Morningstar Quality Analyst Interview Questions and Answers

Find an odd occurring number among even occurring numbers.

• Use XOR operation to cancel out even occurring numbers and get the odd occurring number.

• Iterate through the array and XOR each element with the result variable.

• The final result will be the odd occurring number.

Print the spiral order of a binary tree and matrix.

• For binary tree, use level order traversal and alternate direction for each level.

• For matrix, use four pointers to traverse in spiral order.

• Example for binary tree: 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8 -> 9

• Example for matrix: 1 2 3 4 -> 8 7 6 5 -> 9 10 11 12 -> 16 15 14 13

Finding pairs in an array with a given sum.

• Iterate through the array and for each element, check if the difference between the given sum and the element exists in the array.

• Use a hash table to store the elements of the array and their indices for faster lookup.

• If there are multiple pairs with the same sum, return any one of them.

• If no pair is found, return null or an empty array.

Find total number of k element with given avg in an array in minimum time complexity.

• Use sliding window technique to traverse the array in O(n) time complexity.

• Maintain a sum variable to keep track of the sum of elements in the window.

• If the sum of elements in the window is equal to k times the given avg, increment the count.

• Move the window by subtracting the first element and adding the next element in the array.

Printing non-boundary elements of a binary tree

• Traverse the tree in any order (preorder, inorder, postorder)

• Check if the current node is not a boundary node (not the first or last node in its level)

• If it is not a boundary node, print its value

• Recursively traverse its left and right subtrees

Prototyping in JavaScript allows for quick and easy creation of new objects and functions.

• Prototyping allows for inheritance and sharing of properties and methods.

• New objects can be created using the 'new' keyword and the prototype of an existing object.

• Functions can also be prototyped to add new methods or properties.

• Example: function Person(name) { this.name = name; } Person.prototype.greet = function() { console.log...read more

I have a strong understanding of financial markets and their workings.

• Familiar with various financial instruments such as stocks, bonds, and derivatives

• Knowledge of market trends and analysis techniques

• Experience in financial modeling and forecasting

• Understanding of macroeconomic factors that impact financial markets

• Ability to interpret financial statements and reports

• Examples: analyzing stock performance, creating fin...read more

A mutual fund is a type of investment vehicle that pools money from multiple investors to invest in a diversified portfolio of stocks, bonds, or other securities.

• Mutual funds are managed by professional fund managers who make investment decisions on behalf of the investors.

• Investors buy shares in the mutual fund and the value of their investment is determined by the performance of the underlying securities.

• Mutual funds...read more

SEBI is the regulator of mutual funds in India.

• SEBI (Securities and Exchange Board of India) is the regulatory body for mutual funds in India.

• SEBI regulates the functioning of mutual funds and ensures that they comply with the regulations.

• SEBI also protects the interests of investors in mutual funds.

• SEBI has the power to take action against mutual funds that violate the regulations.

• SEBI has introduced various regulatio...read more