It maintains a pool of open connections that can be reused by multiple clients.

• It improves application scalability and reduces the chances of database connection errors.

• Examples of connection pooling libraries are HikariCP, Apache DBCP, and C3P0

To implement critical section in Java, use synchronized keyword on the shared variable.

• Use synchronized keyword to ensure only one thread can access the shared variable at a time.

• The shared variable should be the object on which the synchronized keyword is applied.

• Example: synchronized(sharedObject) { //critical section code }

To burn a wood of some size in 15 min instead of 30 min, split it into two halves and burn them simultaneously.

• Split the wood into two halves

• Burn both halves simultaneously

• Use a larger flame or accelerant to increase the burning rate

My current job skills can be used in Quickr for data analysis and project management.

• My experience in data analysis can be utilized to analyze user data on Quickr.

• My project management skills can be used to manage and coordinate projects on Quickr.

• My communication skills can be used to effectively communicate with team members and clients on Quickr.

• My problem-solving skills can be used to troubleshoot issues and find s

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