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Amazon Web Services SOA-C01 - AWS Certified SysOps Administrator - Associate

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Total 263 questions

A SysOps Administrator is responsible for managing a fleet of Amazon EC2 instances. These EC2 instances upload build artifacts to a third-party service. The third-party service recently implemented stncl IP whitelisting that requires all build uploads to come from a single IP address.

What change should the Systems Administrator make to the existing build fleet to comply with this new requirement?

A.

Move all of the EC2 instances behind a NAT gateway and provide the gateway IP address to the service.

B.

Move all of the EC2 instances behind an internet gateway and provide the gateway IP address to the service.

C.

Move all of the EC2 instances into a single Availability Zone and provide the Availability Zone IP address to the service.

D.

Move all of the EC2 instances to a peered VPC and provide the VPC IP address to the service.

A SysOps Administrator has configured health checks on a load balancer. An Amazon EC2 instance attached to this load balancer fails the health check.

What will happen next? (Choose two.)

A.

The load balancer will continue to perform the health check on the EC2 instance.

B.

The EC2 instance will be terminated based on the health check failure.

C.

The EC2 instance will be rebooted.

D.

The load balancer will stop sending traffic to the EC2 instance.

E.

A new EC2 instance will be deployed to replace the unhealthy instance.

An application running on Amazon EC2 allows users to launch batch jobs for data analysis. The jobs are run asynchronously, and the user is notified when they are complete. While multiple jobs can run concurrently, a user’s request need not be fulfilled for up to 24 hours. To run a job, the application launches an additional EC2 instance that performs all the analytics calculations. A job takes between 75 and 110 minutes to complete and cannot be interrupted.

What is the MOST cost-effective way to run this workload?

A.

Run the application on On-Demand EC2 instances. Run the jobs on Spot Instances with a specified duration.

B.

Run the application on Reserved Instance EC2 instances. Run the jobs on AWS Lambda.

C.

Run the application on On-Demand EC2 instances. Run the jobs on On-Demand EC2 instances.

D.

Run the application on Reserved instance EC2 instances. Run the jobs on Spot Instances with a specified duration.

A SysOps Administrator is attempting to use AWS Systems Manager Session Manager to initiate a SSH session with an Amazon EC2 instance running on a custom Linux Amazon Machine Image (AMI) The Administrator cannot find the target instance in the Session Manager console

Which combination of actions with solve this issue? (Select TWO )

A.

Add Systems Manager permissions to the instance profile

B.

Configure the bucket used by Session Manager logs to allow write access

C.

install Systems Manager Agent on the instance

D.

Modify the instance security group to allow inbound traffic on SSH port 22

E.

Reboot the instance with a new SSH key pair named ssm-user

A SysOps Administrator is responsible for a legacy, CPU-heavy application. The application can only be scaled vertically Currently, the application is deployed on a single t2 large Amazon EC2 instance. The system is showing 90% CPU usage and significant performance latency alter a few minutes

What change should be made to alleviate the performance problem?

A.

Change the Amazon EBS volume to Provisioned lOPs

B.

Upgrade to a compute optimized instance

C.

Add additional t2 large instances to the application

D.

Purchase Reserved Instances

A company has attached the following policy to an IAM user.

What of the following actions are allowed for the IAM user?

A.

Amazon RDS DescribeDBInstances action in the us-east-1 Region

B.

Amazon S3 PutObject operation in a bucket named testbucket

C.

Amazon EC2 DescribeInstances action in the us-east-1 Region

D.

Amazon EC2 AttachNetworkInterface action in the eu-west-1 Region

An organization is running multiple applications for their customers. Each application is deployed by running a base AWS CloudFormation template that configures a new VPC. All applications are run in the same AWS account and AWS Region A sysops administrator has noticed that when trying to deploy the same AWS CloudFormation stack, it fails to deploy

What is likely to be the problem?

A.

The Amazon Machine Image used is not available in that region

B.

The AWS CloudFormation template needs to be updated to the latest version

C.

The VPC configuration parameters have changed and must be updated in the template

D.

The account has reached the default limit for VPCs allowed

A SysOps Administrator is receiving alerts related to high CPU utilization of a Memcached-based Amazon ElastiCache cluster.

Which remediation steps should be taken to resolve this issue? (Select TWO.)

A.

Add a larger Amazon EBS volume to the ElastiCache cluster nodes

B.

Add a load balancer to route traffic to the ElastiCache cluster

C.

Add additional worker nodes to the ElastiCache cluster

D.

Create an Auto Scaling group to the ElastiCache cluster

E.

Vertically scale the ElastiCache cluster by changing the node type