Untitled Quiz

Cloud Computing Overview

• Cloud computing is a way for companies to access servers, software, and data over the internet.
• Cloud servers are located in data centers around the globe.
• Using cloud computing, users do not have to manage physical servers or software applications on their own machines.

What is Cloud Computing?

• Cloud computing refers to servers that are accessed over the internet, and the software and databases that run on those servers.
• Cloud servers are located in data centres all over the world.
• Users and companies do not manage physical servers themselves or run applications on their own machines.

Introduction to Cloud Computing

• Cloud computing is adopted by many companies due to cost-cutting, reduced maintenance, and increased data capacity.
• The "pay-as-you-go" principle is a major driver in the transition to cloud computing. This means users only pay for services they use.

Types of Clouds

• Public Cloud
  • Provided by third-party vendors like AWS, Azure, and GCP, accessible to the public.
• Private Cloud
  • Deployed within an organization's own data center, providing complete control and enhanced security.
• Hybrid Cloud
  • Combines private and public cloud resources to provide flexibility and security.

Types of Cloud Services

• Infrastructure as a Service (IaaS):
  • Provides virtualized computing resources (servers, storage, networking).
  • Users manage their own applications and data on top of the provided infrastructure.
• Platform as a Service (PaaS):
  • Provides a platform for building, testing, and deploying applications, including development tools, frameworks and pre-configured environments.
  • Users focus on application code without managing underlying infrastructure.
• Software as a Service (SaaS):
  • Delivers software applications over the internet so users can access them via a web browser.
  • Users do not manage underlying infrastructure or software.

Cloud Architecture

• Front End (User Interface): The user interacts with software using applications.
• Back End (Servers): Where applications are processed.
• Cloud Network: Connect the systems together.

Advantages of Cloud Computing

• Cost-effectiveness: Pay-as-you-go pricing models
• Scalability: Easily increase or decrease resources in response to demand.
• Flexibility: Access data and services from anywhere with internet access.
• Reliability: Cloud providers maintain high availability and redundancy of services.
• Security: Cloud providers often have robust security measures in place to protect data.

Challenges of Cloud Computing

• Security: Concerns about data breaches and privacy issues.
• Vendor lock-in: Difficulty switching providers once applications are deployed.
• Cost Management: Managing cloud spending can be complex.
• Lack of control: Users have limited control over the underlying infrastructure.
• Compliance: Need to comply with industry regulatory guidelines.

Cloud Security Fundamentals

• Confidentiality: Authorized access to data.
• Integrity: Assurance data is accurate and unaltered.
• Availability: Data and services are accessible when required.
• Authenticity: Verifying the source of data.

Cloud Security Services

• Authentication: Verifying user identity.
• Authorization: Granting access rights.
• Auditing: Tracking activity and access to data.

Cloud Network

• A network of interconnected devices enabling communication and data exchange between devices.
• Multiple types
  • Local Area Network (LAN)
  • Wide Area Network (WAN)
  • Metropolitan Area Network (MAN)
  • Virtual Private Network (VPN)

Questions

• Define cloud computing, advantages and disadvantages.
• Differentiate between public, private, and hybrid cloud.
• Explain the different cloud service models (IaaS, PaaS, SaaS).
• Discuss cloud security concerns.
• Explain the role of networks in cloud computing.