AWS-Certified-Developer-Associate Free Practice Test

- (Exam Topic 3)
A developer is creating an application that is based on an AWS Lambda function. The function uses the AWS SDK to read product price data from an Amazon S3 bucket and to write user information to an Amazon Aurora DB instance The Lambda function runs often, up to a few times each minute To meet performance requirements, the developer must minimize the run duration of the Lambda function
Which actions can help the developer increase the performance? (Select TWO)

1. A. Initialize SDK clients and database connections outside of the function handler
2. B. Read the S3 product price data initially and cache it locally in the /imp directory
3. C. Use environment variables to pass operational parameters to the function.
4. D. Use most-restrictive permissions when setting the 1AM policies for the Lambda 1AM role
5. E. Split the code into different Lambda functions to keep the functions smaller

Correct Answer: AC

A user is trying to understand AWS SNS. To which of the below mentioned end points is SNS unable to send a notification?

1. A. AWS SES
2. B. Email JSON
3. C. AWS SQS
4. D. HTTP

Correct Answer: A
Amazon Simple Notification Service (Amazon SNS) is a fast, filexible, and fully managed push messaging service. Amazon SNS can deliver notifications by SMS text message or email to the Amazon Simple Queue Service (SQS) queues or to any HTTP endpoint. The user can select one the following
transports as part of the subscription requests: "HTTP", "HTTPS","Emai|", "EmaiI-JSON", "SQS", "and SMS".
Reference: http://aws.amazon.com/sns/faqs/

Which of the following are valid SNS delivery transports? Choose 2 answers

1. A. HTTP
2. B. UDP
3. C. SNIS
4. D. DynamoDB
5. E. Named Pipes

Correct Answer: AC

Which features can be used to restrict access to data in S3? Choose 2 answers

1. A. Use S3 Virtual Hosting
2. B. Set an S3 Bucket policy.
3. C. Enable IAM Identity Federation.
4. D. Set an S3 ACL on the bucket or the object.
5. E. Create a C|oudFront distribution for the bucket

Correct Answer: CD

When you create a table with a hash-and-range key, you must define one or more secondary indexes on that table.

1. A. False, hash-range key is another name for secondary index
2. B. False, it is optional
3. C. True
4. D. False, when you have Hash-Range key you cannot define Secondary index

Correct Answer: B
When you create a table with a hash-and-range key in DynamoDB, you can also define one or more secondary indexes on that table.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/LSI.htmI