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Guide for AWS Certified Developer - Associate 2018

Quiz AWS Certified Developer - Associate 2018

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/ 10

Quiz

1/10
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
Select the answer
2 correct answers
A.
Upload an html page named welcome.html to their S3 bucket
B.
Create a welcome subfolder in their S3 bucket
C.
Set the Index Document property to welcome.html
D.
Move the index.html page to a welcome subfolder
E.
Set the Error Document property to welcome.html

Quiz

2/10
What type of block cipher does Amazon S3 offer for server side encryption?
Select the answer
1 correct answer
A.
Triple DES
B.
Advanced Encryption Standard
C.
Blowfish
D.
RC5

Quiz

3/10
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?
Select the answer
1 correct answer
A.
Sequential
B.
instanceID_log-HH-DD-MM-YYYY
C.
instanceID_log-YYYY-MM-DD-HH
D.
HH-DD-MM-YYYY-log_instanceID
E.
YYYY-MM-DD-HH-log_instanceID

Quiz

4/10
Which of the following statements about SQS is true?
Select the answer
1 correct answer
A.
Messages will be delivered exactly once and messages will be delivered in First in, First out order
B.
Messages will be delivered exactly once and message delivery order is indeterminate
C.
Messages will be delivered one or more times and messages will be delivered in First in, First out
order
D.
Messages will be delivered one or more times and message delivery order is indeterminate

Quiz

5/10
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
Select the answer
2 correct answers
A.
The application authenticates against LDAP. The application then calls the IAM Security Service to
login to IAM using the LDAP credentials. The application can use the IAM temporary credentials to
access the appropriate S3 bucket.
B.
The application authenticates against LDAP, and retrieves the name of an IAM role associated with
the user. The application then calls the IAM Security Token Service to assume that IAM Role. The
application can use the temporary credentials to access the appropriate S3 bucket.
C.
The application authenticates against IAM Security Token Service using the LDAP credentials. The
application uses those temporary AWS security credentials to access the appropriate S3 bucket.
D.
Develop an identity broker which authenticates against LDAP, and then calls IAM Security Token
Service to get IAM federated user credentials. The application calls the identity broker to get IAM
federated user credentials with access to the appropriate S3 bucket.
E.
Develop an identity broker which authenticates against IAM Security Token Service to assume an
IAM Role to get temporary AWS security credentials. The application calls the identity broker to get
AWS temporary security credentials with access to the appropriate S3 bucket.

Quiz

6/10
Company B provides an online image recognition service and utilizes SQS to decouple 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?
Select the answer
1 correct answer
A.
Set the imaging queue visibility Timeout attribute to 20 seconds
B.
Set the Imaging queue ReceiveMessageWaitTimeSeconds attribute to 20 seconds
C.
Set the imaging queue MessageRetentionPeriod attribute to 20 seconds
D.
Set the DelaySeconds parameter of a message to 20 seconds

Quiz

7/10
An Amazon S3 bucket, "myawsbucket” is configured with website hosting in Tokyo region, what is the
region-specific website endpoint?
Select the answer
1 correct answer
A.
www.myawsbucket.ap-northeast-1.amazonaws.com
B.
myawsbucket.s3-website-ap-northeast-1.amazonawscom
C.
myawsbucket.amazonaws.com
D.
myawsbucket.tokyo.amazonaws.com

Quiz

8/10
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?
Select the answer
1 correct answer
A.
Retain the items in a single table
B.
Delete items individually over a 24 hour period
C.
Delete the table and create a new table per hour
D.
Create a new table per hour

Quiz

9/10
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?
Select the answer
1 correct answer
A.
Use instance memory to save session state.
B.
Use instance storage to save session state.
C.
Use EBS to save session state
D.
Use ElastiCache to save session state.
E.
Use Glacier to save session slate.

Quiz

10/10
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?
Select the answer
1 correct answer
A.
Store photos on an EBS volume of the web server
B.
Remove public read access and use signed URLs with expiry dates.
C.
Use CloudFront distributions for static content.
D.
Block the IPs of the offending websites in Security Groups.
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