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August 2, 2017

Aug 2017 updated: aws solution architect associate exam dumps

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Q261. You have three Amazon EC2 instances with Elastic IP addresses in the US East (Virginia) region, and you want to distribute requests across all three IPs evenly for users for whom US East (Virginia) is the appropriate region.

How many EC2 instances would be sufficient to distribute requests in other regions?

A. 3

B. 9

C. 2

D. 1

Answer:

Explanation:

If your application is running on Amazon EC2 instances in two or more Amazon EC2 regions, and if you have more than one Amazon EC2 instance in one or more regions, you can use latency-based routing to route traffic to the correct region and then use weighted resource record sets to route traffic to instances within the region based on weights that you specify.

For example, suppose you have three Amazon EC2 instances with Elastic IP addresses in the US East (Virginia) region and you want to distribute requests across all three IPs evenly for users for whom US East (Virginia) is the appropriate region. Just one Amazon EC2 instance is sufficient in the other regions, although you can apply the same technique to many regions at once.

Reference: http://docs.aws.amazon.com/Route53/Iatest/DeveIoperGuide/Tutorials.html


Q262. The common use cases for DynamoDB Fine-Grained Access Control (FGAC) are cases in which the end user wants .

A. to change the hash keys of the table directly

B. to check if an IAM policy requires the hash keys of the tables directly

C. to read or modify any codecommit key of the table directly, without a middle-tier service

D. to read or modify the table directly, without a middle-tier service 

Answer: D

Explanation:

FGAC can benefit any application that tracks information in a DynamoDB table, where the end user (or application client acting on behalf of an end user) wants to read or modify the table directly, without a middle-tier service. For instance, a developer of a mobile app named Acme can use FGAC to track the

top score of every Acme user in a DynamoDB table. FGAC allows the application client to modify only the top score for the user that is currently running the application.

Reference: http://aws.amazon.com/dynamodb/faqs/#security_anchor


Q263. You have written a CIoudFormation template that creates I Elastic Load Balancer fronting 2 EC2 Instances. Which section of the template should you edit so that the DNS of the load balancer is returned upon creation of the stack?

A. Resources

B. Outputs

C. Parameters

D. Mappings 

Answer: B

Explanation:

You can use AWS CIoudFormation’s sample templates or create your own templates to describe the AWS resources, and any associated dependencies or runtime parameters, required to run your application.

Reference:

http://docs.aws.amazon.com/AWSCIoudFormation/latest/UserGuide/outputs-section-structure.html


Q264. Which one of the following can't be used as an origin server with Amazon CIoudFront?

A. A web server running in your infrastructure

B. Amazon S3

C. Amazon Glacier

D. A web server running on Amazon EC2 instances 

Answer: C

Explanation:

Amazon CIoudFront is designed to work with Amazon S3 as your origin server, customers can also use Amazon C|oudFront with origin sewers running on Amazon EC2 instances or with any other custom origin.

Reference:  http://docs.aws.amazon.com/AmazonCIoudFront/latest/DeveIoperGuide/distribution-web.html


Q265. You are configuring a new VPC for one of your clients for a cloud migration project, and only a public VPN will be in place. After you created your VPC, you created a new subnet, a new internet gateway, and attached your internet gateway to your VPC. When you launched your first instance into your VPC, you realized that you aren't able to connect to the instance, even if it is configured with an elastic IP. What  should be done to access the instance?

A. A route should be created as 0.0.0.0/0 and your internet gateway as target.

B. Attach another ENI to the instance and connect via new ENI.

C. A NAT instance should be created and all traffic should be forwarded to NAT instance.

D. A NACL should be created that allows all outbound traffic. 

Answer: A

Explanation:

All traffic should be routed via Internet Gateway. So, a route should be created with 0.0.0.0/0 as a source, and your Internet Gateway as your target.

Reference: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Scenario1.htmI


Q266. What is the maximum key length of a tag'?

A. 512 Unicode characters

B. 64 Unicode characters

C. 256 Unicode characters

D. 128 Unicode characters 

Answer: D


Q267. Regarding Amazon Route 53, if your application is running on Amazon EC2 instances in two or more Amazon EC2 regions and if you have more than one Amazon EC2 instance in one or more regions, you can use to route traffic to the correct region and then use to route traffic to instances

within the region, based on probabilities that you specify.

A. weighted-based routing; alias resource record sets

B. latency-based routing; weighted resource record sets

C. weighted-based routing; weighted resource record sets

D. latency-based routing; alias resource record sets 

Answer: B

Explanation:

Regarding Amazon Route 53, if your application is running on Amazon EC2 instances in two or more Amazon EC2 regions, and if you have more than one Amazon EC2 instance in one or more regions, you can use latency-based routing to route traffic to the correct region and then use weighted resource record sets to route traffic to instances within the region based on weights that you specify.

Reference: http://docs.aws.amazon.com/Route53/Iatest/DeveIoperGuide/Tutorials.html


Q268. In Amazon EC2, how many Elastic IP addresses can you have by default?

A. 10

B. 2

C. 5

D. 20

Answer:

Explanation:

The number of Elastic IP addresses you can have in EC2 is 5.

Reference:  http://docs.aws.amazon.com/generaI/latest/gr/aws_service_Iimits.htmI#|imits_ec2


Q269. MySQL installations default to port _. 

A.3306

B.443

C. 80

D. 1158

Answer: A


Q270. A company is running a batch analysis every hour on their main transactional DB. running on an RDS MySQL instance to populate their central Data Warehouse running on Redshift During the execution of the batch their transactional applications are very slow When the batch completes they need to update the top management dashboard with the new data The dashboard is produced by another system running on-premises that is currently started when a manually-sent email notifies that an update is required The on-premises system cannot be modified because is managed by another team.

How would you optimize this scenario to solve performance issues and automate the process as much as possible?

A. Replace RDS with Redshift for the batch analysis and SNS to notify the on-premises system to update the dashboard

B. Replace ROS with Redshift for the oaten analysis and SQS to send a message to the on-premises system to update the dashboard

C. Create an RDS Read Replica for the batch analysis and SNS to notify me on-premises system to update the dashboard

D. Create an RDS Read Replica for the batch analysis and SQS to send a message to the on-premises system to update the dashboard.

Answer: A



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