AWS SAA-C03

The worldwide network of Regions Availability Zones and edge locations that runs AWS services

AWS Global Infrastructure

A physical geographic area that contains multiple isolated Availability Zones

Region

One or more discrete data centers in a Region with independent power networking and connectivity

Availability Zone

A site used by AWS services such as CloudFront to cache content closer to users

Edge Location

A logically isolated virtual network in AWS where you launch resources

Amazon VPC

A range of IP addresses within a VPC

Subnet

A subnet that can route traffic to an internet gateway

Public Subnet

A subnet that does not have direct internet access through an internet gateway

Private Subnet

A VPC component that allows communication between resources in a VPC and the internet

Internet Gateway

A managed service that allows instances in a private subnet to access the internet outbound only

NAT Gateway

A set of rules that determines where network traffic from a subnet or gateway is directed

Route Table

A stateful virtual firewall attached to an AWS resource that controls inbound and outbound traffic

Security Group

A stateless firewall at the subnet level that controls inbound and outbound traffic

Network ACL

A static public IPv4 address designed for dynamic cloud computing

Elastic IP

A connection between two VPCs that enables private communication using private IP addresses

VPC Peering

A hub that connects multiple VPCs and on premises networks through a central gateway

AWS Transit Gateway

An encrypted connection between an on premises network and AWS over the internet

Site to Site VPN

A dedicated private network connection from on premises to AWS

AWS Direct Connect

A scalable DNS web service used for domain registration DNS routing and health checks

Amazon Route 53

A Route 53 record type that points to AWS resources without using an IP address

Route 53 Alias Record

A Route 53 feature that monitors resource availability and can influence DNS routing

Health Check

A Route 53 routing policy that returns a single resource record without special routing rules

Simple Routing Policy

A Route 53 policy that distributes traffic across resources based on assigned weights

Weighted Routing Policy

A Route 53 policy that routes users to the resource with the lowest network latency

Latency Routing Policy

A Route 53 policy that routes traffic to a standby resource when the primary becomes unhealthy

Failover Routing Policy

A Route 53 policy that routes users based on their geographic location

Geolocation Routing Policy

A web service that provides resizable virtual servers in the cloud

Amazon EC2

A configuration of CPU memory storage and networking capacity for an EC2 instance

EC2 Instance Type

A template that contains the software configuration needed to launch an EC2 instance

AMI

Temporary block storage physically attached to the host machine of an EC2 instance

Instance Store

Persistent block storage for use with EC2 instances

Amazon EBS

A point in time backup of an EBS volume stored in Amazon S3

EBS Snapshot

A scalable managed network file system for Linux based workloads

Amazon EFS

A family of managed file systems built for specific workloads such as Windows Lustre NetApp or OpenZFS

Amazon FSx

A logical grouping of EC2 instances that influences how they are placed on underlying hardware

Placement Group

A group of EC2 instances that automatically scales based on demand or health checks

Auto Scaling Group

A configuration template used to launch EC2 instances with defined settings

Launch Template

A service that automatically distributes incoming traffic across multiple targets

Elastic Load Balancer

A Layer 7 load balancer that routes HTTP and HTTPS traffic intelligently

Application Load Balancer

A high performance Layer 4 load balancer for TCP UDP and TLS traffic

Network Load Balancer

A load balancer used to deploy and scale third party virtual appliances

Gateway Load Balancer

A set of targets such as EC2 instances IPs or Lambda functions that receive traffic from a load balancer

Target Group

An object storage service designed for scalability durability availability and performance

Amazon S3

A container for storing objects in Amazon S3

S3 Bucket

A file and its metadata stored in Amazon S3

S3 Object

A feature that keeps multiple versions of an object in a bucket

S3 Versioning

A rule that automates object transition or expiration based on time or conditions

S3 Lifecycle Policy

The default S3 storage class for frequently accessed data

S3 Standard

A storage class for infrequently accessed data that still needs rapid access

S3 Standard IA

A lower cost infrequent access class that stores data in one Availability Zone

S3 One Zone IA

A storage class for archive data that needs millisecond retrieval

S3 Glacier Instant Retrieval

A low cost archive storage class with retrieval times in minutes to hours

S3 Glacier Flexible Retrieval

The lowest cost S3 archive storage class for long term retention with slow retrieval

S3 Glacier Deep Archive

A storage class that automatically moves objects between access tiers based on usage

S3 Intelligent Tiering

A feature that automatically copies objects between buckets within or across Regions

S3 Replication

An S3 feature that uploads large objects in smaller parts for efficiency and resiliency

Multipart Upload

A URL that grants temporary access to an S3 object without making the object public

Pre Signed URL

An S3 feature that allows a bucket to host static web content

Static Website Hosting

A content delivery network that caches content at edge locations for low latency delivery

Amazon CloudFront

The source from which CloudFront retrieves content such as an S3 bucket or load balancer

Origin

A CloudFront rule that defines how requests are handled for specific URL patterns

Cache Behavior

A managed relational database service that supports multiple database engines

Amazon RDS

An RDS feature that provides high availability by maintaining a synchronous standby in another Availability Zone

Multi AZ Deployment

A read only copy of a database used to offload read traffic and improve scalability

Read Replica

A high performance managed relational database compatible with MySQL and PostgreSQL

Amazon Aurora

A read only instance in an Aurora cluster that shares the same underlying storage

Aurora Replica

A fully managed serverless NoSQL key value and document database

Amazon DynamoDB

The attribute DynamoDB uses to distribute data across partitions

Partition Key

An optional second key in DynamoDB that allows multiple items with the same partition key

Sort Key

A DynamoDB capacity mode that automatically adjusts to request volume and charges per request

DynamoDB On Demand

A capacity mode where you specify the number of reads and writes per second

DynamoDB Provisioned Capacity

An in memory cache for DynamoDB that provides microsecond response times

DynamoDB Accelerator

A DynamoDB feature that automatically deletes expired items

Time to Live

A managed in memory caching service for Redis and Memcached

Amazon ElastiCache

An in memory data store commonly used for caching session storage and pub sub

Redis

A simple distributed in memory caching system used to accelerate applications

Memcached

A fully managed data warehouse service for analytics at scale

Amazon Redshift

A serverless compute service that runs code in response to events

AWS Lambda

A Lambda configuration that reads from services such as SQS Kinesis or DynamoDB Streams

Event Source Mapping

The number of Lambda function instances processing events at the same time

Concurrency

A Lambda setting that guarantees and limits concurrency for a function

Reserved Concurrency

A Lambda feature that keeps function environments initialized to reduce cold starts

Provisioned Concurrency

A managed service for creating publishing securing and monitoring APIs

Amazon API Gateway

A service that coordinates multiple AWS services into serverless workflows

AWS Step Functions

A fully managed message queue service for decoupling distributed systems

Amazon SQS

An SQS queue type that provides high throughput with at least once delivery

Standard Queue

An SQS queue type that preserves message order and supports exactly once processing semantics

FIFO Queue

The period during which a received SQS message is hidden from other consumers

Visibility Timeout

A queue used to store messages that could not be processed successfully after multiple attempts

Dead Letter Queue

A pub sub messaging service that sends messages to multiple subscribers

Amazon SNS

A serverless event bus that routes application and AWS service events to targets

Amazon EventBridge

A service for collecting and processing streaming data in real time

AWS Kinesis Data Streams

The base throughput unit of a Kinesis data stream

Shard

An infrastructure as code service for provisioning AWS resources using templates

AWS CloudFormation

A service that deploys and manages applications automatically on AWS infrastructure

AWS Elastic Beanstalk

A service for operational management patching automation and configuration of AWS resources

AWS Systems Manager

A service that records AWS API calls and account activity for governance auditing and compliance

AWS CloudTrail

A monitoring and observability service for metrics logs alarms and events

Amazon CloudWatch

A monitoring feature that triggers actions based on metric thresholds

CloudWatch Alarm

A service that controls authentication and authorization for AWS resources

IAM