10+ Nuvoco Vistas Interview Questions and Answers

I am proficient in Python and Java.

• I have experience in developing web applications using Django framework in Python.

• I have also worked on Java projects using Spring framework.

• I am familiar with object-oriented programming concepts and data structures.

• I have worked on projects involving database management using SQL.

• I am constantly learning and improving my skills in these languages.

Hashing is a technique to convert data of arbitrary size to a fixed size. Hash table is a data structure that uses hashing to store data.

• Hashing is used to index and retrieve items in a database because it is faster than other methods.

• Hash table is a data structure that uses a hash function to map keys to array indices.

• Hashing key is the input to the hash function that produces a hash value.

• Hashing is used in password storage, checksum generation, and data encryption.

SDLC stands for Software Development Life Cycle. It is a process followed by software development teams to design, develop and test high-quality software.

• The phases of SDLC are Planning, Analysis, Design, Development, Testing, Deployment, and Maintenance.

• Planning involves defining the project scope, goals, and objectives.

• Analysis involves gathering and analyzing requirements.

• Design involves creating a detailed design of the software.

• Development involves coding and building th...read more

Inner join, outer join, and left outer join are types of SQL joins used to combine data from multiple tables.

• Inner join returns only the matching rows from both tables

• Outer join returns all rows from both tables, with null values for non-matching rows

• Left outer join returns all rows from the left table and matching rows from the right table

• Example: Inner join - SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id

• Example: Outer join - SELECT * FROM table1 FULL OUTER...read more

Yes, we can implement circular queues using two stacks.

• We can use two stacks to implement a circular queue.

• One stack will be used for enqueue operation and the other for dequeue operation.

• When the enqueue stack is full, we can transfer all elements to the dequeue stack and vice versa.

• This way, we can maintain the circular nature of the queue.

• Example: https://www.geeksforgeeks.org/queue-using-stacks/

Yes, we can implement queues using two stacks.

• We can use two stacks, one for enqueue operation and another for dequeue operation.

• To enqueue an element, push it onto the first stack.

• To dequeue an element, pop all elements from the first stack and push them onto the second stack, then pop the top element from the second stack.

• This ensures that the first element that was enqueued is the first one to be dequeued.

• Time complexity for enqueue and dequeue operations is O(1).

Derivatives are financial contracts that derive their value from an underlying asset or security.

• Interest rate swaps involve exchanging fixed and floating interest rate payments between two parties.

• Forward contracts are agreements to buy or sell an asset at a predetermined price on a future date.

• Futures contracts are similar to forward contracts but are traded on exchanges and have standardized terms.

• Options give the holder the right, but not the obligation, to buy or sell an...read more

Stacks and queues are data structures used to store and manipulate collections of elements.

• Stacks follow the Last-In-First-Out (LIFO) principle, where the last element added is the first one to be removed.

• Queues follow the First-In-First-Out (FIFO) principle, where the first element added is the first one to be removed.

• Examples of stacks include the call stack in programming and the undo/redo feature in text editors.

• Examples of queues include waiting in line at a store and pr...read more

Yes, I know several sorting algorithms.

• One of the most popular is QuickSort, which uses a pivot element to divide the array into smaller sub-arrays and recursively sorts them.

• Another common algorithm is MergeSort, which divides the array into smaller sub-arrays and then merges them back together in sorted order.

• InsertionSort is a simple algorithm that iterates through the array and inserts each element into its correct position in a sorted sub-array.

• BubbleSort compares adjace...read more

Heap sort is a comparison-based sorting algorithm that uses a binary heap data structure.

• It divides the input into a sorted and an unsorted region.

• It repeatedly extracts the maximum element from the unsorted region and inserts it into the sorted region.

• It has a worst-case time complexity of O(n log n).

I would rate myself 8 in Java and 7 in database.

• I have extensive experience in Java programming and have worked on multiple projects using Java.

• I am proficient in database management and have worked with various database systems like MySQL and Oracle.

• I am constantly learning and improving my skills in both Java and database management.

• I have also completed relevant courses and certifications in Java and database management.

• I am confident in my ability to handle complex progra...read more

Solving Monty Hall problem using Bayesian probability

• Assign prior probabilities to each door

• Update probabilities based on host's action

• Calculate posterior probabilities and choose the door with highest probability

• Example: If prior probability of winning behind each door is 1/3, and host opens a door with a goat, the posterior probability of winning behind the remaining door is 2/3

• Example: Bayes' theorem can be used to calculate the posterior probability

Var is a measure of the potential loss on an investment due to market risk.

• Var stands for Value at Risk

• Types of var include historical var, parametric var, and Monte Carlo var

• Var helps in assessing the potential risk of loss in an investment portfolio

Journal entries in trading are used to record financial transactions and events.

• Journal entries are used to record transactions such as purchases, sales, and expenses.

• They are used to keep track of the financial health of a company.

• Examples of journal entries in trading include recording the purchase of inventory, recording the sale of goods, and recording expenses such as rent and utilities.

• Journal entries are typically recorded in a general ledger.

• They are important for fin...read more

Nomura is a leading global financial services firm with expertise in global markets.

• Nomura has a strong presence in global markets, offering a wide range of services such as investment banking, asset management, and research.

• They have a global network of offices and clients, providing opportunities to work on diverse and challenging projects.

• Nomura's reputation for innovation and excellence in global markets makes it an attractive choice for analysts seeking a dynamic and fas...read more