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Oracle
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I applied via Referral and was interviewed in Apr 2024. There were 3 interview rounds.
I applied via Approached by Company and was interviewed in Mar 2024. There were 4 interview rounds.
DSA questions
1. Sort array containing only 0,1,2 as elements inplace.
2. Identify and remove linked list
DSA questions based on graphs
Asked to implement Variant of Dijikstra algorithm
Vertical order traversal
Several puzzle
What people are saying about Oracle
I applied via Recruitment Consulltant and was interviewed in Sep 2024. There was 1 interview round.
Oracle interview questions for popular designations
Monolith has simplicity but lacks scalability, while microservices offer flexibility but introduce complexity.
Monolith: Simplicity in development and deployment, easier to debug and test
Monolith: Lack of scalability, all components tightly coupled
Microservices: Flexibility to use different technologies for different services
Microservices: Scalability, each service can be independently scaled
Microservices: Increased com...
Lock and Synchronised are both mechanisms used for thread synchronization in Java.
Lock is a more flexible and powerful mechanism compared to synchronized keyword in Java.
Lock interface provides more functionalities like tryLock(), lockInterruptibly(), etc.
Lock allows for more fine-grained control over locking and unlocking of resources.
Synchronized keyword is simpler to use but may lead to deadlocks in complex scenario...
Get interview-ready with Top Oracle Interview Questions
I applied via Approached by Company and was interviewed in Jun 2024. There was 1 interview round.
Use Selenium to extract values from a dynamic table
Identify the table using its locator (id, class, xpath, etc.)
Iterate through the rows and columns of the table to extract values
Use Selenium commands like findElements and getText to retrieve the values
Handle dynamic content by waiting for elements to be present or visible
To find the union of two arrays in Java, use a HashSet to store unique elements from both arrays.
Create two arrays of strings.
Convert arrays to HashSet to remove duplicates.
Combine both HashSets to get the union of arrays.
I applied via Campus Placement and was interviewed in Jun 2024. There were 2 interview rounds.
The assignment was given online and the questions were on DSA and SQL
I applied via LinkedIn and was interviewed in Jun 2024. There was 1 interview round.
Preprocessing large/small datasets involves cleaning, transforming, and organizing data to prepare it for analysis.
Remove duplicates and missing values
Normalize or standardize numerical features
Encode categorical variables
Feature scaling
Handling outliers
Dimensionality reduction techniques like PCA
Splitting data into training and testing sets
Some of the top questions asked at the Oracle interview -
The duration of Oracle interview process can vary, but typically it takes about less than 2 weeks to complete.
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