|AWS Certified SysOps Administrator - Associate (SOA-C02)
|305 Questions Answers With Explanation
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A SysOps administrator creates two VPCs, VPC1 and VPC2, in a company’s AWS accountThe SysOps administrator deploys a Linux Amazon EC2 instance in VPC1 and deploys anAmazon RDS for MySQL DB instance in VPC2. The DB instance is deployed in a privatesubnet. An application that runs on the EC2 instance needs to connect to the database.What should the SysOps administrator do to give the EC2 instance the ability to connect tothe database?
A. Enter the DB instance connection string into the VPC1 route table.
B. Configure VPC peering between the two VPCs.
C. Add the same IPv4 CIDR range for both VPCs.
D. Connect to the DB instance by using the DB instance’s public IP address.
A company has a policy that requires all Amazon EC2 instances to have a specific set oftags. If an EC2 instance does not have the required tags, the noncompliant instance shouldbe terminated.What is the MOST operationally efficient solution that meets these requirements?
A. Create an Amazon EventBridge (Amazon CloudWatch Events) rule to send all EC2instance state changes to an AWS Lambda function to determine if each instance iscompliant. Terminate any noncompliant instances.
B. Create an IAM policy that enforces all EC2 instance tag requirements. If the requiredtags are not in place for an instance, the policy will terminate noncompliant instance.
C. Create an AWS Lambda function to determine if each EC2 instance is compliant andterminate an instance if it is noncompliant. Schedule the Lambda function to invoke every 5minutes.
D. Create an AWS Config rule to check if the required tags are present. If an EC2 instanceis noncompliant, invoke an AWS Systems Manager Automation document to terminate theinstance.
A company has a compliance requirement that no security groups can allow SSH ports tobe open to all IP addresses. A SysOps administrator must implement a solution that willnotify the company's SysOps team when a security group rule violates this requirement.The solution also must remediate the security group rule automatically.Which solution will meet these requirements?
A. Create an Amazon EventBridge (Amazon CloudWatch Events) rule that invokes anAWS Lambda function when a security group changes. Configure the Lambda function toevaluate the security group for compliance, remove all inbound security group rules on allports, and notify the SysOps team if the security group is noncompliant.
B. Create an AWS CloudTrail metric filter for security group changes. Create an AmazonCloudWatch alarm to notify the SysOps team through an Amazon Simple NotificationService (Amazon SNS) topic when (he metric is greater than 0. Subscribe an AWS Lambdafunction to the SNS topic to remediate the security group rule by removing the rule.
C. Activate the AWS Config restricted-ssh managed rule. Add automatic remediation to theAWS Config rule by using the AWS Systems Manager Automation AWSDisablePublicAccessForSecurityGroup runbook. Create an Amazon EventBridge (AmazonCloudWatch Events) rule to notify the SysOps team when the rule is noncompliant.
D. Create an AWS CloudTrail metric filter for security group changes. Create an AmazonCloudWatch alarm for when the metric is greater than 0. Add an AWS Systems Manageraction to the CloudWatch alarm to suspend the security group by using the SystemsManager Automation AWS-DisablePublicAccessForSecurityGroup runbook when the alarmis in ALARM state. Add an Amazon Simple Notification Service (Amazon SNS) topic as asecond target to notify the SysOps team.
A company has an application that is deployed 10 two AWS Regions in an active-passiveconfiguration. The application runs on Amazon EC2 instances behind an Application LoadBalancer (ALB) in each Region. The instances are in an Amazon EC2 Auto Scaling groupin each Region. The application uses an Amazon Route 53 hosted zone (or DNS. ASysOps administrator needs to configure automatic failover to the secondary Region.What should the SysOps administrator do to meet these requirements?
A. Configure Route 53 alias records that point to each ALB. Choose a failover routingpolicy. Set Evaluate Target Health to Yes.
B. Configure CNAME records that point to each ALB. Choose a failover routing policy. SetEvaluate Target Health to Yes.
C. Configure Elastic Load Balancing (ELB) health checks for the Auto Scaling group. Add atarget group to the ALB in the primary Region. Include the EC2 instances in the secondaryRegion astargets.
D. Configure EC2 health checks for the Auto Scaling group. Add a target group to the ALBin the primary Region. Include the EC2 instances in the secondary Region as targets.
A company stores its data in an Amazon S3 bucket. The company is required to classifythe data and find any sensitive personal information in its S3 files.Which solution will meet these requirements?
A. Create an AWS Config rule to discover sensitive personal information in the S3 files andmark them as noncompliant.
B. Create an S3 event-driven artificial intelligence/machine learning (AI/ML) pipeline toclassify sensitive personal information by using Amazon Recognition.
C. Enable Amazon GuardDuty. Configure S3 protection to monitor all data inside AmazonS3.
D. Enable Amazon Macie. Create a discovery job that uses the managed data identifier.
A company has an application that customers use to search for records on a website. Theapplication's data is stored in an Amazon Aurora DB cluster. The application's usage variesby season and by day of the week.The website's popularity is increasing, and the website is experiencing slower performancebecause of increased load on the DB cluster during periods of peak activity. Theapplication logs show that the performance issues occur when users are searching forinformation. The same search is rarely performed multiple times.A SysOps administrator must improve the performance of the platform by using a solutionthat maximizes resource efficiency.Which solution will meet these requirements?
A. Deploy an Amazon ElastiCache for Redis cluster in front of the DB cluster. Modify theapplication to check the cache before the application issues new queries to the database.Add the results of any queries to the cache.
B. Deploy an Aurora Replica for the DB cluster. Modify the application to use the readerendpoint for search operations. Use Aurora Auto Scaling to scale the number of replicasbased on load. Most Voted
C. Use Provisioned IOPS on the storage volumes that support the DB cluster to improveperformance sufficiently to support the peak load on the application.
D. Increase the instance size in the DB cluster to a size that is sufficient to support the peak load on the application. Use Aurora Auto Scaling to scale the instance size based on load.
A company’s reporting job that used to run in 15 minutes is now taking an hour to run. Anapplication generates the reports. The application runs on Amazon EC2 instances andextracts data from an Amazon RDS for MySQL database.A SysOps administrator checks the Amazon CloudWatch dashboard for the RDS instanceand notices that the Read IOPS metrics are high, even when the reports are not running.The SysOps administrator needs to improve the performance and the availability of theRDS instance.Which solution will meet these requirements?
A. Configure an Amazon ElastiCache cluster in front of the RDS instance. Update thereporting job to query the ElastiCache cluster.
B. Deploy an RDS read replica. Update the reporting job to query the reader endpoint.
C. Create an Amazon CloudFront distribution. Set the RDS instance as the origin. Updatethe reporting job to query the CloudFront distribution.
D. Increase the size of the RDS instance.
A Sysops administrator needs to configure automatic rotation for Amazon RDS databasecredentials. The credentials must rotate every 30 days. The solution must integrate withAmazon RDS.Which solution will meet these requirements with the LEAST operational overhead?
A. Store the credentials in AWS Systems Manager Parameter Store as a secure string.Configure automatic rotation with a rotation interval of 30 days.
B. Store the credentials in AWS Secrets Manager. Configure automatic rotation with arotation interval of 30 days.
C. Store the credentials in a file in an Amazon S3 bucket. Deploy an AWS Lambda functionto automatically rotate the credentials every 30 days.
D. Store the credentials in AWS Secrets Manager. Deploy an AWS Lambda function toautomatically rotate the credentials every 30 days.
A company updates its security policy to clarify cloud hosting arrangements for regulatedworkloads. Workloads that are identified as sensitive must run on hardware that is notshared with other customers or with other AWS accounts within the company.Which solution will ensure compliance with this policy?
A. Deploy workloads only to Dedicated Hosts.
B. Deploy workloads only to Dedicated Instances.
C. Deploy workloads only to Reserved Instances.
D. Place all instances in a dedicated placement group.
A company is implementing a monitoring solution that is based on machine learning. Themonitoring solution consumes Amazon EventBridge (Amazon CloudWatch Events) eventsthat are generated by Amazon EC2 Auto Scaling. The monitoring solution providesdetection of anomalous behavior such as unanticipated scaling events and is configured asan EventBridge (CloudWatch Events) API destination.During initial testing, the company discovers that the monitoring solution is not receivingevents. However, Amazon CloudWatch is showing that the EventBridge (CloudWatchEvents) rule is being invoked. A SysOps administrator must implement a solution toretrieve client error details to help resolve this issue.Which solution will meet these requirements with the LEAST operational effort?
A. Create an EventBridge (CloudWatch Events) archive for the event pattern to replay theevents. Increase the logging on the monitoring solution. Use replay to invoke themonitoring solution. Examine the error details.
B. Add an Amazon Simple Queue Service (Amazon SQS) standard queue as a dead-letterqueue for the target. Process the messages in the dead-letter queue to retrieve errordetails.
C. Create a second EventBridge (CloudWatch Events) rule for the same event pattern totarget an AWS Lambda function. Configure the Lambda function to invoke the monitoringsolution and to record the results to Amazon CloudWatch Logs. Examine the errors in thelogs.
D. Configure the EventBridge (CloudWatch Events) rule to send error messages to anAmazon Simple Notification Service (Amazon SNS) topic.
A company is hosting applications on Amazon EC2 instances. The company is hosting adatabase on an Amazon RDS for PostgreSQL DB instance. The company requires allconnections to the DB instance to be encrypted.What should a SysOps administrator do to meet this requirement?
A. Allow SSL connections to the database by using an inbound security group rule.
B. Encrypt the database by using an AWS Key Management Service (AWS KMS)encryption key.
C. Enforce SSL connections to the database by using a custom parameter group.
D. Patch the database with SSL/TLS by using a custom PostgreSQL extension.
A company needs to take an inventory of applications that are running on multiple AmazonEC2 instances. The company has configured users and roles with the appropriatepermissions for AWS Systems Manager. An updated version of Systems Manager Agenthas been installed and is running on every instance. While configuring an inventorycollection, a SysOps administrator discovers that not all the instances in a single subnetare managed by Systems Manager.What must the SysOps administrator do to fix this issue?
A. Ensure that all the EC2 instances have the correct tags for Systems Manager access.
B. Configure AWS Identity and Access Management Access Analyzer to determine andautomatically remediate the issue.
C. Ensure that all the EC2 instances have an instance profile with Systems Manageraccess.
D. Configure Systems Manager to use an interface VPC endpoint.
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. Launch EC2 instances in the VPC. On the EC2 instances, deploy a custom DNSforwarder that forwards all DNS requests to the on-premises DNS server. Create anAmazon Route 53 private hosted zone that uses the EC2 instances for name servers.
B. Create an Amazon Route 53 Resolver outbound endpoint. Configure the outboundendpoint to forward DNS queries against the on-premises domain to the on-premises DNSserver.
C. Set up two AWS Direct Connect connections between the AWS environment and theon-premises network. Set up a link aggregation group (LAG) that includes the twoconnections. Change the VPC resolver address to point to the on-premises DNS server.
D. Create an Amazon Route 53 public hosted zone for the on-premises domain. Configurethe network ACLs to forward DNS requests against the on-premises domain to the Route53 public hosted zone.
Lee Feb 28, 2024
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