Latest Amazon SOA-C02 Actual Free Exam Questions & Community Discussion, Page 3

Question #19

A company recently its server infrastructure to Amazon EC2 instances. The company wants to use Amazon CloudWatch metrics to track instance memory utilization and available disk space.
What should a SysOps administrator do to meet these requirements?

A. Install and configure the CloudWatch agent on all the instances.
Attach an IAM role to allow the instances to write logs to CloudWatch.

B. Configure CloudWatch from the AWS Management Console tor all the instances that require monitoring by CloudWatch.
AWS automatically installs and configures the agents far the specified instances.

C. Install and configure the CloudWatch agent on all the instances.
Attach an IAM user to allow the instances to write logs to CloudWatch.

D. Install and configure the CloudWatch agent on all the instances.
Attach the necessary security groups to allow the instances to write logs to CloudWatch.

Discussion 0

Correct Answer: A Vote an answer

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Question #20

A company runs a website from Sydney, Australia. Users in the United States (US) and Europe are reporting that images and videos are taking a time to load. However, local testing in Australia indicates no performance issues. The website has a large amount of static content in the form of images and videos that are stored m Amazon S3.
Which solution will result In the MOST Improvement In the user experience for users In the US and Europe?

A. Create an Amazon CloudFront distribution.
Distribute the static content to the CloudFront edge locations

B. Configure S3 Transfer Acceleration.

C. Create an Amazon API Gateway API in each AWS Region.
Cache the content locally.

D. Configure AWS PrivateLink for Amazon S3.

Discussion 0

Correct Answer: A Vote an answer

Question #21

Users are periodically experiencing slow response times from a relational database. The database runs on a burstable Amazon EC2 instance with a 350 GB General Purpose SSD (gp2) Amazon Elastic Block Store (Amazon EBS) volume. A SysOps administrator monitors the EC2 instance in Amazon CloudWatch and observes that the VolumeReadOps metric drops to less than 10% of its peak value during the periods of slow response.
What should the SysOps administrator do to ensure consistently high performance?

A. Convert the EC2 instance to a memory optimized instance type.

B. Activate unlimited mode on the EC2 instance.

C. Convert the gp2 volume to a Cold HDD (sc1) EBS volume.

D. Convert the gp2 volume to a General Purpose SSD (gp3) EBS volume.

Discussion 0

Correct Answer: B Vote an answer

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Question #22

A SysOps administrator must configure a resilient tier of Amazon EC2 instances for a high performance computing (HPC) application.
The HPC application requires minimum latency between nodes.
Which actions should the SysOps administrator take to meet these requirements? (Choose two.)

A. Create a Multi-AZ Network Load Balancer in front of the EC2 instances.

B. Launch the EC2 instances into a cluster placement group.

C. Launch the EC2 instances into a partition placement group.

D. Place the EC2 instances in an Auto Scaling group within a single subnet.

E. Create an Amazon Elastic File System (Amazon EPS) file system.
Mount the file system to the EC2 instances by using user data.

Discussion 0

Correct Answer: B,D Vote an answer

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Question #23

An Amazon CloudFront distribution has a single Amazon S3 bucket as its origin. A SysOps administrator must ensure that users can access the S3 bucket only through requests from the CloudFront endpoint.
Which solution will meet these requirements?

A. Create an origin access identity (OAI). Assign the OAI to the S3 bucket.
Update the CloudFront origin to include a custom Origin header with the OAI value.

B. Configure Origin Shield in the CloudFront distribution.
Update the CloudFront origin to include a custom Origin_Shield header.

C. Configure S3 Block Public Access on the S3 bucket.
Update the S3 bucket policy to allow the GetObject action from only the CloudFront distribution.

D. Create an origin access identity (OAI). Assign the OAI to the CloudFront distribution.
Update the S3 bucket policy to restrict access to the OAI.

Discussion 0

Correct Answer: D Vote an answer

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Question #24

A web-based application is running in AWS. The application is using a MySQL Amazon RDS database instance for persistence. The application stores transactional data and is read-heavy.
The RDS instance gets busy during the peak usage, which shows the overall application response times.
The SysOps Administrator is asked to improve the read queries performance using a scalable solution.
Which options will meet these requirements? (Choose two.)

A. Enable the RDS database Multi-AZ option

B. Scale up the RDS instance to a larger instance size

C. Create a read replica of the RDS instance

D. Use Amazon DynamoDB instead of RDS

E. Use Amazon ElastiCache to cache read queries

Discussion 0

Correct Answer: C,E Vote an answer

Question #25

A company deploys non-production Amazon EC2 instances in a VPC that has an internet gateway attached. The VPC has a single public subnet and a single private subnet. The EC2 instances in the private subnet cannot communicate outbound to the internet.
Which action will give the EC2 instances in the private subnet the ability to communicate outbound to the internet?

A. Create an entry in the route table that is associated with the private subnet. Specify 0.0.0.0/0 as the destination. Specify the internet gateway as the target.

B. Create a second internet gateway. Associate the second internet gateway with the private subnet.

C. Create a NAT gateway in the private subnet. Route traffic from the NAT gateway to the internet gateway.

D. Create a NAT gateway in the public subnet. Create an entry in the route table that is associated with the private subnet. Specify 0.0.0.0/0 as the destination. Specify the NAT gateway as the target.

Discussion 0

Correct Answer: D Vote an answer

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Question #26

A company has a web application that runs both on-premises and on Amazon EC2 instances.
Over time, both the on-premises servers and EC2 instances begin crashing.
A SysOps Administrator suspects a memory leak in the application and wants a unified method to monitor memory utilization over time.
How can the Administrator track both the EC2 memory utilization and on-premises server memory utilization over time?

A. Use CloudWatch agent for Amazon EC2 instances to report memory utilization to CloudWatch, and set CloudWatch alarms for notifications. Use a third-party application for the on-premises servers.

B. Use Amazon CloudWatch agent for both Amazon EC2 instances and on-premises servers to report MemoryUtilization metics to CloudWatch and set a CloudWatch alarm for notifications.

C. Write a script or use a third-party application to report memory utilization for both EC2 instances and on-premises servers.

D. Configure a load balancer to route traffic to both on-premises servers and EC2 instances, then use CloudWatch as the unified view of the metrics for the load balancer.

Discussion 0

Correct Answer: B Vote an answer

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Question #27

A SysOps administrator is notified that an Amazon EC2 instance has stopped responding.
The AWS Management Console indicates that the system checks are failing.
What should the administrator do first to resolve this issue?

A. Reboot the EC2 instance so it can be launched on a new host.

B. Terminate the EC2 instance and relaunch it.

C. Stop and then start the EC2 instance so that it can be launched on a new host.

D. View the AWS CloudTrail log to investigate what changed on the EC2 instance.

Discussion 0

Correct Answer: C Vote an answer

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