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Amazon AWS Certified SysOps Administrator - Associate (SOA-C02) Sample Questions (Q126-Q131):

NEW QUESTION # 126
A company has developed a service that is deployed on a fleet of Linux-based Amazon EC2 instances that are in an Auto Scaling group. The service occasionally fails unexpectedly because of an error in the application code. The company's engineering team determines that resolving the underlying cause of the service failure could take several weeks.
A SysOps administrator needs to create a solution to automate recovery if the service crashes on any of the EC2 instances.
Which solutions will meet this requirement? (Select TWO.)

A. Update the EC2 user data that is specified in the Auto Scaling group's launch template to ensure that the service runs during startup. Redeploy all the EC2 instances in the Auto Scaling group with the updated launch template.
B. Tag the EC2 instances. Create an AWS Lambda function that uses AWS Systems Manager Session Manager to log in to the tagged EC2 instances and restart the service. Schedule the Lambda function to run every 5 minutes.
C. Update the EC2 user data that is specified in the Auto Scaling group's launch template to include a script that runs on a cron schedule every 5 minutes.
D. Install the Amazon CloudWatch agent on the EC2 instances. Configure the CloudWatch agent to monitor the service. Set the CloudWatch action to restart if the service health check fails.
E. Tag the EC2 instances. Use AWS Systems Manager State Manager to create an association that uses the AWS-RunSheIIScript document. Configure the association command with a script that checks if the service is running and that starts the service if the service is not running. For targets, specify the EC2 instance tag. Schedule the association to run every 5 minutes.

Answer: D,E

Explanation:
The requirement is to automate recovery if the service crashes on any of the EC2 instances.
Option A: Install the Amazon CloudWatch agent on the EC2 instances. Configure the CloudWatch agent to monitor the service. Set the CloudWatch action to restart if the service health check fails . This is a valid solution because the CloudWatch agent can be configured to monitor the service and take action (restart the service) if the health check fails .
Option C: Tag the EC2 instances. Use AWS Systems Manager State Manager to create an association that uses the AWS-RunShellScript document. Configure the association command with a script that checks if the service is running and that starts the service if the service is not running. For targets, specify the EC2 instance tag. Schedule the association to run every 5 minutes678. This is a valid solution because AWS Systems Manager State Manager can be used to maintain a consistent state of the EC2 instances. It can run a script to check if the service is running and start the service if it's not running678.
Option B: Tag the EC2 instances. Create an AWS Lambda function that uses AWS Systems Manager Session Manager to log in to the tagged EC2 instances and restart the service. Schedule the Lambda function to run every 5 minutes . This is not a valid solution because AWS Lambda functions are not designed to log in to EC2 instances and restart services. They are used for running serverless applications.
Option D: Update the EC2 user data that is specified in the Auto Scaling group's launch template to include a script that runs on a cron schedule every 5 minutes131415. This is not a valid solution because user data scripts are run only during the launch of an EC2 instance. They are not designed to run on a schedule.
Option E: Update the EC2 user data that is specified in the Auto Scaling group's launch template to ensure that the service runs during startup. Redeploy all the EC2 instances in the Auto Scaling group with the updated launch template131416. This is not a valid solution because while user data can be used to ensure that the service runs during startup, it does not provide a solution for when the service crashes after the EC2 instance has started.

NEW QUESTION # 127
A company uses Amazon S3 to aggregate raw video footage from various media teams across the US. The company recently expanded into new geographies in Europe and Australia. The technical teams located in Europe and Australia reported delays when uploading large video tiles into the destination S3 bucket m toe United States.
What are the MOST cost-effective ways to increase upload speeds into the S3 bucket? (Select TWO.)

A. Use Amazon S3 Transfer Acceleration for file uploads into the destination S3 bucket.
B. Create multiple AWS Site-to-Site VPN connections between AWS and branch offices in Europe and Australia for file uploads into the destination S3 bucket.
C. Use multipart uploads for file uploads into the destination S3 bucket from the branch offices in Europe and Australia.
D. Use AWS Global Accelerator for file uploads into the destination S3 bucket from the branch offices in Europe and Australia.
E. Create multiple AWS Direct Connect connections between AWS and branch offices in Europe and Australia tor He uploads into the destination S3 bucket

Answer: A,C

Explanation:
To increase upload speeds into the S3 bucket from Europe and Australia, the SysOps administrator should use Amazon S3 Transfer Acceleration and multipart uploads. These methods are cost-effective and efficient.
* Amazon S3 Transfer Acceleration:
* This feature speeds up uploads by using the globally distributed edge locations of Amazon CloudFront. Data is routed to the closest edge location, which then forwards the data to the S3 bucket in the destination region.
* This reduces latency and increases the upload speed for large files.
* Multipart Uploads:
* Multipart upload allows you to upload a single large object as a set of parts. Each part is independently uploaded and can be uploaded in parallel.
* This method improves the upload efficiency and resiliency, especially for large files.
* Configuration Steps:
* Enable Transfer Acceleration on the S3 bucket through the AWS Management Console or AWS CLI.
* Implement multipart upload in the application or scripts used for uploading files.
References:
* Amazon S3 Transfer Acceleration
* Multipart Upload Overview

NEW QUESTION # 128
A SysOps administrator noticed that a large number of Elastic IP addresses are being created on the company's AWS account, but they are not being associated with Amazon EC2 instances, and are incurring Elastic IP address charges in the monthly bill.
How can the administrator identify who is creating the Elastic IP addresses?

A. Attach a cost-allocation tag to each requested Elastic IP address with the IAM user name of the developer who creates it.
B. Use Amazon Inspector to get a report of all Elastic IP addresses created in the last 30 days.
C. Query AWS CloudTrail logs by using Amazon Athena to search for Elastic IP address events.
D. Create a CloudWatch alarm on the ElPCreated metric and send an Amazon SNS notification when the alarm triggers.

Answer: C

Explanation:
To identify who is creating the Elastic IP addresses, the following steps should be taken:
Enable CloudTrail Logging:
Ensure AWS CloudTrail is enabled to log all API activities in your AWS account.
Reference:
Create an Athena Table for CloudTrail Logs:
Set up an Athena table that points to the S3 bucket where CloudTrail logs are stored.
Query CloudTrail Logs:
Use Athena to run SQL queries to search for AllocateAddress events, which represent the creation of Elastic IP addresses.
Example Query:
sql
Copy code
SELECT userIdentity.userName, eventTime, eventSource, eventName, requestParameters FROM cloudtrail_logs WHERE eventName = 'AllocateAddress'; Review Results:
Review the results to identify which IAM user or role is creating the Elastic IP addresses.

NEW QUESTION # 129
A company recently migrated its application to a VPC on AWS. An AWS Site-to-Site VPN connection connects the company's on-premises network to the VPC. The application retrieves customer data from another system that resides on premises. The application uses an on-premises DNS server to resolve domain records. After the migration, the application is not able to connect to the customer data because of name resolution errors.
Which solution will give the application the ability to resolve the internal domain names?

A. Set up two AWS Direct Connect connections between the AWS environment and the on-premises network. Set up a link aggregation group (LAG) that includes the two connections. Change the VPC resolver address to point to the on-premises DNS server.
B. Create an Amazon Route 53 public hosted zone for the on-premises domain. Configure the network ACLs to forward DNS requests against the on-premises domain to the Route 53 public hosted zone.
C. Launch EC2 instances in the VPC. On the EC2 instances, deploy a custom DNS forwarder that forwards all DNS requests to the on-premises DNS server. Create an Amazon Route 53 private hosted zone that uses the EC2 instances for name servers.
D. Create an Amazon Route 53 Resolver outbound endpoint. Configure the outbound endpoint to forward DNS queries against the on-premises domain to the on-premises DNS server.

Answer: D

Explanation:
https://docs.aws.amazon.com/zh_tw/Route53/latest/DeveloperGuide/resolver-forwarding-outbound-queries.
html
To give the application the ability to resolve internal domain names, the SysOps administrator should create an Amazon Route 53 Resolver outbound endpoint and configure it to forward DNS queries to the on-premises DNS server.
* Route 53 Resolver Outbound Endpoint:
* An outbound endpoint enables DNS queries to be forwarded from AWS resources in a VPC to an on-premises DNS server.
* Steps to Implement:
* In the Route 53 console, create a new outbound endpoint in the VPC.
* Configure the outbound endpoint with the IP address of the on-premises DNS server.
* Update the VPC DNS settings to use the Route 53 Resolver.
* References:
* Route 53 Resolver Endpoints
* Creating an Outbound Endpoint

NEW QUESTION # 130
A company is running an application on a group of Amazon EC2 instances behind an Application Load Balancer The EC2 instances run across three Availability Zones The company needs to provide the customers with a maximum of two static IP addresses for their applications How should a SysOps administrator meet these requirement?

A. Configure the Application Load Balancer in only two Availability Zones.
B. Add an internal Network Load Balancer behind the Application Load Balancer
C. Create two Elastic IP addresses and assign them to the Application Load Balancer.
D. Add AWS Global Accelerator in front of the Application Load Balancer

Answer: D

Explanation:
AWS Global Accelerator:
* AWS Global Accelerator is a service that improves the availability and performance of your applications with a global user base. It provides static IP addresses that act as a fixed entry point to your application endpoints (such as ALBs).
* Steps:
* Go to the AWS Management Console.
* Navigate to Global Accelerator.
* Click on "Create accelerator."
* Configure the accelerator by providing a name and adding listeners.
* Add your Application Load Balancer as an endpoint.
* Allocate two static IP addresses.
* This setup ensures that your application is accessible via two static IP addresses, fulfilling the requirement.
* AWS Global Accelerator

NEW QUESTION # 131
......

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Amazon AWS Certified SysOps Administrator - Associate (SOA-C02) Sample Questions (Q126-Q131):

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