NJ India Interview Questions and Answers

First round Aptitude + Technical questions on CS fundamentals

Q1. Frog jump Dynamic programming question
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Q2. Remove zeroes from a numbers only string and insert at last also maintain the relative order
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Remove zeroes from a numbers only string and insert at last while maintaining relative order.
• Iterate through the string and separate numbers and zeroes

• Store numbers in an array and zeroes in a separate array

• Concatenate the numbers array with the zeroes array at the end
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Q3. One sql question on joins
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Q1. What do you mean by corporate actions
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Corporate actions refer to events initiated by a public company that can affect its shareholders and securities.
• Corporate actions can include dividends, stock splits, mergers, acquisitions, rights issues, and spin-offs.

• These actions can impact the value of securities held by investors and may require adjustments to portfolios.

• Investors need to stay informed about corporate actions to make informed decisions about their
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Q2. What is spin off in Corporate action
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A spin off in Corporate action is when a company creates a new independent company by separating a part of its business.
• A spin off involves a parent company distributing shares of a subsidiary to its existing shareholders.

• The new independent company operates separately from the parent company.

• Spin offs can be done to unlock value, focus on core businesses, or improve efficiency.

• Examples of spin offs include the separat...read more
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Q3. What is derivatives and its type.
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Derivatives are financial contracts whose value is derived from an underlying asset or group of assets.
• Derivatives can be used for hedging, speculation, or arbitrage.

• Types of derivatives include options, futures, forwards, and swaps.

• Options give the holder the right, but not the obligation, to buy or sell an asset at a specified price before a certain date.

• Futures are contracts to buy or sell an asset at a predetermine...read more
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Q4. What is difference between futures and forwards?
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Futures are standardized contracts traded on exchanges, while forwards are customized contracts traded over-the-counter.
• Futures are traded on exchanges, while forwards are traded over-the-counter.

• Futures are standardized in terms of contract size, expiration date, and settlement, while forwards are customizable based on the needs of the parties involved.

• Futures require margin accounts and daily settlement, while forwar...read more
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Q5. What is credit default swap?
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A credit default swap is a financial derivative contract that allows an investor to transfer the credit risk of a fixed income security to another party.
• It is essentially a form of insurance against the default of a borrower or issuer of debt.

• The buyer of the credit default swap makes periodic payments to the seller in exchange for protection against default.

• If the borrower defaults on their debt, the seller of the cre...read more
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Q6. What is bonus issue in corporate actions?
Ans. 
Bonus issue in corporate actions refers to the issuance of additional shares to existing shareholders at no cost.
• Bonus issue is a form of corporate action where a company distributes additional shares to its existing shareholders for free.

• This is done as a way to reward shareholders without affecting the company's cash reserves.

• Shareholders receive additional shares in proportion to their existing holdings, maintaining...read more
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Q7. In PUT option if strike price is greater than current market price then is it in ITM, OTM or ATM?
Ans. 
In-the-money (ITM) option
• If the strike price is greater than the current market price in a PUT option, it is considered in-the-money (ITM)

• ITM options have intrinsic value because they can be exercised for a profit

• Example: If the strike price of a PUT option is $50 and the current market price is $45, it is ITM
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Q8. What is reconciliation and stages of trade life cycle.
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Reconciliation is the process of comparing two sets of records to ensure they are in agreement. Trade life cycle includes order generation, execution, confirmation, settlement, and post-trade processing.
• Reconciliation involves comparing data from different sources to identify and resolve discrepancies.

• Stages of trade life cycle include order generation, execution, confirmation, settlement, and post-trade processing.

• Exa...read more
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Q9. What is function of custodian?
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Custodian is responsible for safeguarding assets, processing transactions, and providing reporting services for institutional clients.
• Safeguarding assets such as securities, cash, and other financial instruments

• Processing transactions including settlements, corporate actions, and income collection

• Providing reporting services like performance measurement, risk analysis, and compliance monitoring
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Q1. What do know about axa?
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AXA is a multinational insurance company headquartered in France.
• AXA is one of the largest insurance companies in the world.

• It offers a wide range of insurance products and services including life, health, property, and casualty insurance.

• AXA operates in multiple countries and regions globally.

• The company also provides asset management and investment services.

• AXA is known for its strong financial stability and customer
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Q2. General Question about background of candidate
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Q3. What do know about investment banking and what are the services they provide?
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Investment banking provides financial services to corporations, governments, and other institutions.
• Investment banks help companies raise capital through issuing stocks and bonds.

• They provide advisory services for mergers and acquisitions.

• They offer trading and market making services for securities.

• Investment banks also engage in asset management and wealth management.

• They assist in underwriting new debt and equity sec
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Q1. Introduction myself
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Q2. Core based questions
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Q1. Why looking for this field as your career
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Q1. What is index and types of index
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An index is a data structure that improves the speed of data retrieval operations in a database.
• Types of indexes include clustered index, non-clustered index, unique index, and composite index.

• Indexes can be created on one or multiple columns in a table.

• Indexes help in quickly locating data without having to scan the entire table.

• Examples of indexes are primary key indexes, foreign key indexes, and secondary indexes.
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Q2. What is SCD and its type
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SCD stands for Slowly Changing Dimension, which is a concept used in data warehousing to track changes in data over time.
• SCD Type 1: Overwrites old data with new data, losing historical information.

• SCD Type 2: Keeps multiple versions of the same record, each with a different timestamp.

• SCD Type 3: Maintains separate columns for current and previous values, limiting historical data tracking.

• SCD Type 4: Uses separate hist...read more
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Q3. Tell me the process of data pipeline
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Data pipeline is a series of processes that collect, transform, and load data from various sources to a destination for analysis.
• Data ingestion: Collecting data from various sources like databases, APIs, logs, etc.

• Data processing: Cleaning, transforming, and enriching the data to make it usable for analysis.

• Data storage: Storing the processed data in a data warehouse, data lake, or other storage solutions.

• Data analysis...read more
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Some coding questions

Q1. What is exception propogation in java?
Ans. 
Exception propagation in Java is the process of passing an exception from one method to another in the call stack.
• Exceptions can be thrown in a method and propagated up the call stack until they are caught and handled.

• If an exception is not caught in a method, it will be propagated to the calling method.

• This continues until the exception is caught or reaches the top of the call stack.

• Example: If a method 'A' calls meth...read more
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Q2. Expalin JDBC and return type of statement?
Ans. 
JDBC is a Java API for connecting and executing SQL queries on databases. The return type of a statement in JDBC is boolean.
• JDBC stands for Java Database Connectivity.

• It allows Java programs to interact with databases using SQL queries.

• The return type of a statement in JDBC is boolean, indicating whether the query was successfully executed.
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