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Mains Answer Writing Latest Questions

Shreeyash Patil
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Shreeyash PatilBegginer
Asked: July 19, 2024In:
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codingcomputers and itcomputers upscengineeringoopspolymorphismsoftware engineeringupsc
  1. Anusree Sanalkumar
    Anusree Sanalkumar Begginer

    Polymorphism in Object-Oriented Programming allows methods to do different things based on the object it is acting upon, even if they share the same name. It lets one interface be used for a general class of actions, making code more flexible and reusable. Imagine you have a book class with a methodRead more

    Polymorphism in Object-Oriented Programming allows methods to do different things based on the object it is acting upon, even if they share the same name. It lets one interface be used for a general class of actions, making code more flexible and reusable.

    Imagine you have a book class with a method called “summary()”. If you create two types of books, “novel” and “biography”, each type can have its own version of “summary()”. When you use the “summary()” method on a book, it will show the right summary based on whether the book is a “novel” or a “biography”. Even though you use the same method name, it does different things depending on the type of book.

    class Book:
  def summary(self):
    return "This is a book."

class Novel(Book):
  def summary(self):
    return "This is a fictional story."

class Biography(Book):
  def summary(self):
    return "This is a real-life story."

novel = Novel()
biography = Biography()

print(novel.summary())
print(biography.summary())

    In this simpler code, the “summar()” method in the “book” class provides a general description, while the “novel” and “biography” classes override it with their specific summaries.

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Shreeyash Patil
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Shreeyash PatilBegginer
Asked: July 19, 2024In:
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blockchain technologiescodingcomputers and itcomputers upscsoftware engineeringupsc
  1. Google User
    Google User Begginer

    Blockchain technologies function as decentralized, distributed ledgers that record transactions across multiple computers. This decentralized nature ensures that no single entity has control over the entire network, enhancing security and transparency. Each transaction is grouped into a block, whichRead more

    Blockchain technologies function as decentralized, distributed ledgers that record transactions across multiple computers. This decentralized nature ensures that no single entity has control over the entire network, enhancing security and transparency. Each transaction is grouped into a block, which is then validated by network participants (nodes) through consensus mechanisms such as Proof of Work (PoW) or Proof of Stake (PoS). Once validated, the block is added to the chain in a linear, chronological order, making it nearly impossible to alter previous records without consensus from the majority of the network.

    Potential applications of blockchain extend across various industries:

    1. Financial Services: Cryptocurrencies like Bitcoin and Ethereum enable peer-to-peer transactions without intermediaries, reducing costs and increasing transaction speed.
    2. Supply Chain Management: Blockchain can track the provenance of goods, ensuring transparency and reducing fraud.
    3. Healthcare: Securely sharing patient records across providers while maintaining privacy.
    4. Voting Systems: Providing tamper-proof and transparent voting processes.
    5. Smart Contracts: Self-executing contracts with terms directly written into code, reducing the need for intermediaries.
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