Summary of Cloud Computing Essentials Training

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00:00:00 - 01:00:00

This video discusses the basics of cloud computing, including server virtualization, data centers, and networking. It explains the advantages of using the cloud, including the ease of replicating data and the ability to outsourcing the management of a data center.

00:00:00 Server virtualization is a technique that allows multiple operating systems to be run on a single physical machine by hiding the actual physical resources from the user.
00:05:00 This video explains the basics of cloud computing, including virtual machines and hypervisors. Several popular hypervisors are mentioned, as well as the advantages and disadvantages of using them.
00:10:00 Server virtualization is a technology that helps to optimize the use of server resources, by moving virtual machines from one server to another. This can reduce downtime due to hardware problems. Another advantage of virtual machines is that they can be easily cloned, which makes it easier to replicate a specific set of data.
00:15:00 A data center consists of racks to hold servers and other equipment, data storage, and a network. Rack sizes are standardized and each rack can hold a certain number of servers. Data storage can be in the form of hard drives, memory, or flash drives.
00:20:00 This video discusses the different components of a data center, including the storage and networking equipment. It also discusses the location of a data center, which can be either internal or outsourced to a third party.
00:25:00 In this video, the instructor explains the basics of cloud computing, including the concept of data centers and networking. He also explains the value proposition of the cloud, which is that it takes away the burden of running a data center from the user. Finally, he explains the importance of networking in cloud computing.
00:30:00 In this video, the basics of the IPv4 address scheme and subnets are explained. The network prefix is the most significant bit group in an IPv4 address, and the host identifier is the last number in the address.
00:35:00 The first three bytes of an IP address are the network prefix, which tells you the number of bits in the topmost part of the address. The remaining bits are the host identifier.
00:40:00 A routing table is a table of rules that determines where packets should be sent on a network. Gateways are important nodes in a computer network, connecting two different networks.
00:45:00 In this video, the basics of networking are discussed, including understanding networking terminology such as a routing table and gateway. Next, storage on the cloud is explained, with a focus on direct attached storage (DAS), network attached storage (NAS), and object storage. Finally, we look at how networking is used in cloud computing, with a focus on virtual private cloud (VPC).
00:50:00 This video explains the different types of cloud computing, including cloud storage. It explains that cloud storage can be either physical storage attached to a server (direct attached storage), a virtual disk that is attached to a server (virtual attached storage), or an object storage space located elsewhere (object storage).
00:55:00 The video demonstrates the difference between object storage, which stores the data and metadata together within the same object, and block and file storage, which have a clear hierarchy and store the data and metadata separately.

01:00:00 - 02:00:00

This video introduces the concept of cloud computing, and discusses the various characteristics that define it. It also discusses the different companies that provide cloud services.

01:00:00 A load balancer is a device that helps to distribute load among multiple servers. It is used to increase the capacity or to improve the performance of a system.
01:05:00 The load balancer helps to distribute requests among multiple web servers, ensures high availability by monitoring instances, and can work in a round-robin or weighted round-robin mode to distribute load evenly.
01:10:00 This video explains the basics of load balancing, including the use of weighted round robin and layer 7 application delivery controllers.
01:15:00 Cryptography involves the use of complex algorithms and cryptographic keys to protect data. In this example, a simple message (hello) is encrypted with a symmetric key, and then encrypted again with an asymmetric key to create a ciphertext. The ciphertext is then decrypted with the same symmetric key to recover the original plaintext.
01:20:00 In this introductory video, the basics of cryptography are explained, including the use of symmetric and asymmetric keys, digital certificates, and the TLS protocol.
01:25:00 The five essential characteristics of a cloud, as defined by a standards organization such as the National Institute of Standards and Technology (NIST), are on-demand self-service, a broad networking axis, resource pooling, rapid elasticity, and measured billing.
01:30:00 The five important characteristics of the cloud are rapid elasticity, resource sharing, virtualization, multi-tenancy, and elasticity. These characteristics help the cloud to scale and provide an instant response to user needs.
01:35:00 This video introduces the concept of cloud computing, and discusses the various characteristics that define it. It also discusses the different companies that provide cloud services.
01:40:00 The video discusses the different types of clouds, and provides a brief overview of the different deployment models and service models available. It concludes with a discussion of the different cloud providers and their respective capabilities.
01:45:00 Cloud computing can be of four types: public, private, community, and hybrid. A public cloud is available to anyone, while a private cloud is available only to a particular entity. A hybrid cloud is a combination of two clouds, usually a public and a private type of combination. A data center plus a cloud or two public clouds and so on is a hybrid cloud.
01:50:00 In a private cloud, the responsibility of operating the servers and networking falls to the service provider, while the responsibility of storage and virtualization falls to the individual user. Infrastructure as a service (IaaS) is a model in which the provider takes care of the infrastructure, while platform as a service (PaaS) allows the user to build and deploy their own applications on top of the provider's infrastructure.
01:55:00 This video covers the basics of cloud computing, including how Amazon Web Services started, how it has evolved, and its current state.

02:00:00 - 02:45:00

This video discusses Amazon's various cloud-based services and how they can be used to benefit businesses and developers. It covers the compute, storage, and management services offered by AWS, as well as the various developer tools and services that are available.

02:00:00 Amazon Web Services is a leading cloud infrastructure company with a long history of innovation. The company has a "visionary" quadrant in Gartner's "Magic Quadrant for Cloud Infrastructure Services," and its market share is high.
02:05:00 This video covers the various services offered by Amazon Web Services (AWS). The video talks about the compute service, the ec2 container service, and the various developer tools and management tools that AWS provides.
02:10:00 The cloud computing essentials training video covers the basics of docker containers and ec2 instances, explains the importance of lambda and elastic bean stock, and reviews other storage services offered by Amazon.
02:15:00 In this video, the basic concepts of cloud computing are introduced, including Amazon AWS (Amazon Web Services), Elastic File System (EFS), Glacier Archiving, and Amazon Database Services.
02:20:00 The video covers the basics of Amazon's cloud computing services, including Elastic Cache, Amazon Redshift, and CloudFront. It also covers the management tools available for these services.
02:25:00 The video provides an overview of various cloud-based management tools, including Amazon's Cloud Formation and AWS Ops Work. These tools allow for automatic configuration and monitoring of resources, ensuring proper compliance and security.
02:30:00 The video discusses the various cloud computing options available, including using EC2 instances or even on-premise compute environments. It also covers the use of trusted advisor, which helps manage infrastructure optimization and security. Finally, it discusses Amazon's directory services, which include Active Directory support.
02:35:00 The video discusses the various messaging services available through Amazon Web Services, including Amazon SQS, Amazon Simple Notification Service, and Amazon SWF. It also discusses the various developer services available through Amazon Web Services, including the API gateway service.
02:40:00 Code commit is a source control service that allows for secure hosting of private git repositories, as well as seamless integration with existing git tools. Code deployments can be time-consuming and prone to problems, and AWS Code Deploy automates the process. Code pipeline is a process model that helps deliver features and updates rapidly and reliably. Athena is an interactive query service that allows for analysis of data stored in Amazon S3. Elasticsearch is a search service that allows for full text search and application monitoring.
02:45:00 The video discusses the various cloud-based services offered by Amazon. It discusses the various exams necessary for certification and highlights the importance of certain services, such as messaging and compute.