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IBM
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A data lake is a centralized repository that allows you to store all your structured and unstructured data at any scale.
Data lakes store raw data in its native format without the need to structure it beforehand
Data lakes can store a variety of data types such as logs, images, videos, and more
Data lakes enable data scientists and analysts to explore and analyze data without predefined schemas
Data sharing is the process of allowing multiple users or systems to access and use the same data.
Data sharing involves granting permissions to users or systems to access specific datasets.
It can be done through APIs, databases, file sharing, or cloud storage.
Examples include sharing customer data between different departments in a company or sharing research data with collaborators.
I applied via Naukri.com and was interviewed in Oct 2020. There was 1 interview round.
Second level cache is a caching mechanism used to improve performance by storing frequently accessed data in memory.
Second level cache is implemented at the application level and can be configured using frameworks like Hibernate.
To optimize SQL queries, one can use indexes, avoid using SELECT *, and use JOINs instead of subqueries.
SOLID principles are a set of design principles for writing maintainable and scalable cod...
To deploy an application in AWS, you need to create an EC2 instance, configure security groups, install necessary software, and upload your application code.
Create an EC2 instance in the desired region and select the appropriate instance type
Configure security groups to allow traffic to and from the instance
Install necessary software and dependencies on the instance
Upload your application code to the instance
Start the ...
I applied via Company Website and was interviewed before Aug 2020. There were 4 interview rounds.
I applied via Campus Placement and was interviewed in Dec 2020. There were 4 interview rounds.
I applied via Recruitment Consulltant and was interviewed before Jun 2021. There was 1 interview round.
BigInteger is used for mathematical operations involving very large integers in Java.
BigInteger is used when the range of values supported by primitive data types like int and long is not sufficient.
It is commonly used in cryptography and security applications.
It provides methods for arithmetic, bitwise, and logical operations on large integers.
Example: calculating factorial of a large number, generating large prime nu
Merge Sort Algo code in java
Divide the array into two halves
Recursively sort the two halves
Merge the sorted halves
Time complexity: O(n log n)
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