amazon aws certified sysops administrator - associate (soa-c02) practice test
Last exam update: Nov 14 ,2024
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Question 1
A SysOps administrator is managing a web application that runs on Amazon EC2 instances behind an Application Load Balancer (ALB). The instances run in an EC2 Auto Scaling group. The administrator wants to set an alarm for when all target instances associated with the ALB are unhealthy.
Which condition should be used with the alarm?
A.
AWS/ApplicationELB HealthyHostCount <= 0
B.
AWS/ApplicationELB UnhealthyHostCount >= 1
C.
AWS/EC2 StatusCheckFailed <= 0
D.
AWS/EC2 StatusCheckFailed >= 1
Answer:
a
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Question 2
A company has several business units that want to use Amazon EC2. The company wants to require all business units to provision their EC2 instances by using only approved EC2 instance configurations.
What should a SysOps administrator do to implement this requirement?
A.
Create an EC2 instance launch configuration. Allow the business units to launch EC2 instances by specifying this launch configuration in the AWS Management Console.
B.
Develop an IAM policy that limits the business units to provision EC2 instances only. Instruct the business units to launch instances by using an AWS CloudFormation template.
C.
Publish a product and launch constraint role for EC2 instances by using AWS Service Catalog. Allow the business units to perform actions in AWS Service Catalog only.
D.
Share an AWS CloudFormation template with the business units. Instruct the business units to pass a role to AWS CloudFormation to allow the service to manage EC2 instances.
Answer:
c
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Question 3
A SysOps administrator must create a solution that automatically shuts down any Amazon EC2 instances that have less than 10% average CPU utilization for 60 minutes or more.
Which solution will meet this requirement in the MOST operationally efficient manner?
A.
Implement a cron job on each EC2 instance to run once every 60 minutes and calculate the current CPU utilization. Initiate an instance shutdown if CPU utilization is less than 10%.
B.
Implement an Amazon CloudWatch alarm for each EC2 instance to monitor average CPU utilization. Set the period at 1 hour, and set the threshold at 10%. Configure an EC2 action on the alarm to stop the instance.
C.
Install the unified Amazon CloudWatch agent on each EC2 instance, and enable the Basic level predefined metric set. Log CPU utilization every 60 minutes, and initiate an instance shutdown if CPU utilization is less than 10%.
D.
Use AWS Systems Manager Run Command to get CPU utilization from each EC2 instance every 60 minutes. Initiate an instance shutdown if CPU utilization is less than 10%.
Answer:
b
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Question 4
A company hosts a web application on an Amazon EC2 instance in a production VPC. Client connections to the application are failing. A SysOps administrator inspects the VPC flow logs and finds the following entry:
What is a possible cause of these failed connections?
A.
A security group deny rule is blocking traffic on port 443.
B.
The EC2 instance is shut down.
C.
The network ACL is blocking HTTPS traffic.
D.
The VPC has no internet gateway attached.
Answer:
a
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Question 5
A SysOps administrator is creating resources from an AWS. CloudFbrmation template that defines an Auto Scaling group of Amazon EC2 instances. The Auto Scaling group launch template provisions each EC2 instance by using a user data script. The creation of the Auto Scaling group resource is failing because of an error. The wait condition is not receiving the required number of signals.
How should the SysOps administrator resolve this error?
A.
Run cfn-signal at the completion of the user data script.
B.
Modify the EC2 instances security group to allow outgoing traffic on port 443.
C.
Reduce the Auto Scaling group's DesiredCapacity value in the CloudFormation template.
D.
Set the AssociatePublicIpAddress property to True in the Auto Scaling group launch template.
Answer:
a
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Question 6
A SysOps administrator is using AWS Systems Manager Patch Manager to patch a fleet of Amazon EC2 instances. The SysOps administrator has configured a patch baseline and a maintenance window. The SysOps administrator also has used an instance tag to identify which instances to patch. The SysOps administrator must give Systems Manager the ability to access the EC2 instances. Which additional action must the SysOps administrator perform to meet this requirement?
A.
Add an inbound rule to the instances' security group.
B.
Attach an IAM instance profile with access to Systems Manager to the instances.
C.
Create a Systems Manager activation. Then activate the fleet of instances.
D.
Manually specify the instances to patch instead of using tag-based selection.
Answer:
b
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Question 7
A SysOps administrator wants to manage a web server application with AWS Elastic Beanstalk. The Elastic Beanstalk service must maintain full capacity for new deployments at all times. Which deployment policies satisfy this requirement? (Choose two.)
A.
All at once
B.
Immutable
C.
Rebuild
D.
Rolling
E.
Rolling with additional batch
Answer:
be
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Question 8
A company has an application that uses a scheduled AWS Lambda function to retrieve datasets from external sources over the internet. The function is not associated with a VPC. The company is modifying the application to store the information that the Lambda function retrieves on an Amazon RDS DB instance in a private subnet. The VPC has two public subnets and two private subnets.
A SysOps administrator must deploy a solution that allows the Lambda function to access the new database and continue to access the internet.
Which solution meets these requirements?
A.
Create a new Lambda function with VPC access and an Elastic IP address. Attach the function to public subnets in two Availability Zones. Associate a security group with the Elastic IP address. Configure the security group outbound rules to allow Lambda to access the required resources.
B.
Create a new Lambda function with VPC access and two public IP addresses. Attach the function to public subnets in the same Availability Zones that the database uses. Associate a security group with the function. Configure the security group inbound rules to allow Lambda to access the required resources.
C.
Reconfigure the Lambda function for VPC access. Add NAT gateways to the public subnets in the VPAdd route table entries in the private subnets to route through the NAT gateways to the internet. Attach the function to the private subnets that support the database. Associate a security group with the function. Configure the security group outbound rules to allow Lambda to access the internet.
D.
Reconfigure the Lambda function for VPC access. Attach the function to the private subnets. Add route table entries in the private subnets to route through the internet gateway to the internet. Associate a security group with the subnets. Configure the security group inbound rules to allow Lambda to access the required resources through the internet gateway.
Answer:
c
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Question 9
A company manages an application that uses Amazon ElastiCache for Redis with two extra-large nodes spread across two different Availability Zones. The companys IT team discovers that the ElastiCache for Redis cluster has 75% freeable memory. The application must maintain high availability.
What is the MOST cost-effective way to resize the cluster?
A.
Decrease the number of nodes in the ElastiCache for Redis cluster from 2 to 1.
B.
Deploy a new ElastiCache for Redis cluster that uses large node types. Migrate the data from the original cluster to the new cluster. After the process is complete, shut down the original cluster.
C.
Deploy a new ElastiCache for Redis cluster that uses large node types. Take a backup from the original cluster, and restore the backup in the new cluster. After the process is complete, shut down the original cluster.
D.
Perform an online resizing for the ElastiCache for Redis cluster. Change the node types from extra-large nodes to large nodes.
Answer:
a
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Question 10
A company wants to store sensitive financial data within Amazon S3 buckets. The company has a corporate policy that does not allow public read or write access to the buckets. A SysOps administrator must create a solution to automatically remove S3 permissions that allow public read or write access.
Which AWS service should the SysOps administrator use to meet these requirements in the MOST operationally efficient manner?