Whats Cloud Computing Flashcards
What’s server composed of?
+ CPU
+ RAM
+ Storage Data
+ Database, some servers have it.
+ Network.
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Wha is a Database?
A Data Storage which has a structured to leverage its searching.
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What is a network?
Cable, Routes, Switches and servers/computers connected with each other
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Router?
A networking device that forwards the data package between computer networks.
It works with the IP address of a computer.
Routers are used to navigate the Internet, they know where to send the packages on the Internet.
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Switch?
A network device that receives the package and knows where to deliver it, (Server or computer).
Work with the MAC address of the network interface.
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Most common problems of Local Data Center?
+ Costs of Maintenance
+ High time to replace servers
+ Scaling limits due to Capacity of servers or room.
+ Constantly monitoring (24/7)
+ The necessity to account with a Disaster Recovery.
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What’s Cloud Computing?
+ On-Demand Delivery.
+ Pay-As-You-Go Price (Pagas por lo que usas, no más)
+ Provisioning exactly the right size and type of computing resources that it needs.
+ Access to all resources almost instantly.
+ Simple Access to Servers, Storage, Databases, and Application Services.
+ The provider of the Cloud maintains the infrastructure (Networks, and Connected Hardware) to keep the services up.
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What are the 3 types Cloud that you can use or implement?
- Private Cloud.
- Public Cloud.
- Hybrid Cloud.
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Private Cloud
- Single Organization.
- Not exposed.
- Complete Control
- Security for sensitive applications.
- Meets the organization’s requirements.
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Public Cloud
+ Provided by Thrid Party.
+ On-Demand Delivery
+ Pay-as-you-go Price
+ Get exactly what you need.
+ Access to resources almost instantly.
+ Simple Access to resources.
+ Provider maintains the infrastructure.
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Hybrid Cloud?
+ Keeps some servers on-premise and extends some capabilities to the cloud.
+ Has control over sensitive assests into the private infrastructure.
+ Reduce costs translating some capabilities to the public cloud.
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The 5 Characteristic of Cloud Computing?
+ On-Demand self-service. Pay just as many resources as you need them.
+ Broad Network Access. The resources are available on network and can be accessed through different platforms.
+ Multitenancy and Resource Pooling. Multiple users sharing the same infrastructure with security and privacy, so Multiple users are serviced but the same physical resource.
+ Measure services. The user pays exactly for what he uses.
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Six advanteges of Cloud Computing?
- Trade Capital Expense (CAPEX) for Operational Expense (OPEX). Don’t own hardware and reduces the Total Cost of Ownership (TCO) and OPEX.
- Benefits for massive economies of scale.
- Stop Guessing Capacity. Don’t need to worry about the capacity to grow up.
- Increase speed and agility.
- Stop expending money on running a data center.
- Go Global in minutes.
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What problems solves the Cloud?
+ Flexibility, change the resources as you need.
+ Cost-Effectiveness.
+ Scalability. Increase or decrease nodes as you need.
+ Elasticity. Ability to scale as you need.
+ Hig-Availability and Fault Tolerance.
+ Agility. Speed on deploy, testing, and launching software applications.
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Type of Cloud Computing?
- On-Premise. you Manage All the infrastructure, from Hardware to Software/Application. There is no 3rd Party providers.
- IaaS: Infrastructure as a Service. You Manage the OS and upper level, the infrastructure (Platform), i.e: a company where you can host a virtual machine and manage it.
- PaaS: Platform as a Service. You only manage the application over a platform, publishing a Website or Webservices, over a specific platform.
- SaaS. You only manage the complete product but not the lower layers that make the software runs. Like Gmail, Zoom, etc…
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