AWS Snowball User Guide
access policy language A language for writing documents (that is, policies (p. 144)) that specify who can
access a particular AWS resource (p. 148) and under what conditions.
account A formal relationship with AWS that is associated with (1) the owner email
address and password, (2) the control of resource (p. 148)s created under
its umbrella, and (3) payment for the AWS activity related to those resources.
The AWS account has permission to do anything and everything with all the
AWS account resources. This is in contrast to a user (p. 157), which is an entity
contained within the account.
account activity A web page showing your month-to-date AWS usage and costs. The account
activity page is located at https://aws.amazon.com/account-activity/.
ACL See access control list (ACL).
ACM See AWS Certificate Manager (ACM).
ACM PCA See AWS Certificate Manager Private Certificate Authority (ACM PCA).
ACM Private CA See AWS Certificate Manager Private Certificate Authority (ACM PCA).
action An API function. Also called operation or call. The activity the principal (p. 145)
has permission to perform. The action is B in the statement "A has permission
to do B to C where D applies." For example, Jane sends a request to Amazon
SQS (p. 113) with Action=ReceiveMessage.
Amazon CloudWatch (p. 110): The response initiated by the change in an
alarm's state: for example, from OK to ALARM. The state change may be triggered
by a metric reaching the alarm threshold, or by a SetAlarmState request.
Each alarm can have one or more actions assigned to each state. Actions are
performed once each time the alarm changes to a state that has an action
assigned, such as an Amazon Simple Notification Service (p. 113) notification,
an Auto Scaling (p. 115) policy (p. 144) execution or an Amazon EC2 (p. 111)
instance (p. 136) stop/terminate action.
active trusted signers A list showing each of the trusted signers you've specified and the IDs of the
corresponding active key pairs that Amazon CloudFront (p. 110) is aware of. To
be able to create working signed URLs, a trusted signer must appear in this list
with at least one key pair ID.
additional authenticated data Information that is checked for integrity but not encrypted, such as headers or
other contextual metadata.
administrative suspension Auto Scaling (p. 115) might suspend processes for Auto Scaling group (p. 115)
that repeatedly fail to launch instances. Auto Scaling groups that most commonly
experience administrative suspension have zero running instances, have been
trying to launch instances for more than 24 hours, and have not succeeded in that
time.
alarm An item that watches a single metric over a specified time period, and triggers
an Amazon SNS (p. 113) topic (p. 157) or an Auto Scaling (p. 115)
policy (p. 144) if the value of the metric crosses a threshold value over a
predetermined number of time periods.
allow One of two possible outcomes (the other is deny (p. 128)) when an
IAM (p. 118) access policy (p. 144) is evaluated. When a user makes a request
to AWS, AWS evaluates the request based on all permissions that apply to the
user and then returns either allow or deny.
Amazon API Gateway A fully managed service that makes it easy for developers to create, publish,
maintain, monitor, and secure APIs at any scale.
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