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I applied via Campus Placement and was interviewed in Sep 2023. There were 5 interview rounds.
Round 1 : Aptitude Round (MCQs)
Time : 1.5 Hour
Consist of 3 Sections
1. Quant ( 40 Questions - 60 Minutes )
2. Verbal ( 10 Questions - 15 Minutes )
3. Pseudocode and Language Related Questions ( 10 Question - 15 Minutes )
Topics for Quant: Percentages, Profit & Loss, Speed Distance & Time, Clocks & Angles, Probability, Permutation & Combination, Number System, Simple & Compound Interest, Ratio & Proportion, Letter Series, Number Series, Ages, Blood Relations, Area & Volumes
Topics for Verbal: Paragraphs, Vocabulary, Grammer
Topics for Pseudocode MCQs: C++/Java, Syntax, Variables, Error identification, If-else conditions, for/while/do-while loops, Arrays, Strings, Arithmetic Operations, Bytes, Logical Operators.
Languages - 4, Development - 3, Databases - 3
Proficient in Java and Python for development
Familiar with SQL for database management
Continuously learning new languages and technologies
Object Oriented Programming is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
OOP focuses on creating objects that interact with each other to solve problems.
Encapsulation, inheritance, and polymorphism are key principles of OOP.
Classes are used to create objects, which can have attributes (fields) and methods (functions).
Example: ...
Encapsulation, Inheritance, Polymorphism, Abstraction
Encapsulation: Bundling data and methods that operate on the data into a single unit
Inheritance: Ability of a class to inherit properties and behavior from another class
Polymorphism: Ability to present the same interface for different data types
Abstraction: Hiding the complex implementation details and showing only the necessary features
The 4 pillars refer to the key components of a consulting framework: problem solving, client management, team collaboration, and personal development.
Problem solving involves analyzing issues, developing solutions, and implementing strategies.
Client management focuses on building relationships, understanding needs, and delivering value.
Team collaboration requires effective communication, coordination, and leveraging di...
Structured Query Language (SQL) is a standard language for managing and manipulating databases.
SQL is used to communicate with databases to perform tasks such as querying data, updating data, and creating databases.
It is a declarative language, meaning users specify what they want to retrieve or modify without needing to specify how to do it.
Common SQL commands include SELECT, INSERT, UPDATE, DELETE, CREATE, and DROP.
S...
Union and intersection are set operations in mathematics.
Union of two sets includes all unique elements from both sets
Intersection of two sets includes only elements that are common to both sets
Example: Set A = {1, 2, 3} and Set B = {3, 4, 5}, Union of A and B = {1, 2, 3, 4, 5}, Intersection of A and B = {3}
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
Normalization involves breaking down data into smaller, more manageable tables
It helps in reducing data redundancy by storing data in a structured way
Normalization ensures data integrity by avoiding update anomalies
There are different normal forms like 1NF, 2NF, 3NF, and BCNF
Example: A customer table and an ord...
There are three forms of normalization in database design: 1NF, 2NF, and 3NF.
1NF (First Normal Form) - Ensures that each column in a table contains atomic values. No repeating groups of columns are allowed.
2NF (Second Normal Form) - Requires that the table is in 1NF and all non-key attributes are fully functional dependent on the primary key.
3NF (Third Normal Form) - Builds on 2NF by ensuring that there are no transiti
1NF is the first step in database normalization where each column in a table contains only atomic values.
Each column in a table must contain only a single value
Values in a column must be of the same data type
Each column must have a unique name
Example: A table with columns for student ID, name, and address
2NF is a database normalization form that ensures non-prime attributes are fully functionally dependent on the primary key.
In 2NF, a table is in 1NF and all non-key attributes are fully functionally dependent on the primary key.
It eliminates partial dependencies by moving non-prime attributes to a separate table.
For example, if we have a table with columns {Student ID, Course, Instructor}, where Course depends on Stude...
Partial dependency in 2NF can be removed by splitting the table into two separate tables.
Identify the attributes causing partial dependency in the table.
Create a new table with the partially dependent attributes along with the determinant attribute.
Link the new table to the original table using a foreign key.
Ensure each table now satisfies 2NF independently.
3NF is a database normalization technique that ensures data is stored in a table with no transitive dependencies.
Each non-prime attribute is non-transitively dependent on every super key.
Every non-prime attribute is fully functionally dependent on the primary key.
Helps in reducing data redundancy and improving data integrity.
Example: If a table has columns A, B, and C where B is functionally dependent on A, and C is fu...
Character functions are functions in programming that manipulate individual characters within a string.
Character functions can be used to convert characters to uppercase or lowercase.
They can also be used to check if a character is a digit or a letter.
Examples include functions like toupper(), tolower(), isdigit(), isalpha().
Character functions are used to manipulate individual characters in a string.
toupper(): Converts a character to uppercase
tolower(): Converts a character to lowercase
Number functions are mathematical operations that can be performed on numbers to manipulate or analyze data.
Number functions include addition, subtraction, multiplication, division, exponentiation, etc.
They can be used to perform calculations in various fields such as finance, engineering, and statistics.
Examples of number functions include finding the average of a set of numbers, calculating the square root, or determ
Number functions are mathematical operations that can be performed on numbers.
Two number functions include addition and subtraction.
Addition is the process of combining two or more numbers to get a total.
Subtraction is the process of taking one number away from another to find the difference.
SQL query to find MAXIMUM salary from the table
Use the SELECT statement to retrieve data
Use the MAX() function to find the maximum salary
Specify the column name for salary in the query
SQL query to find second maximum salary from a table.
Use the MAX function to find the highest salary
Use the WHERE clause to exclude the highest salary
Order the results in descending order and limit the output to 1
Create a SQL query to create a database with proper fields
Use CREATE DATABASE statement to create a new database
Specify the database name after CREATE DATABASE
Define the fields and their data types using CREATE TABLE statement
Object Oriented Programming is a programming paradigm based on the concept of objects, which can contain data and code.
OOP focuses on creating objects that interact with each other to solve problems
Encapsulation, inheritance, and polymorphism are key principles of OOP
Examples of OOP languages include Java, C++, and Python
Encapsulation, Inheritance, Polymorphism, Abstraction
Encapsulation: Bundling data and methods that operate on the data into a single unit
Inheritance: Ability of a class to inherit properties and behavior from another class
Polymorphism: Ability to present the same interface for different data types
Abstraction: Hiding the complex implementation details and showing only the necessary features
Abstraction is the process of hiding complex implementation details and showing only the necessary features of an object.
Abstraction allows us to focus on what an object does rather than how it does it.
It helps in reducing complexity and improving efficiency in software development.
Pseudocode example: abstract class Shape { abstract void draw(); }
In the example above, the Shape class is abstract and only defines th...
Encapsulation is the concept of bundling data and methods that operate on the data into a single unit.
Encapsulation helps in hiding the internal state of an object and restricting access to it.
It allows for better control over the data by preventing direct access from outside the class.
Encapsulation is achieved in object-oriented programming languages through the use of access specifiers like public, private, and prote...
Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class.
Allows a class to inherit attributes and methods from another class
Promotes code reusability and reduces redundancy
Derived class can add its own unique attributes and methods
Examples: Parent class 'Animal' can have attributes like 'name' and methods like 'eat', and Child class 'Dog' can inherit th
There are 4 types of inheritance in object-oriented programming: single, multiple, multilevel, and hierarchical.
Single inheritance: a class inherits from only one base class.
Multiple inheritance: a class inherits from more than one base class.
Multilevel inheritance: a class inherits from a derived class, which in turn inherits from another class.
Hierarchical inheritance: multiple classes inherit from a single base clas
Explain them in short
Provide a concise explanation of a topic or concept
Avoid unnecessary details and focus on key points
Use clear and simple language to ensure understanding
Polymorphism is the ability of a single function or method to operate on different types of data.
Polymorphism allows objects of different classes to be treated as objects of a common superclass.
It enables a single interface to represent multiple data types.
Examples include method overloading and method overriding in object-oriented programming.
The regulatory authority of banks in India is the Reserve Bank of India (RBI).
Reserve Bank of India (RBI) is the central banking institution in India
RBI regulates the functioning of banks in India to ensure financial stability and prevent malpractices
It issues guidelines, policies, and regulations for banks to follow
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I applied via Walk-in and was interviewed before Dec 2020. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in Aug 2020. There were 3 interview rounds.
I applied via Recruitment Consultant and was interviewed in Nov 2020. There were 3 interview rounds.
I applied via Campus Placement and was interviewed before Feb 2020. There were 6 interview rounds.
I applied via Company Website and was interviewed before Feb 2020. There was 1 interview round.
I applied via Referral and was interviewed in Sep 2020. There were 3 interview rounds.
I applied via Walk-in and was interviewed before Sep 2019. There were 5 interview rounds.
I applied via Campus Placement and was interviewed in Oct 2020. There were 4 interview rounds.
Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order.
Start from the first element and compare it with the next element
If the next element is smaller, swap them
Repeat this process for all elements in the array
Continue this process until no more swaps are needed
A program to print all prime numbers
Take input from user for range of numbers
Loop through the range and check if each number is prime
Print the prime numbers
Hashmap is a data structure that stores key-value pairs and allows constant time access to values based on their keys.
Hashmap uses a hash function to map keys to indices in an array.
Collisions can occur when multiple keys map to the same index, which can be resolved using techniques like chaining or open addressing.
Examples of hashmap implementations include Java's HashMap class and Python's dict type.
Inheritance is a mechanism in object-oriented programming where a new class is created by inheriting properties of an existing class.
Inheritance allows code reuse and promotes code organization.
The existing class is called the parent or superclass, and the new class is called the child or subclass.
The child class inherits all the properties and methods of the parent class and can also add new properties and methods.
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