Interview Questions and Answers

Python code to find the employee with second largest income in a list of employees

• Sort the list of employees by income in descending order

• Return the employee at index 1 in the sorted list

The candidate needs to identify unique characters in a given substring and calculate their length.

• Iterate through the substring and store each character in a set to keep track of unique characters

• Calculate the length of the set to determine the number of unique characters

• Return the set of unique characters and their length as an array of strings

Regulatory reporting involves submitting data to regulatory authorities to ensure compliance with laws and regulations.

• Regulatory reporting is the process of submitting data to regulatory authorities to demonstrate compliance with laws and regulations.

• It is crucial for financial institutions to report accurate and timely information to regulatory bodies such as the SEC or FINRA.

• Regulatory reporting helps ensure transparency, accountability, and integrity in the financial syst...read more

In Python, mutable objects can be changed after creation, while immutable objects cannot be changed.

• Mutable objects: lists, dictionaries, sets

• Immutable objects: strings, tuples, numbers

• Example: x = [1, 2, 3] (mutable), y = 'hello' (immutable)

Bagging and boosting are ensemble learning techniques used in machine learning to improve the performance of models by combining multiple weak learners.

• Bagging (Bootstrap Aggregating) involves training multiple models independently on different subsets of the training data and then combining their predictions through averaging or voting.

• Boosting involves training multiple models sequentially, where each subsequent model corrects the errors made by the previous ones. Examples ...read more

Creating a SAS macro involves defining the macro, assigning parameters, and executing the macro.

• Define the macro using %macro macro_name(parameters);

• Assign parameters using ¶meter_name.

• Execute the macro using %macro_name(parameter_values);

Trade settlement of equity refers to the process of transferring securities and funds between parties involved in a trade.

• Trade settlement involves the delivery of securities from the seller to the buyer and the payment of funds from the buyer to the seller.

• Settlement can be done through a central securities depository or directly between the parties involved.

• The settlement period can vary depending on the type of security and market regulations.

• Examples of trade settlement s...read more