IBS Intelligence Manager Interview Questions and Answers

Q1. Internal working of HashMap and Concurrency Map
Ans. 
HashMap is a data structure that stores key-value pairs, while Concurrency Map allows for safe concurrent access.
• HashMap internally uses an array of linked lists to store key-value pairs.

• Concurrency Map implementations like ConcurrentHashMap use locks or other mechanisms to allow safe concurrent access.

• HashMap allows for null keys and values, while ConcurrentHashMap does not allow null keys or values.

• Concurrency Map im...read more
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Q2. Multithreading questions
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Q3. Questions on PCF, how the deployment works
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Q4. One Sorting question to list the count of employees by age
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Q1. How to optimize SQL Joins
Ans. 
Optimizing SQL Joins involves using proper indexing, limiting the result set, and avoiding unnecessary joins.
• Use indexes on columns involved in join conditions to improve performance

• Limit the result set by using WHERE clause to filter out unnecessary rows before joining

• Avoid unnecessary joins by only joining the tables that are needed for the query
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Q2. How to optimize performance
Ans. 
Optimizing performance involves setting clear goals, providing feedback, offering training and development opportunities, and fostering a positive work environment.
• Set clear goals and expectations for employees

• Provide regular feedback and recognition for good performance

• Offer training and development opportunities to help employees improve their skills

• Create a positive work environment that promotes collaboration and c...read more
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Medium algo and multi threading questions

Algo and multi threading question

Q1. Implement thread safe singleton
Ans. 
Thread safe singleton can be implemented using double-checked locking or synchronized block.
• Use double-checked locking to ensure only one instance is created.

• Use synchronized block to make sure only one thread can access the creation of instance at a time.

• Example: public class ThreadSafeSingleton { private static volatile ThreadSafeSingleton instance; private ThreadSafeSingleton(){} public static ThreadSafeSingleton ge...read more
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Q2. Other lld questions
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Q1. Tell me about yourself
Ans. 
Experienced manager with a background in team leadership, project management, and strategic planning.
• Over 5 years of experience in managing cross-functional teams

• Successfully led a project that resulted in a 20% increase in productivity

• Skilled in developing and implementing strategic plans to achieve company goals
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Q2. Assessment of financial
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Q1. String Function related SQL question
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Q2. Citi specific questions
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Q1. Market oulook ????
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Q2. Market View ???????
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Q1. Accrual and Difference between US gaap and IFRS
Ans. 
Accrual and difference between US GAAP and IFRS
• Accrual accounting recognizes revenue and expenses when they are incurred, regardless of when cash is received or paid

• US GAAP and IFRS differ in their treatment of certain accounting principles, such as revenue recognition, inventory valuation, and lease accounting

• Under US GAAP, revenue recognition is generally more prescriptive, while IFRS allows more judgment and flexibi...read more
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Q1. Deferred and Accrual difference and Cash Flow Statement and Management Fees
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APTA assessments with basic scenario based questions

Q1. Job description, explain your projects, SAS and excel basic questions
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Q1. Achievements from your last experience
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Q1. Introduction with Us teams, resume review, time series forecasting
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