AWS CD-A | Practice Quiz 02
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Question 1 of 56
1. Question
You are writing to a DynamoDB table and receive the following exception:” ProvisionedThroughputExceededException”. though according to your Cloudwatch metrics for the table, you are not exceeding your provisioned throughput. What could be an explanation for this?
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Question 2 of 56
2. Question
How can you secure data at rest on an EBS volume?
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Question 3 of 56
3. Question
Which of the following statements about SQS is true?
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Question 4 of 56
4. Question
What is one key difference between an Amazon EBS-backed and an instance-store backed instance?
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Question 5 of 56
5. Question
You run an ad-supported photo sharing website using S3 to serve photos to visitors of your site. At some point you find out that other sites have been linking to the photos on your site, causing loss to your business. What is an effective method to mitigate this?
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Question 6 of 56
6. Question
Which statements about DynamoDB are true? Choose 2 answers
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Question 7 of 56
7. Question
An Amazon S3 bucket, “myawsbucket” is configured with website hosting in Tokyo region, what is the region-specific website endpoint?
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Question 8 of 56
8. Question
You have written an application that uses the Elastic Load Balancing service to spread traffic to several web servers. Your users complain that they are sometimes forced to login again in the middle of using your application, after they have already logged in. This is not behavior you have designed. What is a possible solution to prevent this happening?
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Question 9 of 56
9. Question
system components for scalability The SQS consumers poll the imaging queue as often as possible to keep end-to-end throughput as high as possible. However, Company B is realizing that polling in tight loops is burning CPU cycles and increasing costs with empty responses. How can Company B reduce the number of empty responses?
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Question 10 of 56
10. Question
When using a large Scan operation in DynamoDB, what technique can be used to minimize the impact of a scan on a table’s provisioned throughput?
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Question 11 of 56
11. Question
Which of the following are valid SNS delivery transports? Choose 2 answers
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Question 12 of 56
12. Question
What happens, by default, when one of the resources in a CloudFormation stack cannot be created?
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Question 13 of 56
13. Question
Company C has recently launched an online commerce site for bicycles on AWS. They have a “Product” DynamoDB table that stores details for each bicycle, such as, manufacturer, color, price, quantity and size to display in the online store. Due to customer demand, they want to include an image for each bicycle along with the existing details. Which approach below provides the least impact to provisioned throughput on the “Product” table?
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Question 14 of 56
14. Question
What type of block cipher does Amazon S3 offer for server side encryption?
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Question 15 of 56
15. Question
In AWS, which security aspects are the customer’s responsibility? Choose 4 answers
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Question 16 of 56
16. Question
You attempt to store an object in the US-STANDARD region in Amazon S3, and receive a confirmation that it has been successfully stored. You then immediately make another API call and attempt to read this object. S3 tells you that the object does not exist. What could explain this behavior?
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Question 17 of 56
17. Question
Company C is currently hosting their corporate site in an Amazon S3 bucket with Static
Website Hosting enabled. Currently, when visitors go to http://www.companyc.com the index.html page is returned. Company C now would like a new page welcome.html to be returned when a visitor enters http://www.companyc.com in the browser. Which of the following steps will allow Company C to meet this requirement? Choose 2 answers
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Question 18 of 56
18. Question
Your application is trying to upload a 6 GB file to Simple Storage Service and receive a “Your proposed upload exceeds the maximum allowed object size.” error message. What is a possible solution for this?
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Question 19 of 56
19. Question
A corporate web application is deployed within an Amazon VPC, and is connected to the corporate data center via IPSec VPN. The application must authenticate against the on-premise LDAP server. Once authenticated, logged-in users can only access an S3 keyspace specific to the user. Which two approaches can satisfy the objectives? Choose 2 answers
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Question 20 of 56
20. Question
Which features can be used to restrict access to data in S3? Choose 2 answers
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Question 21 of 56
21. Question
An XML object containing MessageId, UnsubscribeURL, Subject, Message and other values
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Question 22 of 56
22. Question
Which of the following services are key/value stores? Choose 3 answers
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Question 23 of 56
23. Question
Which EC2 API call would you use to retrieve a list of Amazon Machine Images (AMIs)?
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Question 24 of 56
24. Question
Which of the following platforms are supported by Elastic Beanstalk? Choose 2 answers
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Question 25 of 56
25. Question
What is the maximum number of S3 Buckets available per AWS account?
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Question 26 of 56
26. Question
Which code snippet below returns the URL of a load balanced web site created in CloudFormation with an AWS::ElasticLoadBalancing::LoadBalancer resource name “ElasticLoad Balancer”?
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Question 27 of 56
27. Question
If a message is retrieved from a queue in Amazon SQS, how long is the message inaccessible to other users by default?
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Question 28 of 56
28. Question
When uploading an object, what request header can be explicitly specified in a request to Amazon S3 to encrypt object data when saved on the server side?
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Question 29 of 56
29. Question
A meteorological system monitors 600 temperature gauges, obtaining temperature samples every minute and saving each sample to a DynamoDB table. Each sample involves writing 1K of data and the writes are evenly distributed over time. How much write throughput is required for the target table?
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Question 30 of 56
30. Question
You are inserting 1000 new items every second in a DynamoDB table. Once an hour these items are analyzed and then are no longer needed. You need to minimize provisioned throughput, storage, and API calls. Given these requirements, what is the most efficient way to manage these Items after the analysis?
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Question 31 of 56
31. Question
A security system monitors 3000 cameras, saving image metadata every 30 seconds to an Amazon DynamoDB table. Each sample involves writing 512 bytes of data, and the writes are evenly distributed over time. How much write throughput is required for the target table?
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Question 32 of 56
32. Question
Which of the following statements about SWF are true? Choose 3 answers
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Question 33 of 56
33. Question
In DynamoDB, what type of HTTP response codes indicate that a problem was found with the client request sent to the service?
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Question 34 of 56
34. Question
Which DynamoDB limits can be raised by contacting AWS support? Choose 2 answers
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Question 35 of 56
35. Question
What item operation allows the retrieval of multiple items from a DynamoDB table in a single API call?
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Question 36 of 56
36. Question
Which of the following services are included at no additional cost with the use of the AWS platform? Choose 2 answers
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Question 37 of 56
37. Question
How is provisioned throughput affected by the chosen consistency model when reading data from a DynamoDB table?
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Question 38 of 56
38. Question
Which of the following items are required to allow an application deployed on an EC2 instance to write data to a DynamoDB table? Assume that no security Keys are allowed to be stored on the EC2 instance. Choose 2 answers
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Question 39 of 56
39. Question
When a Simple Queue Service message triggers a task that takes 5 minutes to complete, which process below will result in successful processing of the message and remove it from the queue while minimizing the chances of duplicate processing?
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Question 40 of 56
40. Question
Company D is running their corporate website on Amazon S3 accessed from http//www.companyd.com. Their marketing team has published new web fonts to a separate S3 bucket accessed by the S3 endpoint https://s3-us-west1. amazonaws.com/cdfonts. While testing the new web fonts, Company D recognized the web fonts are being blocked by the browser. What should Company D do to prevent the web fonts from being blocked by the browser?
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Question 41 of 56
41. Question
You have an environment that consists of a public subnet using Amazon VPC and 3 instances that are running in this subnet. These three instances can successfully communicate with other hosts on the Internet. You launch a fourth instance in the same subnet, using the same AMI and security group configuration you used for the others, but find that this instance cannot be accessed from the Internet. What should you do to enable internet access?
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Question 42 of 56
42. Question
Which of the following is chosen as the default region when making an API call with an AWS SDK?
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Question 43 of 56
43. Question
Which of the following are correct statements with policy evaluation logic in AWS Identity and Access Management? Choose 2 answers
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Question 44 of 56
44. Question
Which of the following are valid arguments for an SNS Publish request? Choose 3 answers
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Question 45 of 56
45. Question
After launching an instance that you intend to serve as a NAT (Network Address Translation) device in a public subnet you modify your route tables to have the NAT device be the target of internet bound traffic of your private subnet. When you try and make an outbound connection to the Internet from an instance in the private subnet, you are not successful. Which of the following steps could resolve the issue?
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Question 46 of 56
46. Question
Which of the following programming languages have an officially supported AWS SDK? Choose 2 answers
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Question 47 of 56
47. Question
Which of the following is an example of a good DynamoDB hash key schema for provisioned throughput efficiency?
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Question 48 of 56
48. Question
How can software determine the public and private IP addresses of the Amazon EC2 instance that it is running on?
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Question 49 of 56
49. Question
A startup s photo-sharing site is deployed in a VPC. An ELB distributes web traffic across two subnets. ELB session stickiness is configured to use the AWS-generated session cookie, with a session TTL of 5 minutes. The webserver Auto Scaling Group is configured as: min-size=4, max-size=4. The startups preparing for a public launch, by running load-testing software installed on a single EC2 instance running in us-west-2a. After 60 minutes of load-testing, the webserver logs show: Which recommendations can help ensure load-testing HTTP requests are evenly distributed across the four webservers? Choose 2 answers.
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Question 50 of 56
50. Question
Company A has an S3 bucket containing premier content that they intend to make available to only paid subscribers of their website. The S3 bucket currently has default permissions of all objects being private to prevent inadvertent exposure of the premier content to non-paying website visitors. How can Company A provide only paid subscribers the ability to download a premier content file in the S3 bucket?
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Question 51 of 56
51. Question
What AWS products and features can be deployed by Elastic Beanstalk? Choose 3 answers
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Question 52 of 56
52. Question
You are providing AWS consulting services for a company developing a new mobile application that will be leveraging Amazon SNS Mobile Push for push notifications. In order to send direct notification messages to individual devices each device registration identifier or token needs to be registered with SNS; however, the developers are not sure of the best way to do this. You advise them to:
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Question 53 of 56
53. Question
If an application is storing hourly log files from thousands of instances from a high traffic web site, which naming scheme would give optimal performance on S3?
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Question 54 of 56
54. Question
An application store payroll information nightly in DynamoDB for a large number of employees across hundreds of offices. Item attributes consist of individual name, office identifier, and cumulative daily hours. Managers run reports for ranges of names working in their office. One query is. “Return all Items in this office for names starting with A through E”. Which table configuration will result in the lowest impact on provisioned throughput for this query?
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Question 55 of 56
55. Question
Games-R-Us is launching a new game app for mobile devices. Users will log into the game using their existing Facebook account and the game will record player data and scoring information directly to a DynamoDB table. What is the most secure approach for signing requests to the DynamoDB API?
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Question 56 of 56
56. Question
EC2 instances are launched from Amazon Machine images (AMIs). A given public AMI can:
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