Tata Elxsi Interview Questions and Answers

The input is checked for order and the result is printed as true or false.

• Check if the input is ordered by comparing opening and closing brackets

• Use a stack to keep track of opening brackets

• If a closing bracket is encountered, pop the top element from the stack and check if it matches the closing bracket

• If the stack is empty at the end, the input is ordered

The code snippet prints the reverse of a given string using a for loop.

• Initialize an empty string to store the reversed string.

• Iterate through each character in the original string using a for loop.

• Append each character to the beginning of the reversed string.

• Print the reversed string.

Web application testing is the process of evaluating the functionality, usability, and security of a web application.

• It involves testing the application's features, such as forms, navigation, and user interactions.

• It also includes checking for compatibility across different browsers and devices.

• Security testing is crucial to identify vulnerabilities and protect against attacks.

• Performance testing ensures the application can handle expected user load.

• Examples: testing an e-com...read more

A dict in Python is an unordered collection of key-value pairs.

• Dicts are enclosed in curly braces {}

• Each key-value pair is separated by a colon :

• Keys must be unique and immutable (strings, numbers, or tuples)

• Values can be of any type and can be duplicated

• Dicts are mutable and can be modified by adding, updating, or deleting key-value pairs

A decorator is a design pattern in Python that allows a user to add new functionality to an existing object or function.

• Decorators are denoted by the @ symbol followed by the name of the decorator function.

• They are used to modify the behavior of the decorated object or function without directly changing its source code.

• Decorators can be used for adding logging, timing, caching, authentication, and other cross-cutting concerns to functions or classes.

• They can be applied to fun...read more

Dunder method refers to special methods in Python that start and end with double underscores (__).

• Dunder methods are also known as magic methods or special methods.

• They are used to define behavior for built-in operations in Python, such as addition, subtraction, comparison, etc.

• Examples of dunder methods include __init__ for object initialization, __add__ for addition, __str__ for string representation, etc.

Lists and tuples are both sequence data types in Python, but they have some key differences.

• Lists are mutable, meaning their elements can be changed, added, or removed.

• Tuples are immutable, meaning their elements cannot be changed once defined.

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

• Lists are typically used for collections of similar items, while tuples are used for heterogeneous data.

• Lists have more built-in methods and are generally more flexible than ...read more

Generate and print a random IP address.

• Use the random module to generate random numbers for each octet of the IP address.

• Ensure that the generated IP address is valid by checking that each octet is within the range of 0-255.

• Join the octets together with periods to form the complete IP address.

• Print the generated IP address.