Optum Global Solutions Interview Questions, Process, and Tips

Q1. Can you tell me about yourself?
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Q2. What are your strengths and weaknesses?
Ans. 
Strengths include problem-solving skills and adaptability. Weaknesses include perfectionism and time management.
• Strengths: problem-solving skills, adaptability

• Weaknesses: perfectionism, time management

• Example: I excel at quickly identifying and resolving complex technical issues, but I sometimes struggle with prioritizing tasks effectively.
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Q1. What are the types of relationships in Database Management Systems (DBMS)?
Ans. 
Types of relationships in DBMS include one-to-one, one-to-many, and many-to-many relationships.
• One-to-one relationship: Each record in one table is related to only one record in another table.

• One-to-many relationship: Each record in one table can be related to multiple records in another table.

• Many-to-many relationship: Multiple records in one table can be related to multiple records in another table.

• Examples: One-to-o...read more
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Q2. What is the concept of a pointer in programming?
Ans. 
A pointer in programming is a variable that stores the memory address of another variable.
• Pointers allow for direct manipulation of memory locations

• They are commonly used in languages like C and C++

• Example: int *ptr; ptr = # // ptr now points to the memory address of num
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Q1. About your self
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Q2. What you learned in recently
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Typing test should have 30 with 90% accuracy

Q1. Whats your strength and weakness and lots of basic things
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Q2. Why you want join this company
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Q1. Explain about yourself.
Ans. 
I am a Senior Data Engineer with 5+ years of experience in designing and implementing data pipelines for large-scale projects.
• Experienced in ETL processes and data warehousing

• Proficient in programming languages like Python, SQL, and Java

• Skilled in working with big data technologies such as Hadoop, Spark, and Kafka

• Strong understanding of data modeling and database management

• Excellent problem-solving and communication sk
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Q2. Explain about your current project.
Ans. 
Developing a real-time data processing system for analyzing customer behavior on e-commerce platform.
• Utilizing Apache Kafka for real-time data streaming

• Implementing Spark for data processing and analysis

• Creating machine learning models for customer segmentation

• Integrating with Elasticsearch for data indexing and search functionality
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Q3. Big data concept
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Q4. Spark related questions
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Q1. Core Java Questions
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Q2. Spring Boot Questions
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Q1. HighLevelDesign Questions
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Q2. Basic Docker questions
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Q1. Explain how hashmap internally works
Ans. 
HashMap internally uses an array of linked lists to store key-value pairs.
• HashMap uses hashing to determine the index of the key in the array.

• If multiple keys hash to the same index, a linked list is used to store them.

• When retrieving a value, the key is hashed to find the index and then the linked list is searched for the key.
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Q2. Difference between vector and Arraylist
Ans. 
Vector is synchronized and slower, ArrayList is unsynchronized and faster.
• Vector is synchronized, ArrayList is not.

• Vector is slower due to synchronization, ArrayList is faster.

• Vector is legacy class, ArrayList is part of Java Collections framework.

• Vector doubles its size when full, ArrayList increases by 50%.
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It was comprehensive multiple choice questions pattern

Q1. 1.Tell me about yourself
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Q2. Strength and weakness
Ans. Short time and long time goal
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Q3. Why did you choose medical coding
Ans. What is the function of alpha and beta cells of pancreas
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Q4. Tell me the Physiology of circulatory system
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Q5. Function of alpha and beta cells of pancreas
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