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NEW QUESTION # 84
A company must ensure that all Amazon EC2 Windows instances that are launched in an AWS account have a third-party agent installed. The company uses AWS Systems Manager, and the Windows instances are tagged appropriately. The company must deploy periodic updates to the third-party agent when the updates become available.
Which combination of steps will meet these requirements with the LEAST operational effort?
(Choose two.)
Answer: A,E
Explanation:
Create a Systems Manager Distributor package for the third-party agent.
Distributor is the native SSM feature for packaging and distributing software like third-party agents, making it easy to manage versions and updates centrally.
Create a Systems Manager State Manager association to run the AWS-ConfigureAWSPackage document. Populate the details of the third-party agent package. Specify instance tags based on the appropriate tag value for Windows.
State Manager ensures that all tagged Windows EC2 instances continuously have the agent installed and updated automatically, providing ongoing compliance with minimal operational effort.
NEW QUESTION # 85
A web application runs on Amazon EC2 instances in the us-east-1 Region and the us-west-2 Region. The instances run behind an Application Load Balancer (ALB) in each Region. An Amazon Route 53 hosted zone controls DNS records.
The instances in us-east-1 are production resources. The instances in us-west-2 are for disaster recovery. EC2 Auto Scaling groups are configured based on the ALBRequestCountPerTarget metric in both Regions.
A SysOps administrator must implement a solution that provides failover from us-east-1 to us-west-2. The instances in us-west-2 must be used only for failover.
Which solution will meet these requirements?
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract of AWS CloudOps Documents:
The requirement is classic active-passive (production in us-east-1, DR in us-west-2 "only for failover"). The most operationally efficient and purpose-built solution is Route 53 failover routing combined with health checks. With failover routing, Route 53 designates one record as PRIMARY (us-east-1) and another as SECONDARY (us-west-2). Route 53 continuously evaluates the health check associated with the primary endpoint (commonly the ALB DNS name or a specific health-check path). If the primary fails, Route 53 automatically returns the secondary record, directing client DNS resolution to the DR region. This ensures us- west-2 is used only when us-east-1 is unhealthy, directly matching the requirement.
Latency routing (Option B) is designed to route users to the region with the lowest latency, which can actively send traffic to us-west-2 even when us-east-1 is healthy-violating the "DR only" constraint. Options C and D introduce custom automation (CloudWatch + Lambda + DNS record updates) that increases operational overhead, adds failure modes, and is unnecessary because Route 53 already provides managed health-check- based failover. Additionally, "EC2 instance terminated" is not a reliable proxy for full application availability, and DNS modification automation is more complex than using native Route 53 failover policies.
References:
Amazon Route 53 Developer Guide - Health checks and failover routing policy AWS Well-Architected Framework - Reliability pillar (failover, DR patterns) AWS SysOps Administrator Study Guide - DNS failover and Route 53 routing policies
NEW QUESTION # 86
A SysOps administrator needs to give an existing AWS Lambda function access to an existing Amazon S3 bucket. Traffic between the Lambda function and the S3 bucket must not use public IP addresses. The Lambda function has been configured to run in a VPC.
Which solution will meet these requirements?
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract of AWS CloudOps Documents:
The requirement is that traffic from a VPC-connected Lambda to Amazon S3 must not use public IP addresses. The AWS-native way to keep traffic private is to use VPC endpoints, which provide private connectivity to supported AWS services without traversing the public internet. Among the options, creating an S3 VPC endpoint is the only approach that satisfies "no public IP addresses" while allowing access to the bucket. Option D is the best match because it explicitly configures an S3 endpoint and directs the Lambda function to use the endpoint-specific DNS name for private routing.
Option C (NAT gateway) is incorrect for this requirement because NAT provides outbound internet access from private subnets and typically uses public IP addressing at the NAT gateway. That violates the intent to avoid public IP paths for S3 traffic. Option A is not applicable because S3 buckets are not placed "inside" a VPC and do not participate in VPC sharing in a way that provides private network paths. Option B (transit gateway) connects VPCs and on-prem networks, but it does not create private service connectivity to S3 by itself; you would still need the correct service endpoint solution for S3 access.
Using a VPC endpoint also aligns with CloudOps best practices: it reduces exposure, simplifies network egress controls, and supports least-privilege access via endpoint policies (where applicable) alongside IAM policies.
References:
Amazon VPC User Guide - VPC endpoints for AWS services and private connectivity AWS Lambda Developer Guide - Lambda networking in a VPC Amazon S3 User Guide - Accessing S3 privately using VPC endpoints
NEW QUESTION # 87
A company plans to host an application on Amazon EC2 instances distributed across multiple Availability Zones. The application must scale to millions of requests per second and handle sudden and volatile traffic patterns. The solution must use a single static IP address per Availability Zone.
Which solution will meet these requirements?
Answer: B
Explanation:
AWS Global Accelerator provides static IP addresses (one per Availability Zone) and routes traffic over the AWS global network to optimal endpoints. It is designed for applications that require extremely high throughput, low latency, and rapid response to traffic spikes.
Global Accelerator automatically routes traffic to healthy endpoints and shifts traffic in response to failures or performance degradation. It supports sudden and volatile traffic patterns and integrates seamlessly with ALBs, NLBs, and EC2 instances.
ALBs and NLBs do not provide static IP addresses per AZ. SQS is not a traffic distribution service.
Therefore, AWS Global Accelerator is the correct solution.
NEW QUESTION # 88
A global company runs a critical primary workload in the us-east-1 Region. The company wants to ensure business continuity with minimal downtime in case of a workload failure. The company wants to replicate the workload to a second AWS Region.
A CloudOps engineer needs a solution that achieves a recovery time objective (RTO) of less than 10 minutes and a zero recovery point objective (RPO) to meet service level agreements.
Which solution will meet these requirements?
Answer: A
Explanation:
According to the AWS Cloud Operations and Disaster Recovery documentation, the active-active multi- Region architecture provides the lowest possible RTO and RPO among all disaster recovery strategies. In this approach, workloads are deployed and actively running in multiple AWS Regions simultaneously. All data is continuously replicated in real time between Regions using fully managed replication services, ensuring zero data loss (zero RPO).
Because both Regions are active and capable of handling requests, failover between them is instantaneous, meeting the RTO of less than 10 minutes. Amazon Route 53 is used with weighted or latency-based routing policies and health checks to automatically route traffic away from an impaired Region to the healthy Region without manual intervention.
In contrast:
* Pilot Light Architecture maintains only a minimal copy of the environment in the secondary Region. It requires time to scale up infrastructure during a disaster, resulting in longer RTO and potential data loss (non-zero RPO).
* Warm Standby Architecture keeps partially running infrastructure in the secondary Region. Although faster than pilot light, it still requires scaling and synchronization, resulting in higher RTO and RPO compared to active-active.
* Backup and Restore (option D) relies on periodic backups and restores data when needed. This approach has the highest RTO and RPO, unsuitable for mission-critical workloads demanding high availability and zero data loss.
Therefore, based on AWS-recommended disaster recovery strategies outlined in the AWS Cloud Operations and Disaster Recovery Guide, the Active-Active Multi-Region architecture (Option C) is the only approach that guarantees RTO < 10 minutes and RPO = 0, achieving continuous availability and business continuity across Regions.
Reference: AWS Cloud Operations and Disaster Recovery Whitepaper - Section: Disaster Recovery Strategies - Multi-Site (Active-Active) Approach; AWS CloudOps Best Practices for Reliability and Business Continuity.
NEW QUESTION # 89
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