In a mixture of milk & water, 70 litres water is mixed

Which of the following scenarios violates the Isolation property in the ACID properties of a transaction? 

Which of the following HTTP methods is idempotent and used to completely replace a resource on the server? 

Which file structure allows for efficient retrieval of data using a hierarchical model?

Which of the following accurately describes the primary benefit of server virtualization in a data center environment? 

In object-oriented programming, what type of polymorphism is achieved at runtime? 

Which of the following protocols is primarily used to assign IP addresses dynamically to devices on a network? 

Truncate command in SQL

SMTP commands

What will be the output of the following code snippet?

class Animal:

    def sound(self):

        return "Some sound"