AWS 600-700

600. Which solution provides the FASTEST application response times to frequently accessed data to users in multiple AWS Regions?. A.AWS CloudTrail across multiple Availability Zones. B.Amazon CloudFront to edge locations. C.AWS CloudFormation in multiple regions. D.A virtual private gateway over AWS Direct Connect.

601. Which AWS service is a managed NoSQL database?. A.Amazon Redshift. B.Amazon DynamoDB. C.Amazon Aurora. D.Amazon RDS for MariaDB.

602. A company has distributed its workload on both the AWS Cloud and some on-premises servers. What type of architecture is this?. A.Virtual private network. B.Virtual private cloud. C.Hybrid cloud. C.Hybrid cloud.

603. A company is running an ecommerce application hosted in Europe. To decrease latency for users who access the website from other parts of the world, the company would like to cache frequently accessed static content closer to the users. Which AWS service will support these requirements?. A.Amazon ElastiCache. B.Amazon CloudFront. C.Amazon Elastic File System (Amazon EFS). D.Amazon Elastic Block Store (Amazon EBS).

604. Which Amazon EC2 pricing model is the MOST cost efficient for an uninterruptible workload that runs once a year for 24 hours?. A.On-Demand Instances. B.Reserved Instances. C.Spot Instances. D.Dedicated Instances.

605. Which AWS service automatically handles application health monitoring?. A.Amazon API Gateway. B.AWS Elastic Beanstalk. C.AWS Lambda. D.AWS Config.

606. Which statement explains the benefit of agility in the AWS Cloud?. A. Agility gives users the ability to host applications in multiple AWS Regions around the world. B. Agility gives users the ability to pay upfront to reduce cost. C. Agility provides customizable physical hardware at the lowest possible cost. D. Agility provides the means for users to provision resources in minutes.

607. Which AWS service will help users determine if an application running on an Amazon EC2 instance has sufficient CPU capacity?. A.Amazon CloudWatch. B.AWS Config. AWS CloudTrail. D.Amazon Inspector.

608. Which of the following is an AWS-managed compute service?. A.Amazon SWF. B.Amazon EC2. C.AWS Lambda. D.Amazon Aurora.

609. Which AWS services provide a way to extend an on-premises architecture to the AWS Cloud? (Choose two.). A.Amazon EBS. B.AWS Direct Connect. C.Amazon CloudFront. D.AWS Storage Gateway. E.Amazon Connect.

610. What can AWS edge locations be used for? (Choose two.). A.Hosting applications. B.Delivering content closer to users. C.Running NoSQL database caching services. D.Reducing traffic on the server by caching responses. E.Sending notification messages to end users.

611. What AWS service would be used to centrally manage AWS access across multiple accounts?. A.AWS Service Catalog. B.AWS Config. C.AWS Trusted Advisor. D.AWS Organizations.

612. A company wants to route its traffic directly and privately to a VPC without going over the public internet. Which connectivity option provides this capability?. A. AWS VPN. B. AWS Direct Connect. C.VPC NAT gateway. D.VPC internet gateway.

613. A company is running a self-managed Oracle database directly on Amazon EC2 for its steady-state database. The company wants to reduce compute costs. Which option should the company use to maximize savings over a 3-year term?. A.EC2 Dedicated Instances. B.EC2 Spot Instances. C.EC2 Reserved Instances. D.EC2 On-Demand Instances.

614. Web servers running on Amazon EC2 access a legacy application running in a corporate data center. What term would describe this model?. A.Cloud-native. B. Partner network. C.Hybrid architecture. D.Infrastructure as a service.

615. Which of the following AWS Cloud services can be used to run a customer-managed relational database?. A.Amazon EC2. B.Amazon Route 53. C.Amazon ElastiCache. D.Amazon DynamoDB.

616. Which of the following is an AWS best practice for managing an AWS account root user?. A.Keep the root user password with the security team. B.Enable multi-factor authentication (MFA) for the root user. C.Create an access key for the root user. D.Keep the root user password consistent for compliance purposes.

617. How would an AWS customer easily apply common access controls to a large set of users?. Apply an IAM policy to an IAM group. B.Apply an IAM policy to an IAM role. C.Apply the same IAM policy to all IAM users with access to the same workload. D.Apply an IAM policy to an Amazon Cognito user pool.

618. How can a user protect against AWS service disruptions if a natural disaster affects an entire geographic area?. A.Deploy applications across multiple Availability Zones within an AWS Region. B.Use a hybrid cloud computing deployment model within the geographic area. C.Deploy applications across multiple AWS Regions. D.Store application artifacts using AWS Artifact and replicate them across multiple AWS Regions.

619. According to the AWS shared responsibility model, what is AWS responsible for?. A.Configuring Amazon VPC. B.Managing application code. C.Maintaining application traffic. D.Managing the network infrastructure.

620. Amazon Route 53 enables users to: A.encrypt data in transit. B.register DNS domain names. C.generate and manage SSL certificates. D.establish a dedicated network connection to AWS.

621. A user should contact the AWS Abuse team to report which situations? (Choose two.). A.A DDoS attack is being made on an AWS resource. B.A SQL injection attack is being made from an IP address that is not an AWS address. C.AWS resources are being used to host objectionable or illegal content. D.A company's resources are being used in a way that is inconsistent with corporate policy. E.A company is receiving HTTPS requests on a web server that is serving HTTP.

622. Which AWS IAM feature allows developers to access AWS services through the AWS CLI?. A.API keys. B.Access keys. C.User names/Passwords. D.SSH keys.

623. How does AWS MOST effectively reduce computing costs for a growing start-up company?. A. It provides on-demand resources for peak usage. B.It automates the provisioning of individual developer environments. C.It automates customer relationship management. D.It implements a fixed monthly computing budget.

624. What does Amazon CloudFront provide?. A.Automatic scaling for all resources to power an application from a single unified interface. B.Secure delivery of data, videos, applications, and APIs to users globally with low latency. C.Ability to directly manage traffic globally through a variety of routing types, including latency-based routing, geo DNS, geoproximity, and weighted round robin. D.Automatic distribution of incoming application traffic across multiple targets, such as Amazon EC2 instances, containers, IP addresses, and AWS Lambda functions.

625. A cloud practitioner needs to obtain AWS compliance reports before migrating an environment to the AWS Cloud. How can these reports be generated?. A.Contact the AWS Compliance team. B.Download the reports from AWS Artifact. C.Open a case with AWS Support. D.Generate the reports with Amazon Macie.

626. Access keys in AWS Identity and Access Management (IAM) are used to: A. log in to the AWS Management Console. B.make programmatic calls to AWS from AWS APIs. C.log in to Amazon EC2 instances. D.authenticate to AWS CodeCommit repositories.

627. Which characteristic of the AWS Cloud helps users eliminate underutilized CPU capacity?. A.Agility. B.Elasticity. C.Reliability. D.Durability.

628. Which AWS service should a cloud practitioner use to identify security vulnerabilities of an AWS account?. A.AWS Secrets Manager. B.Amazon Cognito. C. Amazon Macie. D.AWS Trusted Advisor.

629. Which of the following is the responsibility of AWS?. A.Setting up AWS Identity and Access Management (IAM) users and groups. B.Physically destroying storage media at end of life. C.Patching guest operating systems. D.Configuring security settings on Amazon EC2 instances.

630. Which AWS support plan includes a dedicated Technical Account Manager?. A.Developer. B.Enterprise. C.Business. D.Basic.

631. A company wants to store data with high availability, encrypt the data at rest, and have direct access to the data over the internet. Which AWS service will meet these requirements MOST cost-effectively?. A. Amazon Elastic Block Store (Amazon EBS. B.Amazon S3. C.Amazon Elastic File System (Amazon EFS). D.AWS Storage Gateway.

632. A company has a globally distributed user base. The company needs its application to be highly available and have low latency for end users. Which AWS architectural approach will MOST effectively support these requirements?. A.Single-Region, Multi-AZ architecture. B. Multi-Region, active-active architecture. C.Multi-Region, active-passive architecture. D.Single-Region, Single-AZ architecture.

633. A media company wants to distribute video content to millions of users worldwide over the internet. The company wants to use the AWS global network backbone to distribute cached content with low latency and high data transfer speeds. Which AWS service will meet these requirements?. A.Amazon CloudFront. B.AWS Global Accelerator. C.AWS Direct Connect. D.Amazon Connect.

634. A user has an AWS Business Support plan and requires detailed billing information. Which AWS resource will help?. A.AWS Concierge Support. B.AWS Service Catalog. C.AWS Budgets. D.AWS Cost and Usage Report.

635. Which AWS service offers on-demand access to AWS security and compliance reports?. A.AWS CloudTrail. B.AWS Artifact. C.AWS Health. D.Amazon CloudWatch.

636. A company wants to try a third-party ecommerce solution before deciding to use it long term. Which AWS service or tool will support this effort?. A.AWS Marketplace. B.AWS Partner Network (APN). C.AWS Managed Services. D.AWS Service Catalog.

637. A company wants to set up a highly available workload in AWS with a disaster recovery plan that will allow the company to recover in case of a regional service interruption. Which configuration will meet these requirements?. A.Run on two Availability Zones in one AWS Region, using the additional Availability Zones in the AWS Region for the disaster recovery site. Run on two Availability Zones in one AWS Region, using another AWS Region for the disaster recovery site. C.Run on two Availability Zones in one AWS Region, using a local AWS Region for the disaster recovery site. D.Run across two AWS Regions, using a third AWS Region for the disaster recovery site.

638. Which of the following inspects AWS environments to find opportunities that can save money for users and also improve system performance?. A.AWS Cost Explorer. B.AWS Trusted Advisor. C.Consolidated billing. D.Detailed billing.

639. Which Amazon EC2 pricing model should be used to comply with per-core software license requirements?. A. Dedicated Hosts. B.On-Demand Instances. C.Spot Instances. D.Reserved Instances.

640. Which AWS services may be scaled using AWS Auto Scaling? (Choose two.). A.Amazon EC2. B.Amazon DynamoDB. C.Amazon S3. D.Amazon Route 53. E.Amazon Redshift.

641. Which of the following are economic benefits of using AWS Cloud? (Choose two.). A.Consumption-based pricing. B.Perpetual licenses. C.Economies of scale. D.AWS Enterprise Support at no additional cost. E.Bring-your-own-hardware model.

642. A company requires an isolated environment within AWS for security purposes. Which action can be taken to accomplish this?. A.Create a separate Availability Zone to host the resources. B.Create a separate VPC to host the resources. C.Create a placement group to host the resources. D.Create an AWS Direct Connect connection between the company and AWS.

643. Which of the following security-related actions are available at no cost?. A.Calling AWS Support. B.Contacting AWS Professional Services to request a workshop. C.Accessing forums, blogs, and whitepapers. D.Attending AWS classes at a local university.

644. Which actions represent best practices for using AWS IAM? (Choose two.). A.Configure a strong password policy. B.Share the security credentials among users of AWS accounts who are in the same Region. C.Use access keys to log in to the AWS Management Console. D.Rotate access keys on a regular basis. E. Avoid using IAM roles to delegate permission.

645. One benefit of On-Demand Amazon Elastic Compute Cloud (Amazon EC2) pricing is: A.the ability to bid for a lower hourly cost. B.paying a daily rate regardless of time used. C.paying only for time used. D.pre-paying for instances and paying a lower hourly rate.

646. A user has underutilized on-premises resources. Which AWS Cloud concept can BEST address this issue?. A.High availability. B. Elasticity. C.Security. D.Loose coupling.

647. When architecting cloud applications, which of the following are a key design principle?. A.Use the largest instance possible. B.Provision capacity for peak load. C.Use the Scrum development process. D.Implement elasticity.

648. Which service provides a user the ability to warehouse data in the AWS Cloud?. A.Amazon EFS. B.Amazon Redshift. C.Amazon RDS. D.Amazon VPC.

649. A retail company needs to build a highly available architecture for a new ecommerce platform. The company is using the only AWS services that replicates data across multiple Availability Zones. Which AWS services should the company use to meet this requirement? (Choose two.). A.Amazon EC2. B.Amazon Elastic Block Store (Amazon EBS). C.Amazon Aurora. D.Amazon DynamoDB. E.Amazon Redshift.

650. To avoid malicious compute activities, a user needs a quick way to determine if any Amazon EC2 instances have ports that allow unrestricted access. Which AWS service will support this requirement?. A.VPC Flow Logs. B.AWS WAF. C.AWS CloudTrail. D.AWS Trusted Advisor.

651. A company needs a firewall that will control network connections to and from a single Amazon EC2 instance. This firewall will not control network connections to and from other instances that are in the same subnet. Which AWS service or feature can the company use to meet these requirements?. A.Network ACL. B.AWS WAF. C.Route table. D.Security group.

652. What is AWS Trusted Advisor?. A.It is an AWS staff member who provides recommendations and best practices on how to use AWS. B.It is a network of AWS partners who provide recommendations and best practices on how to use AWS. C.It is an online tool with a set of automated checks that provides recommendations on cost optimization, performance, and security. D.It is another name for AWS Technical Account Managers who provide recommendations on cost optimization, performance, and security.

653. A company is building a business intelligence solution and wants to use dashboards for reporting purposes. Which AWS service can be used?. A.Amazon Redshift. B.Amazon Elasticsearch Service (Amazon ES). C.Amazon QuickSight. D.Amazon Athena.

654. Within the AWS shared responsibility model, who is responsible for security and compliance?. A.The customer is responsible. B.AWS is responsible. C.AWS and the customer share responsibility. D.AWS shares responsibility with the relevant governing body.

655. A user can optimize Amazon EC2 costs by performing which of the following tasks? (Choose two.). A.Implementing Auto Scaling groups to add and remove instances based on demand. B.Creating a policy to restrict IAM users from creating new instances. C.Setting a budget to limit spending on EC2 instances using AWS Budgets. D. Purchasing Reserved Instances. E.Adding EC2 instances to a second AWS Region that is geographically close to the end users.

656. A security officer wants a list of any potential vulnerabilities in Amazon EC2 security groups. Which AWS service should the officer use?. A.Amazon GuardDuty. B.AWS Trusted Advisor. C.AWS CloudTrail. D.AWS Artifact.

657. A company wants to rightsize its infrastructure to control costs. At which points should the company rightsize? (Choose two.). A.Rightsize before a migration occurs to the cloud. B.Rightsize continuously after the cloud onboarding process. C.Rightsize when AWS Support calls and explains that rightsizing is needed. D.Rightsize when seasonal workloads are at their peak. E.Rightsize after purchasing all Reserved Instances.

658. A user wants guidance on possible savings when migrating from on-premises to AWS. Which tool is suitable for this scenario?. A.AWS Budgets. B.Cost Explorer. C.AWS Total Cost of Ownership (TCO) Calculator. D.AWS Well-Architected Tool.

659. Which AWS service can be used to generate alerts based on an estimated monthly bill?. A.AWS Config. B.Amazon CloudWatch. C.AWS X-Ray. D.AWS CloudTrail.

660. Under the AWS shared responsibility model, the customer manages which of the following? (Choose two.). A.Decommissioning of physical storage devices. B. Security group and ACL configuration. C.Patch management of an Amazon RDS instance operating system. D.Controlling physical access to data centers. E.Patch management of an Amazon EC2 instance operating system.

661. Which AWS Cloud benefit eliminates the need for users to try estimating future infrastructure usage?. A.Easy and fast deployment of applications in multiple Regions around the world. B.Security of the AWS Cloud. C.Elasticity of the AWS Cloud. D.Lower variable costs due to massive economies of scale.

662. Which AWS service or feature is available only to users who have an AWS Enterprise Support plan?. A.AWS Trusted Advisor. B.AWS Support case. C.AWS Concierge Support team. D.Amazon Connect.

663. What are the benefits of developing and running a new application in the AWS Cloud compared to on-premises? (Choose two.). A.AWS automatically distributes the data globally for higher durability. B.AWS will take care of operating the application. C.AWS makes it easy to architect for high availability. D.AWS can easily accommodate application demand changes. E.AWS takes care application security patching.

664. A Cloud Practitioner needs to store data for 7 years to meet regulatory requirements. Which AWS service will meet this requirement at the LOWEST cost?. A.Amazon S3. B.AWS Snowball. C.Amazon Redshift. D.Amazon S3 Glacier.

665. A user is planning to migrate an application workload to the AWS Cloud. Which control becomes the responsibility of AWS once the migration is complete?. A.Patching the guest operating system. B.Maintaining physical and environmental controls. C.Protecting communications and maintaining zone security. D.Patching specific applications.

666. A user needs the ability to access as many resources as are needed. The user also needs the ability to scale up and scale down with only a few minutes of notice. Which benefit of the AWS Cloud describes these abilities?. A.Reliability. Economy of scale. C.Elasticity. D.Pay-as-you-go pricing.

667. IT systems should be designed to reduce interdependencies, so that a change or failure in one component does not cascade to other components. This is an example of which principle of cloud architecture design?. A.Scalability. B.Loose coupling. C.Automation.

668. A company has existing software licenses that it wants to bring to AWS, but the licensing model requires licensing physical cores. How can the company meet this requirement in the AWS Cloud?. A. Launch an Amazon EC2 instance with default tenancy. B.Launch an Amazon EC2 instance on a Dedicated Host. C.Create an On-Demand Capacity Reservation. D.Purchase Dedicated Reserved Instances.

669. How can a user achieve high availability for a web application hosted on AWS?. A.Use a Classic Load Balancer across multiple AWS Regions. B.Use an Application Load Balancer across multiple Availability Zones in one AWS Region. C.Set up automatic scaling and load balancing with another application instance running on premises. D.Use the AWS Region with the highest number of Availability Zones.

670. Under the AWS shared responsibility model, customers are responsible for which aspects of security in the cloud? (Choose two.). A.Virtualization Management. B.Hardware management. C.Encryption management. D.Facilities management. E.Firewall management.

671. Which AWS service does AWS Snowball Edge natively support?. A.AWS Server Migration Service (AWS SMS). B.Amazon Aurora. C.AWS Trusted Advisor. D.Amazon EC2.

672. Which pricing model will interrupt a running Amazon EC2 instance if capacity becomes temporarily unavailable?. A.On-Demand Instances. B.Standard Reserved Instances. Spot Instances. D.Convertible Reserved Instances.

673. Which of the following allows AWS users to manage cost allocations for billing?. A.Tagging resources. B.Limiting who can create resources. C.Adding a secondary payment method. D.Running all operations on a single AWS account.

674. A company is considering migrating its applications to AWS. The company wants to compare the cost of running the workload on-premises to running the equivalent workload on the AWS platform. Which tool can be used to perform this comparison?. A.AWS Simple Monthly Calculator. B.AWS Total Cost of Ownership (TCO) Calculator. C.AWS Billing and Cost Management console. D.Cost Explorer.

675. An online retail company recently deployed a production web application. The system administrator needs to block common attack patterns such as SQL injection and cross-site scripting. Which AWS service should the administrator use to address these concerns?. A.AWS WAF. B. Amazon VPC. C.Amazon GuardDuty. D.Amazon CloudWatch.

676. Which Amazon EC2 pricing model adjusts based on supply and demand of EC2 instances?. A.On-Demand Instances. B.Reserved Instances. C.Spot Instances. D.Convertible Reserved Instances.

677. A company uses Amazon DynamoDB in its AWS Cloud architecture. According to the AWS shared responsibility model, which of the following are responsibilities of the company? (Choose two.). A.Operating system patching and upgrades. B.Application of appropriate permissions with IAM tools. Configuration of data encryption options. D.Creation of DynamoDB endpoints. E.Infrastructure provisioning and maintenance.

678. A Cloud Practitioner identifies a billing issue after examining the AWS Cost and Usage report in the AWS Management Console. Which action can be taken to resolve this?. A.Open a detailed case related to billing and submit it to AWS Support for help. B.Upload data describing the issue to a new object in a private Amazon S3 bucket. C.Create a pricing application and deploy it to a right-sized Amazon EC2 instance for more information. D.Proceed with creating a new dashboard in Amazon QuickSight.

679. Which service enables customers to audit and monitor changes in AWS resources?. A.AWS Trusted Advisor. B.Amazon GuardDuty. C.Amazon Inspector. D.AWS Config.

680. Which AWS service would a customer use with a static website to achieve lower latency and high transfer speeds?. A.AWS Lambda. B.Amazon DynamoDB Accelerator. C.Amazon Route 53. D.Amazon CloudFront.

681. Which of the following can be used to identify a specific user who stopped an Amazon EC2 instance?. A.AWS CloudTrail. B.Amazon Inspector. C.Amazon CloudWatch. D.VPC Flow Logs.

682. A company is considering moving its on-premises data center to AWS. What factors should be included in doing a Total Cost of Ownership (TCO) analysis? (Choose two.). A.Amazon EC2 instance availability. B.Power consumption of the data center. C.Labor costs to replace old servers. D.Application developer time. E.Database engine capacity.

683. Using Amazon Elastic Container Service (Amazon ECS) to break down a monolithic architecture into microservices is an example of: A.a loosely coupled architecture. B.a tightly coupled architecture. C.a staeless architecture. D.a stateful architecture.

684. A company has a MySQL database running on a single Amazon EC2 instance. The company now requires higher availability in the event of an outage. Which set of tasks would meet this requirement?. A.Add an Application Load Balancer in front of the EC2 instance. B.Configure EC2 Auto Recovery to move the instance to another Availability Zone. C.Migrate to Amazon RDS and enable Multi-AZ. D.Enable termination protection for the EC2 instance to avoid outages.

685. Which AWS service is used to automate configuration management using Chef and Puppet?. A.AWS Config. B.AWS OpsWorks. C.AWS CloudFormation. D.AWS Systems Manager.

686. Which AWS Cloud benefit is shown by an architecture's ability to withstand failures with minimal downtime?. A.Agility. B.Elasticity. C.Scalability. D.High availability.

687. An Amazon EC2 instance previously used for development is inaccessible and no longer appears in the AWS Management Console. Which AWS service should be used to determine what action made this EC2 instance inaccessible?. A.Amazon CloudWatch Logs. B.AWS Security Hub. C.Amazon Inspector. D.AWS CloudTrail.

688. What is one of the customer's responsibilities according to the AWS shared responsibility model?. A.Virtualization infrastructure. B.Network infrastructure. C.Application security. D.Physical security of hardware.

689. A network engineer needs to establish a dedicated 10 Gbps network connection from an on-premises environment to AWS. Which AWS service or feature should the engineer use?. A.Amazon Route 53. B.AWS Direct Connect. C.AWS PrivateLink. D.AWS VPN.

690. Which managed AWS service provides real-time guidance on AWS security best practices?. A.AWS X-Ray. B.AWS Trusted Advisor. C.Amazon CloudWatch. D.AWS Systems Manager.

691. Which cloud computing benefit does AWS demonstrate with its ability to offer lower variable costs as a result of high purchase volumes?. A.Pay-as-you-go pricing. B.High availability. C.Global reach. D.Economies of scale.

692. Which of the following acts as a virtual firewall at the Amazon EC2 instance level to control traffic for one or more instances?. A.Access keys. B.Virtual private gateways. C.Security groups. D.Access Control Lists (ACL).

693. What are the market advantages of running workloads in the AWS Cloud? (Choose two.). A.Less staff time is required to deploy new workloads. B.Increased time to market for new application features. Higher acquisition costs to support peak workloads. D.Increased productivity for application development teams. E.A decrease in the average server CPU utilization.

694. A startup is working on a new application that needs to go to market quickly. The application requirements may need to be adjusted in the near future. Which of the following is a characteristic of the AWS Cloud that would meet this specific need?. A.Elasticity. B.Reliability. C.Performance. D.Agility.

695. Under the AWS shared responsibility model, what is the customer's responsibility when using an AWS managed service?. A.Physical security of the data centers. B.Server-side encryption. C. Customer data. D.Operating system patching.

696. Which of the following are customer responsibilities under the AWS shared responsibility model? (Choose two.). A.Physical security of AWS facilities. B.Configuration of security groups. C.Encryption of customer data on AWS. D.Management of AWS Lambda infrastructure. E.Management of network throughput of each AWS Region.

697. Which feature adds elasticity to Amazon EC2 instances to handle the changing demand for workloads?. A.Resource groups. B.Lifecycle policies. C.Application Load Balancer. D.Amazon EC2 Auto Scaling.

698. AWS supports which of the following methods to add security to Identity and Access Management (IAM) users? (Choose two.). A.Implementing Amazon Rekognition. B. Using AWS Shield-protected resources. C.Blocking access with Security Groups. D.Using Multi-Factor Authentication (MFA). E.Enforcing password strength and expiration.

699Which statement best describes Elastic Load Balancing?. A. It translates a domain name into an IP address using DNS. B.It distributes incoming application traffic across one or more Amazon EC2 instances. C.It collects metrics on connected Amazon EC2 instances. D.It automatically adjusts the number of Amazon EC2 instances to support incoming traffic.

700. Under the AWS shared responsibility model, which of the following is a customer responsibility?. A.Installing security patches for the Xen and KVM hypervisors. B.Installing operating system patches for Amazon DynamoDB. C.Installing operating system security patches for Amazon EC2 database instances. D.Installing operating system security patches for Amazon RDS database instances.