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AWS Cloud Practitioner 2024 > Domain 3 > Flashcards

Domain 3 Flashcards

Cloud Technology and Services

1
Q

Which AWS service automatically handles application health monitoring?

A

AWS Elastic Beanstalk
Elastic Beanstalk gives you the ability to deploy and manage applications in AWS Cloud without you having to understand or manage the underlying infrastructure. Elastic Beanstalk also includes functionality to monitor the health of your application.

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2
Q

A company needs to establish a dedicated and isolated network connection between the company’s on-premises data center and AWS.

Which AWS service will meet this requirement?

A

AWS Direct Connect
Direct Connect can establish a secure and consistent network connection with dedicated links that are isolated from the internet.

Direct Connect provides direct network connectivity from an internal network to AWS public services. This connectivity gives users with their own data centers the ability to connect directly to services provided by AWS, with no communication going over public internet.

Direct Connect links your internal network to a Direct Connect location over a standard Ethernet, fiber-optic cable. One end of the cable connects to your router. The other end connects to a Direct Connect router. Direct Connect requires a dedicated network connection and cannot use an existing network connection.

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3
Q

A company needs a database for queries. The database must summarize columns of data for analytical reports.

Which AWS service will meet these requirements?

A

Amazon Redshift

Amazon Redshift is a fully managed, petabyte-scale data warehouse service. You can use Amazon Redshift as a columnar database. Amazon Redshift can provide fast retrieval, which is often necessary in analytical applications.
Amazon RedShift is a very scalable database. However, there are limits on throughput and scale that can be achieved with an Amazon Redshift cluster.

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3
Q

A company is running an application replicated on six Linux-based Amazon EC2 instances across two Availability Zones in an AWS Region. The application needs shared access to data. The data is going to be frequently changed by the application within existing data files.

Which AWS storage solution would meet the company’s needs with the LEAST operational overhead?

A

Amazon Elastic File System (Amazon EFS)
Amazon EFS is a shared file system that gives EC2 instances the ability to share access to data in different Availability Zones in the same AWS Region.

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4
Q

What is Amazon Aurora?

A

Aurora is a fully managed relational database compatible with MySQL and PostgreSQL.

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5
Q

What is Amazon Neptune?

A

Neptune is a fully managed graph database.

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6
Q

A systems administrator wants to migrate a static website to AWS. The systems administrator wants to stop paying for the compute power necessary to run web servers.

Which AWS service will meet these requirements?

A

Amazon S3
Amazon S3 provides object storage. Additionally, you can use Amazon S3 to host static website content, including HTML, JavaScript, and CSS files. With Amazon S3, you do not need an always-running EC2 instance.

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7
Q

What is Amazon Lightsail?

A

You can use Lightsail to host a static website. However, the website would run on an EC2 instance. Therefore, you would need to pay for the compute charges associated with running the EC2 instance.

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8
Q

What is AWS Lambda

A

Lambda is a serverless compute service that you can use to run code without the need to provision infrastructure or manage servers. You can use Lambda for dynamic content, to run functions, or to process requests. Lambda is a compute service, and you pay for the compute runtime.

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9
Q

What is Amazon EC2

A

Amazon EC2 is a web service that provides secure, resizable compute capacity in the cloud. Amazon EC2 provides pay-as-you-go compute capacity that you can use for website hosting. Amazon EC2 provides you with the ability to provision virtual servers in the AWS Cloud.

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10
Q

Which AWS services offer compute capabilities? (Select TWO.)
a. Amazon EC2
b. Amazon S3
c. Amazon Elastic Block Store (EBS)
d. Amazon Cognito
e. AWS Lambda

A

a. Amazon EC2 & e. AWS Lambda
Amazon EC2 provides you with the ability to provision virtual servers in the AWS Cloud. Amazon EC2 provides compute capabilities.

Lambda is a serverless service and provides you with the ability to run code without the need to provision or manage servers. Lambda provides compute capabilities.

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11
Q

What is Amazon Cognito?

A

Cognito is used to provide authentication, authorization, and user management for your mobile or web applications. Cognito is an identity and access management service, and does not provide compute capabilities.

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12
Q

What is Amazon Elastic Block Store? (Amazon EBS)

A

Amazon EBS provides block-level storage that can be used with EC2 instances. Amazon EBS is a storage service and does not provide compute capabilities.
Amazon EBS automatically replicates data within an Availability Zone. Amazon EBS does not support Cross-Region Replication.

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13
Q

Which element defines an AWS Availability Zone?

A

One or more physical data centers with redundant power and network.

The AWS infrastructure is built with redundancy to avoid single points of failure. Availability Zones have low-latency connections between them within an AWS Region.

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14
Q

Which AWS service provides virtually unlimited throughput and scale?

A

Amazon DynamoDB

DynamoDB is a serverless, non-relational database that can automatically scale tables for both storage and throughput while still maintaining performance.

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15
Q

What is Amazon RDS for Oracle?

A

Amazon RDS for Oracle has limitations on both throughput and storage, and these limits relate to the instance size of the DB instance.

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16
Q

What is Amazon OpenSearch Service

A

OpenSearch Service has limitations on both throughput and storage based on the size of the cluster.

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17
Q

Which AWS service can be used to decouple applications?

A

Amazon Simple Queue Service (Amazon SQS)

Amazon SQS is a fully managed message queue service that provides you with the ability to decouple and scale microservices, distributed systems, and serverless applications. Amazon SQS eliminates the complexity and overhead associated with managing and operating message-oriented middleware, and empowers developers to focus on differentiating work.

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18
Q

What is AWS Config?

A

AWS Config provides you with the ability to assess, audit, and evaluate configurations of your AWS resources.

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19
Q

What is AWS Batch?

A

AWS Batch is designed to run processing jobs at scale.

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20
Q

What is Amazon Simple Email Service? (Amazon SES)

A

Amazon SES is a cloud-based email service designed to help you send and receive emails.

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21
Q

Which AWS service can convert text to lifelike speech?

A

Amazon Polly

Amazon Polly is a service that turns text into lifelike speech. Amazon Polly gives you the ability to create applications that talk. With Amazon Polly, you can build entirely new categories of speech-enabled products. Amazon Polly does not analyze documents or generate insights from the text.

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22
Q

What is Amazon Textract?

A

Amazon Textract is a machine learning service that automatically extracts text, handwriting, and data from scanned documents. Amazon Textract goes beyond basic optical character recognition (OCR) to identify, understand, and extract data from forms and tables.

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23
Q

What is Amazon Transcribe?

A

Amazon Transcribe is a speech recognition service that uses machine learning models to convert audio to text. You can use Amazon Transcribe as a standalone transcription service. Additionally, you can use Amazon Transcribe to add speech-to-text capabilities to any application. Transcribe does not analyze documents or generate insights from the text.

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24
Q

What is Amazon Comprehend?

A

Amazon Comprehend is a natural language processing (NLP) service that uses machine learning models to uncover information in unstructured data. Amazon Comprehend develops insights by recognizing the entities, key phrases, language, sentiments, and other common elements in a document.

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25
Q

Which AWS service can be used to provide an on-demand, cloud-based contact center?

A

Amazon Connect

Amazon Connect is a cloud-based contact center service that you can use to set up an on-demand contact center.

26
Q

What is AWS Managed Services?

A

AWS Managed Services (AMS) provides a number of operational services to manage a customer’s AWS infrastructure and services on their behalf.

27
Q

Which AWS services or features support data replication across AWS Regions? (Select TWO.)
a. Amazon S3
b. Amazon EBS
c. Amazon EC2 instance store
d. AWS Storage Gateway
e. Amazon RDS

A

a. Amazon S3 & e. Amazon RDS
Amazon S3 supports Cross-Region Replication. With Cross-Region Replication, you designate a destination S3 bucket in another Region. When Cross-Region Replication is turned on, any new object that is uploaded will be replicated to the destination S3 bucket.

You can use Amazon RDS to host relational databases on AWS. One RDS DB instance resides in a single Region. With Amazon RDS, you can create read replicas across Regions. Amazon RDS replicates any data from the primary DB instance to the read replica across Regions.

28
Q

What is AWS Storage Gateway?

A

Storage Gateway connects an on-premises software appliance with cloud-based storage. Storage Gateway provides integration with data security features between your on-premises IT environment and AWS storage infrastructure such as Amazon S3. Storage Gateway does not directly support Cross-Region Replication.

29
Q

What is Amazon ECS Instance store?

A

An EC2 instance store is block storage that is attached to an EC2 instance. This storage is located on disks that are physically attached to the host computer. An instance store is ideal for temporary storage of information that changes frequently. The data that is stored on an instance store is temporary. There is no built-in mechanism to replicate data across Regions.

30
Q

What are benefits of running a database on Amazon RDS compared to an on-premises database?

A

RDS provides backups by default. When using Amazon RDS, you can decide how frequently backups are completed. However, AWS manages the backing up of the data and the storing of the backup. Backups are automated based on the frequency that you define.

RDS database compute capacity can be easily scaled. Amazon RDS database instances can be scaled up or down based on demand. This can often be completed with little to no downtime. A database instance can also be scaled vertically to give it more memory or compute capacity.

31
Q

What should AWS edge locations be used for? (Select TWO.)
a. Hosting applications and databases
b. Delivering content closer to users
c. Running NoSQL database cashing services
d. Reducing load on Amazon EC2 based web servers
e. Sending notifications messages to end users

A

b. Delivering content closer to users & d. Reducing load on Amazon EC2 based web servers

AWS edge locations are used to host the content delivery network (CDN) service Amazon CloudFront, which gives you the ability to cache frequently accessed data closer to end users. This ability can reduce latency in data retrieval times for end users all over the world because the edge locations are often closer to the end users than the region in which the data is hosted.

When data is cached at an edge location and an end user requests data, the request is first routed to the edge location. If the data is found at the edge location, then the data is returned to the end user and the request never reaches the back-end server. This reduces the load on back-end servers because some requests are being offloaded to the edge location.

32
Q

A business-critical application requires multi-Region deployment to meet availability service level agreements (SLAs).

Which AWS service or feature should be used for network routing and load balancing for this application?

A

Amazon Route 53
Route 53 is a DNS service that can route traffic to resources. You can use Route 53 to implement traffic routing across multiple Regions to meet availability SLAs.

33
Q

What is Amazon API Gateway?

A

You can use API Gateway to create and manage REST, HTTP, and WebSocket APIs.

34
Q

What is Application Load Balancer? (ALB)

A

ALBs can distribute traffic to different resources within a Region. ALBs are a regional service. ALBs cannot route traffic to different Regions.

35
Q

What is AWS Site to Site VPN?

A

You can use Site-to-Site VPN to establish a secure and private connection from your on-premises networks to the AWS Cloud.
Site-to-Site VPN creates an encrypted network path between your on-premises network and your AWS Cloud network. This connection between your on-premises network and your AWS Cloud network uses the internet.

36
Q

Which AWS service can analyze a set of documents to generate valuable insights from text?

A

Amazon Comprehend
Amazon Comprehend uses a pre-trained model to gain insights about the content of documents. You can use Amazon Comprehend to analyze documents and generate valuable insights from the text.

37
Q

A company requires an encrypted connection from the company’s on-premises data center to AWS. The connection must use the company’s existing internet connection.

Which solution will meet these requirements?

A

AWS Site to Site VPN
Site-to-Site VPN creates an encrypted network path between your on-premises network and your AWS Cloud network. This connection between your on-premises network and your AWS Cloud network uses the internet.

38
Q

A company needs to securely deliver data, videos, applications, and APIs to users globally with low latency.

Which AWS service will meet this requirement?

A

Amazon CloudFront
CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to users globally with low latency and high transfer speeds.

39
Q

A company would like to host its MySQL databases on AWS and maintain full control over the operating system, database installation, and configuration.

Which AWS service should the company use to host the databases?

A

Amazon EC2
Amazon EC2 is a service that provides resizable compute capacity in the AWS Cloud. You can use Amazon EC2 to host a MySQL database similar to one that runs on premises. The company will have full control over the operating system, database installation, and configuration.

40
Q

A web developer has limited knowledge of AWS networking services such as Amazon VPC, Elastic Load Balancing, and Auto Scaling, but wants to host a highly available web application.

Which AWS service would automatically handle the deployment and reduce the complexity for the developer?

A

AWS Elastic Beanstalk
Elastic Beanstalk gives you the ability to deploy and manage web applications in AWS Cloud without having to understand or manage the underlying infrastructure.

41
Q

What is AWS CodeDeploy?

A

CodeDeploy is a deployment service used to automate application deployment on compute resources. However, the developer is still required to have knowledge of how to manage the underlying infrastructure and AWS networking services.

42
Q

What is AWS Resource Access Manager (RAM)

A

AWS Resource Access Manager (AWS RAM) is a service that gives you the ability to securely share AWS resources with any AWS account or within your AWS Organization. AWS RAM is not used to host web applications.

43
Q

What is AWS CloudFormation

A

CloudFormation is a service used to model, provision, and manage AWS resources with infrastructure as code. CloudFormation requires knowledge of networking services to provision the resources.

44
Q

What are benefits in accessing a service such as Amazon S3 from the console or running the commands in the AWS CLI?

A

Using aws s3 commands in the AWS CLI helps to manage S3 objects.

45
Q

What do you use to connect public Amazon EC2 instances in a public subnet to the public internet?

A

Internet gateway.

46
Q

If you needed to use your existing server-bound software licenses, would you choose a dedicated host or shared host?

A

A dedicated host.

47
Q

Are Amazon EC2 instances an Availability Zone resilient service or a Regional resilient service?

A

Amazon EC2 instances are an Availability Zone resilient service.

48
Q

What is the local storage of an Amazon EC2 instance?

A

Instance Store.

49
Q

What type of storage would you choose if you needed persistent storage for your Amazon EC2 instance?

A

Amazon Elastic Block Store (Amazon EBS).

50
Q

Where would you check to find the Amazon EC2 instance ID, instance profile permissions, and kernel information?

A

You can get the instance ID, public keys, public IP address, and other information from the instance metadata using http://169.254.169.254/latest/meta-data/.

51
Q

Which AWS Snow Family service would you choose to transfer hundreds of petabytes of data and exabyte scale data sets into AWS?AWS Snowmobile.

A

AWS Snowmobile.

52
Q

Is an Amazon Virtual Private Cloud (Amazon VPC) a globally resilient service or a Regional resilient service?

A

Amazon VPC is a regional resilient service.

53
Q

Are network access control lists (network ACLs) stateful or stateless?

A

Network ACLs are stateless.

54
Q

Are security groups stateful or stateless?

A

Security groups are stateful.

55
Q

Can you use a NAT gateway in a private subnet?

A

No, NAT gateways sit in a public subnet to allow private resources access to the internet or the AWS public zones.

56
Q

What type of storage does Amazon S3 offer? Block, file, or object?

A

Object storage.

57
Q

What type of storage does Amazon EBS offer? Block, file, or object?

A

Block storage.

58
Q

What type of storage does Amazon EFS offer? Block, file, or object?

A

File storage.

59
Q

What type of level service is Amazon Rekogintion?

A

Amazon Rekognition is an artificial intelligence (AI) service level.

60
Q

What type of level service is Amazon Sagemaker?

A

Amazon Sagemaker is a machine learning service level.

61
Q

What AWS analytic service can help you identify personable identifiable information (PII)?

A

Amazon Macie.

62
Q

What AWS analytic service is a query service?

A

Amazon Athena.

63
Q

Which AWS service would you use for inter-process and services messaging?

A

Amazon SQS.

AWS Cloud Practitioner 2024 (4 decks)

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