Cognizant GenC Interview Questions, Process, and Tips

Yes, Python is an interpreted language.

• Python code is executed line by line without compilation

• Python interpreter converts code into bytecode and executes it

• Python interpreter is available for multiple platforms

• Python can also be compiled into executable code using tools like PyInstaller

List is mutable while tuple is immutable.

• Lists can be modified while tuples cannot

• Lists use square brackets [] while tuples use parentheses ()

• Lists are used for collections of data that can be changed while tuples are used for fixed collections of data

• Lists are slower than tuples

• Example: list = [1, 2, 3], tuple = (1, 2, 3)

Yes, Python is case sensitive. Decorators are functions that modify the behavior of other functions.

• Python is case sensitive, meaning that 'hello' and 'Hello' are two different variables

• Decorators are functions that take another function as input and extend its functionality

• They are denoted by the '@' symbol and placed above the function definition

• Example: @decorator_function def my_function(): # code here

• Common ...read more

Slicing is a way to extract a portion of a sequence (string, list, tuple) in Python.

• Syntax: sequence[start:stop:step]

• start is the index where the slice starts (inclusive)

• stop is the index where the slice ends (exclusive)

• step is the interval between each index in the slice

• Examples: 'hello'[1:4] returns 'ell', [1,2,3,4,5][::2] returns [1,3,5]

Pass, continue and break are control statements used in loops and conditional statements.

• Pass statement is used to do nothing in a loop or conditional statement.

• Continue statement is used to skip the current iteration of a loop and move to the next iteration.

• Break statement is used to exit out of a loop or conditional statement.

Python is a high-level, interpreted programming language known for its simplicity and ease of use.

• Python is used for web development, data analysis, artificial intelligence, and more.

• It has a large standard library and supports multiple programming paradigms.

• Python code is easy to read and write, making it a popular choice for beginners.

• Python is dynamically typed, meaning variables can change type during runtime.

• Popul...read more

The program prints a pattern of alternating 1s and 0s in a specific sequence.

• Use a loop to iterate through the given sequence of numbers

• Inside the loop, check the length of each number and print the corresponding pattern of 1s and 0s

• Repeat the pattern until all numbers are processed

Inheritance is the process by which genetic information is passed down from parents to their offspring.

• Inheritance determines traits such as eye color, hair color, and height.

• It occurs through the transmission of DNA from parent to child.

• Inherited traits can be dominant or recessive, and can be influenced by multiple genes.

• Mutations in genes can also affect inheritance patterns.

• Inheritance can be studied through pedigr

OOPs in Java is a programming paradigm that focuses on objects and their interactions.

• Encapsulation, Inheritance, Polymorphism, and Abstraction are the four pillars of OOPs in Java.

• Encapsulation is the process of hiding implementation details from the user.

• Inheritance is the process of inheriting properties and methods from a parent class.

• Polymorphism is the ability of an object to take on many forms.

• Abstraction is the...read more

Object-oriented programming paradigm that focuses on data encapsulation, inheritance, and polymorphism.

• Encapsulation: bundling of data and methods that manipulate the data within a single unit

• Inheritance: ability of a class to inherit properties and methods from a parent class

• Polymorphism: ability of objects to take on multiple forms or behaviors depending on the context

• Examples: Java, C++, Python