Oracle Financial Services Software Associate Consultant Interview Questions, Process, and Tips

Duration : - 1 Hour
Platform : - Hackerrank
Topics : - REST API, SQL and DSA

Q1. How to create a table in SQL and elements to it.
Ans. 
To create a table in SQL, use the CREATE TABLE statement and define its elements.
• Use CREATE TABLE statement followed by table name

• Define columns with data types and constraints

• Add primary key constraint to uniquely identify each row

• Example: CREATE TABLE customers (id INT PRIMARY KEY, name VARCHAR(50), email VARCHAR(50))
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Q2. How to use JOIN operation on tables. Give an Example.
Ans. 
JOIN operation is used to combine rows from two or more tables based on a related column between them.
• JOIN can be used with different types like INNER, LEFT, RIGHT, FULL OUTER, etc.

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column;

• JOIN can be used to fetch data from multiple tables in a single query.
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Q1. Bubble sort algorithm and how to optimize it.
Ans. 
Bubble sort repeatedly swaps adjacent elements if they are in wrong order.
• Bubble sort has a time complexity of O(n^2).

• It is not efficient for large datasets.

• Optimizations include adding a flag to check if any swaps were made in a pass and stopping if none were made.

• Another optimization is to keep track of the last swapped index and only iterate up to that index in the next pass.
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Q2. Balanced Parenthesis using Stack
Ans. 
Balanced Parenthesis using Stack is a problem to check if the given expression has balanced parentheses or not.
• Create an empty stack

• Traverse the expression string and for each character, check if it is an opening parenthesis

• If it is an opening parenthesis, push it onto the stack

• If it is a closing parenthesis, check if the stack is empty or if the top element of the stack is the corresponding opening parenthesis

• If the s...read more
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Q3. Kth largest element in an array
Ans. 
Finding the Kth largest element in an array.
• Sort the array in descending order and return the Kth element.

• Use a max heap to find the Kth largest element.

• Use quickselect algorithm to find the Kth largest element.
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Q1. Why OFSS ? How you are better than others?
Ans. 
OFSS is a leading consulting firm with a strong track record. I am better than others because of my skills, experience, and dedication.
• OFSS is a well-established and reputable consulting firm with a proven track record of success.

• I have a strong skill set and relevant experience that make me a valuable asset to OFSS.

• I am dedicated and committed to delivering high-quality results for clients.

• I have a track record of exc...read more
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Q2. Why you consider yourself fit for this role?
Ans. 
I am fit for this role because of my strong analytical skills, ability to work in a team, and experience in consulting.
• Strong analytical skills: I have a proven track record of analyzing complex problems and providing effective solutions.

• Ability to work in a team: I excel in collaborating with diverse teams to achieve common goals.

• Experience in consulting: I have previously worked as a consultant, gaining valuable expe...read more
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It was easy only, simple queue and array questions

Q1. Gave two queries , if you know java then its better. One was medium level and other was simple.
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Q2. Write suffix as count in succession
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Q1. Basic questions only.
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HackerRank coding assessment.

Q1. Sql basics were asked.
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Q2. 5 html tags were asked to explain.
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Q3. Given a number is prime or not.
Ans. 
A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.
• Check if the number is greater than 1.

• Iterate from 2 to the square root of the number and check if it divides the number evenly.

• If no divisor is found, the number is prime.
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Q1. Basic HR questions were asked
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Q2. Swap two numbers without using two variables
Ans. 
Swap two numbers without using two variables
• Use arithmetic operations like addition and subtraction

• Example: Swap 3 and 5 - 3 = 3 + 5, 5 = 8 - 5, 3 = 8 - 3
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Basic Aptitude OOPs DBMS

Q1. Projects based questions
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Q2. Wanted to know whether I knew banking
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Q1. What is SDLC life cycle
Ans. 
SDLC life cycle is a process used by software development teams to design, develop, and test high-quality software.
• SDLC stands for Software Development Life Cycle

• It includes phases like planning, analysis, design, implementation, testing, and maintenance

• Each phase has specific goals and deliverables to ensure the successful completion of the project

• Examples of SDLC models include Waterfall, Agile, and DevOps
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Q2. Explain concepts of OOPs
Ans. 
OOPs stands for Object-Oriented Programming concepts which include encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (object).

• Inheritance: Ability of a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implemen...read more
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Q1. Pseudocode for fibonacci sequence
Ans. 
Fibonacci sequence pseudocode
• Start with two variables set to 0 and 1

• Loop through desired number of times, adding previous two numbers to get next number

• Store each number in an array
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Q2. Pseudocode for palindrome
Ans. 
Palindrome pseudocode for array of strings
• Iterate through each string in the array

• For each string, compare the characters from start to end and end to start

• If all characters match, it is a palindrome
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