AWS-SysOps Free Practice Test

- (Exam Topic 1)
A SysOps administrator launches an Amazon EC2 Linux instance in a public subnet. When the instance is running, the SysOps administrator obtains the public IP address and attempts to remotely connect to the instance multiple times. However, the SysOps administrator always receives a timeout error.
Which action will allow the SysOps administrator to remotely connect to the instance?

1. A. Add a route table entry in the public subnet for the SysOps administrator's IP address.
2. B. Add an outbound network ACL rule to allow TCP port 22 for the SysOps administrator's IP address.
3. C. Modify the instance security group to allow inbound SSH traffic from the SysOps administrator's IP address.
4. D. Modify the instance security group to allow outbound SSH traffic to the SysOps administrator's IP address.

Correct Answer: C

- (Exam Topic 1)
A SysOps administrator must create a solution that immediately notifies software developers if an AWS Lambda function experiences an error.
Which solution will meet this requirement?

1. A. Create an Amazon Simple Notification Service (Amazon SNS) topic with an email subscription for each develope
2. B. Create an Amazon CloudWatch alarm by using the Errors metric and the Lambda function name as a dimensio
3. C. Configure the alarm to send a notification to the SNS topic when the alarm state reaches ALARM.
4. D. Create an Amazon Simple Notification Service (Amazon SNS) topic with a mobile subscription for each develope
5. E. Create an Amazon EventBridge (Amazon CloudWatch Events) alarm by using LambdaError as the event pattern and the SNS topic name as a resourc
6. F. Configure the alarm to send a notification to the SNS topic when the alarm state reaches ALARM.
7. G. Verify each developer email address in Amazon Simple Email Service (Amazon SES). Create an Amazon CloudWatch rule by using the LambdaError metric and developer email addresses as dimension
8. H. Configure the rule to send an email through Amazon SES when the rule state reaches ALARM.
9. I. Verify each developer mobile phone in Amazon Simple Email Service {Amazon SES). Create an Amazon EventBridge (Amazon CloudWatch Events) rule by using Errors as the event pattern and the Lambda function name as a resourc
10. J. Configure the rule to send a push notification through Amazon SES when the rule state reaches ALARM.

Correct Answer: A

- (Exam Topic 1)
A SysOps administrator is setting up an automated process to recover an Amazon EC2 instance In the event of an underlying hardware failure. The recovered instance must have the same private IP address and the same Elastic IP address that the original instance had. The SysOps team must receive an email notification when the recovery process is initiated.
Which solution will meet these requirements?

1. A. Create an Amazon CloudWatch alarm for the EC2 instance, and specify the SiatusCheckFailedjnstance metri
2. B. Add an EC2 action to the alarm to recover the instanc
3. C. Add an alarm notification to publish a message to an Amazon Simple Notification Service (Amazon SNS> topi
4. D. Subscribe the SysOps team email address to the SNS topic.
5. E. Create an Amazon CloudWatch alarm for the EC2 Instance, and specify the StatusCheckFailed_System metri
6. F. Add an EC2 action to the alarm to recover the instanc
7. G. Add an alarm notification to publish a message to an Amazon Simple Notification Service (Amazon SNS) topi
8. H. Subscribe the SysOps team email address to the SNS topic.
9. I. Create an Auto Scaling group across three different subnets in the same Availability Zone with a minimum, maximum, and desired size of 1. Configure the Auto Seating group to use a launch template that specifies the private IP address and the Elastic IP addres
10. J. Add an activity notification for the Auto Scaling group to send an email message to the SysOps team through Amazon Simple Email Service (Amazon SES).
11. K. Create an Auto Scaling group across three Availability Zones with a minimum, maximum, and desired size of 1. Configure the Auto Scaling group to use a launch template that specifies the private IP addressand the Elastic IP addres
12. L. Add an activity notification for the Auto Scaling group to publish a message to an Amazon Simple Notification Service (Amazon SNS) topi
13. M. Subscribe the SysOps team email address to the SNS topic.

Correct Answer: B
You can create an Amazon CloudWatch alarm that monitors an Amazon EC2 instance and automatically recovers the instance if it becomes impaired due to an underlying hardware failure or a problem that requires AWS involvement to repair. Terminated instances cannot be recovered. A recovered instance is identical to the original instance, including the instance ID, private IP addresses, Elastic IP addresses, and all instance metadata. If the impaired instance has a public IPv4 address, the instance retains the public IPv4 address after recovery. If the impaired instance is in a placement group, the recovered instance runs in the placement group. When the StatusCheckFailed_System alarm is triggered, and the recover action is initiated, you will be notified by the Amazon SNS topic that you selected when you created the alarm and associated the recover action. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-recover.html

- (Exam Topic 1)
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?

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

Correct Answer: B

- (Exam Topic 1)
A company has an application that customers use to search for records on a website. The application's data is stored in an Amazon Aurora DB cluster. The application's usage varies by season and by day of the week.
The website's popularity is increasing, and the website is experiencing slower performance because of increased load on the DB cluster during periods of peak activity. The application logs show that the performance issues occur when users are searching for information. The same search is rarely performed multiple times.
A SysOps administrator must improve the performance of the platform by using a solution that maximizes resource efficiency.
Which solution will meet these requirements?

1. A. Deploy an Amazon ElastiCache for Redis cluster in front of the DB cluste
2. B. Modify the application to check the cache before the application issues new queries to the databas
3. C. Add the results of any queries to the cache.
4. D. Deploy an Aurora Replica for the DB cluste
5. E. Modify the application to use the reader endpoint for search operation
6. F. Use Aurora Auto Scaling to scale the number of replicas based on loa
7. G. Most Voted
8. H. Use Provisioned IOPS on the storage volumes that support the DB cluster to improve performance sufficiently to support the peak load on the application.
9. I. Increase the instance size in the DB cluster to a size that is sufficient to support the peak load on the applicatio
10. J. Use Aurora Auto Scaling to scale the instance size based on load.

Correct Answer: B
https://docs.amazonaws.cn/en_us/AmazonRDS/latest/AuroraUserGuide/aurora-replicas-adding.html