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I applied via LinkedIn and was interviewed in Aug 2024. There was 1 interview round.
Data warehouses are designed for analytical queries and reporting, while transactional databases are optimized for transactional processing.
Data warehouses are optimized for read-heavy workloads, allowing for complex queries and reporting.
Transactional databases are optimized for write-heavy workloads, ensuring data integrity and consistency.
Data warehouses often store historical data for analysis, while transactional ...
ETL is better for batch processing, ELT is better for real-time processing.
ETL is better for large volumes of data that need to be transformed before loading into a data warehouse.
ELT is better for real-time processing where data can be loaded into a data warehouse first and then transformed as needed.
ETL requires more storage space as data is transformed before loading, while ELT saves storage space by loading data fi
Data lake is a storage repository that holds a vast amount of raw data in its native format until it is needed.
Data lake stores raw, unstructured data from various sources.
Data lake allows for storing large amounts of data without the need for a predefined schema.
Data lake is cost-effective for storing data that may not have a clear use case at the time of storage.
Data warehouse stores structured data for querying and ...
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I was interviewed in Oct 2016.
Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
Inheritance allows for code reuse and promotes modularity.
The class that is being inherited from is called the superclass or base class.
The class that inherits from the superclass is called the subclass or derived class.
The subclass can access the public and protected members of the superclass.
Inhe...
Regular expressions in PHP are powerful tools for pattern matching and manipulating strings.
Regular expressions are defined using the preg_match() function in PHP.
They are used to search, replace, and validate strings based on specific patterns.
Regex patterns consist of a combination of characters and special symbols.
Modifiers can be added to the pattern to control the matching behavior.
Common regex functions in PHP in...
Polymorphism is the ability of an object to take on many forms. It allows objects of different classes to be treated as the same type.
Polymorphism allows a single interface to be used for different types of objects.
It enables code reusability and flexibility in object-oriented programming.
For example, a parent class 'Animal' can have multiple child classes like 'Dog', 'Cat', and 'Bird'. They can all be treated as 'Anim...
I was interviewed in Dec 2016.
Sort the individual digits of a 10 digit number.
Convert the number to a string to access individual digits
Use a sorting algorithm to sort the digits
Convert the sorted digits back to a number
The code for finding the Lowest Common Ancestor (LCA) in a Binary Search Tree (BST).
Start from the root node and compare it with the given two nodes.
If both nodes are smaller than the current node, move to the left subtree.
If both nodes are greater than the current node, move to the right subtree.
If one node is smaller and the other is greater, then the current node is the LCA.
Continue this process until the LCA is fou
A DBMS for managing college faculty, professors, courses, and students.
The DBMS should have tables for faculty, professors, courses, and students.
Each table should have appropriate attributes to store relevant information.
Relationships can be established between tables using foreign keys.
Queries can be used to retrieve information about faculty, professors, courses, and students.
The DBMS can be used to track enrollment
I was actively involved in coding competitions, hackathons, and programming clubs during college.
Participated in coding competitions such as ACM ICPC and Codeforces
Attended hackathons to work on real-world projects and improve problem-solving skills
Joined programming clubs to collaborate with peers and learn new technologies
Yes, I believe in seeking help when stuck in a problem as it leads to faster resolution and learning.
I believe in collaborating with team members to brainstorm solutions
I am not afraid to ask for help from more experienced developers
I utilize online resources like Stack Overflow or documentation when needed
Teamwork is collaborating with others towards a common goal, utilizing each member's strengths and skills.
Collaborating with others towards a common goal
Utilizing each member's strengths and skills
Communicating effectively and openly
Respecting and valuing diverse perspectives
Sharing responsibilities and supporting each other
Celebrating successes as a team
When faced with an unsolvable problem, I break it down, research, seek help, experiment, and iterate until a solution is found.
Break down the problem into smaller, manageable parts
Research and gather information related to the problem
Seek help from colleagues, online communities, or experts
Experiment with different approaches or solutions
Iterate and refine the solution based on feedback and results
In 5 years, I see myself as a senior software developer leading a team of developers on innovative projects.
Leading a team of developers on innovative projects
Senior software developer role
Continuing to learn and grow in the field
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Oracle
Amdocs
Automatic Data Processing (ADP)
Global Edge Software