what are aws reserved instances?
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A Reserved Instance is a reservation of resources and capacity, for either one or three years, for a particular Availability Zone within a region. Unlike on-demand, when you purchase a reservation, you commit to paying for all of the hours of the 1- or 3-year term; in exchange, the hourly rate is lowered significantly.
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Amazon RDS DB snapshots and automated backups are stored in S3. You can use the AWS Management Console, the ModifyDBInstance API, or the modify-db-instance command to manage the period of time your automated backups are retained by modifying the RetentionPeriod parameter.
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I know that PCF gives solution using which host (client) can make their own cloud on-premises. AWS do not provide anything like that. And has lot of other services for elasticity, agility and scalability.
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['Create and manage IAM users.', 'Create and manage IAM groups.', "Manage users' security credentials.", 'Create and manage policies to grant access to AWS services and resources.']
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If you need more than 1,000 certificates at any given time, you must contact the AWS Support Center . The default quota is 10 domain names for each ACM certificate. ... You can request up to 100 domain names. To request an increase in your quota, create a case at the AWS Support Center .
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Fully-managed services In such a case what you can define is the computing power. There is also another type of AWS-managed services, such as Lambda, which doesn't disclose EC2 instances at all. You can only select the amount of memory needed, and the CPU will be allocated accordingly.
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A good example of PaaS is AWS Elastic Beanstalk. Amazon Web Services (AWS) offers over 100 cloud computing services such as EC2, RDS, and S3. Most of these services can be used as IaaS, and most companies who use AWS will pick and choose the services they need.
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['Amazon Cluster. Also known as the Amazon account, AWS has the main computer service EC2 (Elastic cloud computer) and ELB (Elastic Load Balancing). ... ', 'Storage. ... ', 'Databases. ... ', 'Management and security. ... ', 'Networks. ... ', 'Analytics. ... ', 'Application services. ... ', 'Implementation and management.']
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Azure Container Instances is a service that enables a developer to deploy containers on the Microsoft Azure public cloud without having to provision or manage any underlying infrastructure.
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An Instance Profile is a container for a single IAM Role. A typical convention is to create an IAM Role and an Instance Profile of the same name for clarity. An EC2 Instance cannot be assigned a Role directly, but it can be assigned an Instance Profile which contains a Role.
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AWS Lambda is an on-demand cloud computing resource offered in terms of function-as-a-service by AWS. ... The main difference between AWS Lambda vs EC2 (virtual server-based resources) is the responsibility of provisioning and use cases to name a few.
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Keys generated by AWS KMS are only stored and used in the region in which they were created. They cannot be transferred to another region.
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Amazon EBS delivers high-availability block-level storage volumes for Amazon Elastic Compute Cloud (EC2) instances. It stores data on a file system which is retained after the EC2 instance is shut down. ... Finally, Amazon S3 is an object store good at storing vast numbers of backups or user files.
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However, a total of 8 CPU cores (16 AWS vCPUs) and 64GB RAM are strongly recommended for a single production Amazon EC2 instance. An AWS vCPU is a single hyperthread of a two-thread Intel Xeon core for M5, M4, C5, C4, R4, and R4 instances.
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Regions. AWS has the concept of a Region, which is a physical location around the world where we cluster data centers. We call each group of logical data centers an Availability Zone. Each AWS Region consists of multiple, isolated, and physically separate AZ's within a geographic area.
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["Resource Waits. Resource waits occur when a worker requests access to a resource that is not available because that resource is either currently used by another worker, or it's not yet available.", 'Queue Waits. ... ', 'External Waits.']
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['Xplenty.', 'AWS Glue.', 'Alooma.', 'Talend.', 'Stitch.', 'Informatica PowerCenter.', 'Oracle Data Integrator.']