Associate General Knowledge and Prerequisites Flashcards

Which AWS service provides a fully managed NoSQL key-value and document database with single-digit millisecond performance?

Answer: Amazon DynamoDB

Amazon DynamoDB is a serverless NoSQL database that delivers consistent single-digit millisecond response times at any scale.

Which of the following best describes the concept of 'elasticity' in cloud computing?

Answer: The ability to automatically scale resources up or down based on demand

Elasticity means the system can automatically acquire and release resources to match workload demand, avoiding over-provisioning.

What AWS tool can be used to estimate the cost of a proposed AWS architecture before deploying it?

Answer: AWS Pricing Calculator

The AWS Pricing Calculator lets you model proposed architectures and generate detailed cost estimates before any resources are provisioned.

An S3 bucket policy is evaluated along with which other policies to determine access to an S3 object?

Answer: IAM identity policies and S3 bucket policies

S3 access is determined by the union of IAM identity-based policies and resource-based S3 bucket policies.

Which AWS database service is purpose-built for storing and querying graph relationships?

Answer: Amazon Neptune

Amazon Neptune is a managed graph database service that supports property graph and RDF graph models for highly connected data.

Which feature of AWS Organizations allows you to set permission guardrails that apply to all accounts within an organizational unit?

Answer: Service Control Policies (SCPs)

Service Control Policies (SCPs) define the maximum available permissions for accounts in an AWS organization.

Which AWS service uses machine learning to continuously monitor your AWS environment for threats and unauthorized behavior?

Answer: Amazon GuardDuty

Amazon GuardDuty analyzes CloudTrail, VPC Flow Logs, and DNS logs using ML to detect malicious activity.