Cloud Computing Overview

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is a key benefit of cloud computing in terms of processing effort?

  • Enhanced hardware performance requirements
  • Ability to run complex calculations remotely (correct)
  • Increased local device capability
  • Reduced reliance on data centers

Which statement accurately describes the nature of cloud computing?

  • It eliminates the need for Internet connectivity.
  • It requires installation of software on local devices.
  • It allows users to run applications via the Internet. (correct)
  • Applications and data are stored locally on user devices.

Why is downtime significant in evaluating cloud computing services?

  • It affects the number of applications available.
  • It directly impacts service quality and user experience. (correct)
  • It indicates a higher risk of data theft.
  • It determines the cost of service subscriptions.

How is cloud computing commonly represented in diagrams?

<p>By using a cloud symbol. (A)</p> Signup and view all the answers

What is a major concern related to cloud computing?

<p>Security of data and applications. (A)</p> Signup and view all the answers

Which layer of cloud computing provides physical server boxes?

<p>Infrastructure as a Service (IaaS) (D)</p> Signup and view all the answers

What is a primary disadvantage of cloud computing?

<p>Requires a high-speed Internet connection for access (D)</p> Signup and view all the answers

Which of the following is a benefit of Software as a Service (SaaS)?

<p>It offers business functionality without user management (D)</p> Signup and view all the answers

What potential cost concern may arise with cloud computing over time?

<p>Subscription fees exceeding buying hardware (B)</p> Signup and view all the answers

How does cloud computing address software licensing issues?

<p>By moving licensing to the data center level (B)</p> Signup and view all the answers

What may happen if a client computer crashes while using cloud services?

<p>Minimal data loss due to cloud storage (B)</p> Signup and view all the answers

One of the largest proponents of cloud computing is which company?

<p>Google (D)</p> Signup and view all the answers

Which of the following is NOT an advantage of cloud computing?

<p>Automatic local system updates (A)</p> Signup and view all the answers

How long would a classical computer take to break RSA 2048-bit encryption with one trillion operations per second?

<p>300 trillion years (B)</p> Signup and view all the answers

What is the primary advantage of quantum computing over classical computing?

<p>It can complete tasks in a fraction of the time. (D)</p> Signup and view all the answers

In what amount of time did Google's quantum computer Sycamore solve a problem that would take the fastest classical supercomputer 10,000 years?

<p>200 seconds (C)</p> Signup and view all the answers

What was the main flaw in Sessa's request for a reward related to chess?

<p>The king underestimated the amount needed. (A)</p> Signup and view all the answers

What would be required to store the state of a quantum computer with 100 qubits?

<p>Every atom of planet Earth. (B)</p> Signup and view all the answers

According to current estimates, how many operations per second does a quantum computer require to break RSA 2048-bit encryption in just 10 seconds?

<p>1 million operations per second (B)</p> Signup and view all the answers

How many qubits did Google's Sycamore processor have, functioning effectively?

<p>53 qubits (B)</p> Signup and view all the answers

What term describes the point when quantum computers surpass classical computers in capabilities?

<p>Quantum supremacy (A)</p> Signup and view all the answers

How many possible states can n bits represent?

<p>$2^n$ possible states, one at a time. (D)</p> Signup and view all the answers

Which of the following correctly describes a qubit?

<p>It has the ability to represent both 0 and 1 simultaneously. (B)</p> Signup and view all the answers

What concept in quantum mechanics allows qubits to exist in multiple states at once?

<p>Superposition (A)</p> Signup and view all the answers

According to Holevo's theorem, how much information can n qubits carry?

<p>At most n classical bits are accessible. (A)</p> Signup and view all the answers

What is a key difference between a classic bit and a qubit during a quantum computation?

<p>A qubit can exist in a superposition of states. (B)</p> Signup and view all the answers

How many classical bits are required to represent the same number of states as 2 qubits?

<p>4 classical bits (A)</p> Signup and view all the answers

What is one of the major concerns regarding cloud computing?

<p>The potential unavailability of remote servers. (A)</p> Signup and view all the answers

Flashcards

What is Cloud Computing?

Cloud computing is a new paradigm of the internet where software is delivered as a service, with applications and data stored on multiple servers accessible online.

Service Quality in Cloud Computing

The reliability and availability of cloud services are crucial for success. It measures how often a service is accessible without interruption.

Processing Power in Cloud Computing

Cloud computing shifts processing power from individual devices to data center facilities. This lets devices like phones tackle complex tasks by accessing powerful servers online.

What is High Uptime?

High uptime refers to prolonged periods of uninterrupted service. The higher the uptime percentage, the less downtime a service experiences.

Signup and view all the flashcards

Security in Cloud Computing

Data and application security are critical concerns in cloud computing. Protecting sensitive information is crucial for user trust and legal compliance.

Signup and view all the flashcards

What is Infrastructure as a Service (IaaS)?

The physical servers and infrastructure that form the foundation of cloud computing.

Signup and view all the flashcards

What is Platform as a Service (PaaS)?

A cloud computing layer that offers hosted platforms for developing and deploying applications, providing tools and frameworks.

Signup and view all the flashcards

What is Software as a Service (SaaS)?

A software delivery model where applications are accessed over the internet, with the vendor handling all maintenance and updates.

Signup and view all the flashcards

How does Cloud Computing improve device flexibility?

The ability to access and use cloud services from any device with an internet connection, regardless of the device's hardware specifications.

Signup and view all the flashcards

How does Cloud Computing simplify software licensing?

Cloud computing allows users to avoid the costs and hassle of purchasing, installing, and maintaining software licenses, as they are managed by the cloud provider.

Signup and view all the flashcards

How is Cloud Computing cost-effective for hardware upgrades?

One of the main advantages of cloud computing is the ability to avoid spending money on hardware upgrades, as the cloud provider manages and upgrades its infrastructure.

Signup and view all the flashcards

How does Cloud Computing improve data safety?

Cloud computing reduces the risk of data loss in case of device failure, as the data is stored on remote servers.

Signup and view all the flashcards

What is a qubit?

A quantum bit (qubit) is the fundamental unit of information in quantum computing, capable of holding multiple states simultaneously due to superposition.

Signup and view all the flashcards

What is Superposition in quantum computing?

Superposition allows a qubit to exist in multiple states simultaneously, unlike a regular bit that represents only one value at a time.

Signup and view all the flashcards

What is quantum computing?

Quantum computers leverage the principles of quantum mechanics to perform calculations exponentially faster than traditional computers for specific tasks.

Signup and view all the flashcards

How do qubits differ from bits?

While a single bit can represent one of two states (0 or 1), a qubit can represent both states concurrently due to superposition.

Signup and view all the flashcards

What are the potential advantages of quantum computing?

The potential of quantum computing lies in its ability to tackle problems that are computationally intractable for traditional computers, like breaking modern encryption algorithms.

Signup and view all the flashcards

How do qubits enable parallel processing?

A regular computer with 2 bits can only represent one state out of the four possible (00, 01, 10, 11) at a time. However, a quantum computer with 2 qubits can represent all four states simultaneously.

Signup and view all the flashcards

What are qubits?

Quantum computers use qubits, which can exist in a superposition of states (0 and 1 simultaneously), unlike classical bits that are limited to representing either 0 or 1.

Signup and view all the flashcards

What are the benefits of Quantum Computing?

Quantum computers can tackle problems that would take classical computers billions of years, like breaking advanced encryption algorithms, by leveraging quantum algorithms.

Signup and view all the flashcards

What is Quantum Supremacy?

The ability of a quantum computer to perform a calculation that is impossible for the most powerful classical computer in a reasonable amount of time. It marks a pivotal moment in quantum computing.

Signup and view all the flashcards

What is the power of exponential growth in Quantum Computing?

The rapid growth of quantum computer power as you add more qubits. However, the exponential increase in computational power comes with a huge storage requirement.

Signup and view all the flashcards

What is Google's Sycamore?

Google's quantum computer, Sycamore, successfully solved a specific problem in 200 seconds that would take the world's fastest supercomputer thousands of years.

Signup and view all the flashcards

Who is investing in Quantum Computing?

IBM, Microsoft, and Google are actively developing and making quantum computers accessible through online platforms.

Signup and view all the flashcards

What are some challenges of Quantum Computing?

Quantum computers hold tremendous potential, but they're still in their early stages of development. They face challenges like maintaining quantum coherence and scaling up qubit numbers.

Signup and view all the flashcards

Study Notes

Cloud Computing

  • Cloud computing is changing the Internet from a place to read web pages to one where users can run software applications.

  • The term 'cloud' is derived from how the Internet is often represented in network diagrams.

  • Cloud computing is a paradigm shift in Internet computing; software is treated as a service, and applications/data reside on multiple servers accessible via the Internet.

  • Cloud computing moves processing from local devices to data centers.

  • Any device (like a phone) can solve complex equations by sending arguments to a data center service, receiving results quickly.

  • Security of data and applications is a crucial issue with cloud computing.

  • Cloud computing consists of three layers:

    • Infrastructure as a Service (IaaS): physical server boxes.
    • Platform as a Service (PaaS): hosted application/framework/tools allowing users to build things on their platform.
    • Software as a Service (SaaS): vendor-managed business functionality; users don't need to manage services themselves.
  • Quality of service is critical for successful cloud computing

    • Downtime is a major concern, affecting success
    • 99.9999% uptime is a common target.
  • Cloud computing advantages include:

    • Minimal hardware requirements (e.g. mobile phones)
    • Centralization of software licensing
    • Lower or no costs for hardware upgrades.
    • Flexibility in device types (users can use different devices with Internet access).
  • Cloud computing disadvantages include:

    • Requires an active Internet connection
    • High-speed connections may be needed for certain applications
    • Long-term subscription fees may be more expensive than buying hardware.
    • Data/application security is a major concern because data is stored on remote servers that can experience failures without notice
    • Backups are critical for cloud computing security and service quality.

Quantum Computing

  • Quantum computers utilize quantum mechanics.

  • Quantum mechanics explains the motion and interaction of subatomic particles (photons, electrons).

  • A bit has two outcomes (0/1).

  • A qubit can exist in multiple states at once (both 0 and 1) thanks to superposition., holding up to two bits of data.

  • n qubits can hold 2^n possible states at once.

  • 64 bits can represent 18,446,744,073,709,551,616 different states.

  • Regular computers can only process one state at a time, making certain calculations very time-consuming

  • Quantum computers can handle all those states simultaneously, providing speed advantages

  • Quantum supremacy was demonstrated in 2019, where Google's Sycamore quantum computer solved a complex problem in 200 seconds that would take the world's fastest supercomputer around 10,000 years

  • Google's Sycamore is a 53-qubit processor ( one was not working)

  • Quantum computers are important because they can handle computations that are too complex for conventional computer

  • The problem of encryption and cryptography will change with the presence of quantum computers.

    • Breaking widely used RSA 2048-bit encryption, requires a classical computer a very long time, on the order of trillions of years, with current technology
    • A quantum computer, however, can do it in just 10 seconds with modest computational power

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Cloud & Quantum Computing PDF

More Like This

Use Quizgecko on...
Browser
Browser