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AWS Certified Data Engineer > Everything else > Flashcards

Everything else Flashcards

1
Q

What is S3?

A

S3 (Simple Storage Service) is an object storage service that stores any type of data as objects within buckets. It is scalable, durable, and cost-effective.

Use cases include data lakes, backups, archives, websites, and application hosting.

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2
Q

What are key features of S3?

A

Key features of S3 include versioning, lifecycle policies, encryption, and access control.

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3
Q

What is EC2?

A

EC2 (Elastic Compute Cloud) provides resizable compute capacity in the cloud with a wide selection of instance types optimized for various workloads.

Use cases include web servers, application servers, databases, and high-performance computing.

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4
Q

What are key concepts of EC2?

A

Key concepts of EC2 include AMIs (Amazon Machine Images), security groups, and EBS (Elastic Block Store).

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5
Q

What is VPC?

A

VPC (Virtual Private Cloud) is a logically isolated section of the AWS cloud where you can launch AWS resources in a virtual network that you define.

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6
Q

What are key components of VPC?

A

Key components of VPC include subnets, route tables, internet gateways, and NAT gateways.

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7
Q

What is IAM?

A

IAM (Identity and Access Management) securely controls access to AWS resources by creating users, groups, and roles, and assigning permissions.

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8
Q

What are key concepts of IAM?

A

Key concepts of IAM include policies, MFA (multi-factor authentication), and access keys.

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9
Q

What is CloudWatch?

A

CloudWatch is a monitoring and observability service that collects and tracks metrics, logs, and events.

Use cases include monitoring applications, troubleshooting performance issues, and detecting anomalies.

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10
Q

What are key features of CloudWatch?

A

Key features of CloudWatch include alarms, dashboards, and logs.

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11
Q

What is CloudFormation?

A

CloudFormation is an infrastructure-as-code service that allows you to create and manage AWS resources using templates.

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12
Q

What are key benefits of CloudFormation?

A

Key benefits of CloudFormation include automation, repeatability, and version control.

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13
Q

What is Lambda?

A

Lambda is a serverless compute service that allows you to run code without provisioning or managing servers.

Use cases include event-driven applications, data processing, and backend services.

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14
Q

What is RDS?

A

RDS (Relational Database Service) is a managed relational database service that supports MySQL, PostgreSQL, Oracle, SQL Server, etc.

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15
Q

What are key features of RDS?

A

Key features of RDS include automated backups, point-in-time recovery, and read replicas.

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16
Q

What is DynamoDB?

A

DynamoDB is a NoSQL database service that uses a key-value and document data model. It is highly scalable, low-latency, and fully managed.

Use cases include mobile apps, gaming, and IoT applications.

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17
Q

What is Redshift?

A

Redshift is a data warehousing service that is fast, scalable, and cost-effective.

Use cases include data analysis, business intelligence, and reporting.

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18
Q

What is Aurora?

A

Aurora is a MySQL and PostgreSQL-compatible relational database that offers high performance, availability, and scalability.

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19
Q

What are key features of Aurora?

A

Key features of Aurora include automated backups, point-in-time recovery, and global database.

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20
Q

What is ElastiCache?

A

ElastiCache is an in-memory data store (Redis and Memcached) that improves the performance of web applications by caching frequently accessed data.

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21
Q

What is EMR?

A

EMR (Elastic MapReduce) is a managed Hadoop framework that processes and analyzes large datasets using Hadoop ecosystem tools (Hive, Pig, Spark).

22
Q

What are key features of EMR?

A

Key features of EMR include scalability, flexibility, and cost-effectiveness.

23
Q

What is Kinesis?

A

Kinesis is a real-time data streaming service that collects, processes, and analyzes streaming data.

24
Q

What are key components of Kinesis?

A

Key components of Kinesis include Kinesis Data Streams, Kinesis Firehose, and Kinesis Analytics.

25
Q

What is Glue?

A

Glue is a serverless data integration service that discovers, prepares, and combines data for analytics, machine learning, and application development.

26
Q

What are key features of Glue?

A

Key features of Glue include ETL (extract, transform, load), data catalog, and job scheduling.

27
Q

What is Athena?

A

Athena is an interactive query service that allows you to analyze data in S3 using standard SQL.

28
Q

What is QuickSight?

A

QuickSight is a business intelligence service that creates and shares interactive dashboards and visualizations.

29
Q

What are key features of QuickSight?

A

Key features of QuickSight include data preparation, analysis, and storytelling.

30
Q

What is SageMaker?

A

SageMaker is a fully managed machine learning service that enables building, training, and deploying machine learning models.

31
Q

What are key features of SageMaker?

A

Key features of SageMaker include Jupyter notebooks, built-in algorithms, and model deployment options.

32
Q

What is SageMaker Feature Store?

A

SageMaker Feature Store is a purpose-built repository for storing, sharing, and managing machine learning features.

33
Q

What are key benefits of SageMaker Feature Store?

A

Key benefits include improved data quality, reduced training time, and increased model accuracy.

34
Q

What is SageMaker Data Wrangler?

A

SageMaker Data Wrangler is a visual interface for data preparation and feature engineering.

35
Q

What is KMS?

A

KMS (Key Management Service) is used to create and manage encryption keys to protect data at rest and in transit.

36
Q

What is CloudTrail?

A

CloudTrail tracks user activity and API calls for security analysis, compliance auditing, and operational troubleshooting.

37
Q

What is Config?

A

Config tracks resource configurations and changes for compliance auditing, security analysis, and change management.

38
Q

What is Security Hub?

A

Security Hub is a comprehensive security monitoring and management service that aggregates, organizes, and prioritizes security alerts.

39
Q

What is CodeCommit?

A

CodeCommit is a managed source control service that hosts Git repositories in the cloud.

40
Q

What is CodeBuild?

A

CodeBuild is a continuous integration service that builds and tests code in the cloud.

41
Q

What is CodeDeploy?

A

CodeDeploy is an automated code deployment service that deploys applications to EC2 instances, on-premises servers, or Lambda functions.

42
Q

What is CodePipeline?

A

CodePipeline is a continuous delivery service that automates the release process for applications.

43
Q

What is CDK?

A

CDK (Cloud Development Kit) allows you to define cloud infrastructure using familiar programming languages.

44
Q

What are Budgets in AWS?

A

Budgets allow you to set custom budgets and receive alerts when costs exceed thresholds.

45
Q

What is Cost Explorer?

A

Cost Explorer is a tool to analyze and manage your AWS costs and usage over time.

46
Q

What is Cost and Usage Report?

A

Cost and Usage Report is a detailed billing report that provides insights into your AWS spending.

47
Q

What are Data Lakes?

A

Data Lakes are centralized repositories for storing raw and processed data, typically built on S3.

48
Q

What are Data Warehouses?

A

Data Warehouses are structured repositories for storing and analyzing large datasets, typically built on Redshift.

49
Q

What is ETL?

A

ETL (Extract, Transform, Load) is the process of extracting data from source systems, transforming it, and loading it into a target system.

50
Q

What is Data Governance?

A

Data Governance refers to policies and procedures for managing data quality, security, and compliance.

51
Q

What is Data Lineage?

A

Data Lineage is the tracking of the origin, transformations, and movements of data.

52
Q

What is MLOps?

A

MLOps (Machine Learning Operations) encompasses practices for automating and managing the machine learning lifecycle.

AWS Certified Data Engineer (14 decks)

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