P Flashcards
pagination
The process of responding to an API request by returning a large list of records in small separate parts. Pagination can occur in the following situations:
pagination token
A marker that indicates that an API response contains a subset of a larger list of records. The client can return this marker in a subsequent API request to retrieve the next subset of records until the service responds with a subset of records and no pagination token, indicating that all records have been sent.
See Also pagination.
paid AMI
An Amazon Machine Image (AMI) that you sell to other Amazon EC2 users on AWS Marketplace.
paravirtual virtualization
See PV virtualization.
part
A contiguous portion of the object’s data in a multipart upload request.
partition key
A simple primary key, composed of one attribute (also known as a hash attribute).
See Also partition key.
See Also sort key.
PAT
Port address translation.
pebibyte
(PiB)
A contraction of peta binary byte, a pebibyte is 2^50 or 1,125,899,906,842,624 bytes. A petabyte (PB) is 10^15 or 1,000,000,000,000,000 bytes. 1,024 PiB is an exbibyte.
period
See sampling period.
permission
A statement within a policy that allows or denies access to a particular resource. You can state any permission like this: “A has permission to do B to C.” For example, Jane (A) has permission to read messages (B) from John’s Amazon SQS queue (C). Whenever Jane sends a request to Amazon SQS to use John’s queue, the service checks to see if she has permission and if the request satisfies the conditions John set forth in the permission.
persistent storage
A data storage solution where the data remains intact until it is deleted. Options within AWS include: Amazon S3, Amazon RDS, Amazon DynamoDB, and other services.
physical name
A unique label that AWS CloudFormation assigns to each resource when creating a stack. Some AWS CloudFormation commands accept the physical name as a value with the –physical-name parameter.
pipeline
AWS CodePipeline: A workflow construct that defines the way software changes go through a release process.
plaintext
Information that has not been encrypted, as opposed to ciphertext.
policy
IAM: A document defining permissions that apply to a user, group, or role; the permissions in turn determine what users can do in AWS. A policy typically allows access to specific actions, and can optionally grant that the actions are allowed for specific resources, like EC2 instances, Amazon S3 buckets, and so on. Policies can also explicitly deny access.
Auto Scaling: An object that stores the information needed to launch or terminate instances for an Auto Scaling group. Executing the policy causes instances to be launched or terminated. You can configure an alarm to invoke an Auto Scaling policy.