AWS-Certified-Developer-Associate Free Practice Test

- (Exam Topic 4)
A developer is creating a serverless application that uses an AWS Lambda function. The developer will use AWS Cloud Formation to deploy the application. The application will write logs to Amazon 3loudWatch Logs. The developer has created a log group in a Cloud Format ion template for the application to use. The developer needs to modify the CloudFormation template to make the name of the log [jroup available to the application at runtime.
Which solution will meet this requirement?

1. A. Use the AWS:: Include transform in CloudFormation to provide the log group's name to the application.
2. B. Pass the log group's name to the application in the user data section of the CloudFormation template.
3. C. Use the CloudFormation template's Mappings section to specify the log group's name for the application.
4. D. Pass the log group's Amazon Resource Name (ARN) as an environment variable to the Lambda function.

Correct Answer: C

- (Exam Topic 1)
How can software determine the public and private IP addresses of the Amazon EC2 instance that it is running on?

1. A. Query the appropriate Amazon CloudWatch metric.
2. B. Use ipconfig or ifconfig command.
3. C. Query the local instance userdata.
4. D. Query the local instance metadata.

Correct Answer: D
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-categories.html
Data: local-hostname Descriptions: The private IPv4 DNS hostname of the instance. In cases where multiple network interfaces are present, this refers to the eth0 device (the device for which the device number is 0). Data: public-ipv4 Descriptions: The public IPv4 address. If an Elastic IP address is associated with the instance, the value returned is the Elastic IP address.

- (Exam Topic 3)
A developer is leveraging a Border Gateway Protocol (BGP)-based AWS VPN connection to connect from on-premises to Amazon EC2 instances in the developer's account The developer is able to access an EC2 instance in subnet A, but is unable to access an EC2 instance in subnet B in the same VPC
Which logs can the developer use to verify whether the traffic is reaching subnet B?

1. A. VPN logs
2. B. BGP logs
3. C. VPC Flow Logs
4. D. AWS CloudTrail logs

Correct Answer: C

- (Exam Topic 1)
An application is real-time processing millions of events that are received through an API.
What service could be used to allow multiple consumers to process the data concurrently and MOST cost-effectively?

1. A. Amazon SNS with fanout to an SQS queue for each application
2. B. Amazon SNS with fanout to an SQS FIFO (first-in, firtst-out) queue for each application
3. C. Amazon Kinesis Firehouse
4. D. Amazon Kinesis Streams

Correct Answer: D

- (Exam Topic 2)
A Developer is building a web application that uses Amazon API Gateway to expose an AWS Lambda function to process requests from clients. During testing, the Developer notices that the API Gateway times out even though the Lambda function finishes under the set time limit.
Which of the following API Gateway metrics in Amazon CloudWatch can help the Developer troubleshoot the issue? (Choose two.)

1. A. CacheHitCount
2. B. IntegrationLatency
3. C. CacheMissCount
4. D. Latency
5. E. Count

Correct Answer: BC
https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-metrics-and-dimensions.html