AWS-SysOps Amazon Exam Questions and Free Practice Test

Question 13

- (Topic 3)
A sysadmin has created the below mentioned policy on an S3 bucket named cloudacademy. The bucket has both AWS.jpg and index.html objects. What does this policy define?
"Statement": [{
"Sid": "Stmt1388811069831",
"Effect": "Allow",
"Principal": { "AWS": "*"},
"Action": [ "s3:GetObjectAcl", "s3:ListBucket", "s3:GetObject"],
"Resource": [ "arn:aws:s3:::cloudacademy/*.jpg]
}]

A. It will make all the objects as well as the bucket public

B. It will throw an error for the wrong action and does not allow to save the policy

C. It will make the AWS.jpg object as public

D. It will make the AWS.jpg as well as the cloudacademy bucket as public

Correct Answer:B

Question 14

- (Topic 2)
A user has developed an application which is required to send the data to a NoSQL database. The user wants to decouple the data sending such that the application keeps processing and sending data but does not wait for an acknowledgement of DB. Which of the below mentioned applications helps in this scenario?

A. AWS Simple Notification Service

B. AWS Simple Workflow

C. AWS Simple Queue Service

D. AWS Simple Query Service

Correct Answer:C

Amazon Simple Queue Service (SQS. is a fast, reliable, scalable, and fully managed message queuing service. SQS provides a simple and cost-effective way to decouple the components of an application. In this case, the user can use AWS SQS to send messages which are received from an application and sent to DB. The application can continue processing data without waiting for any acknowledgement from DB. The user can use SQS to transmit any volume of data without losing messages or requiring other services to always be available.

Question 15

- (Topic 3)
A user has created a subnet in VPC and launched an EC2 instance within it. The user has not selected the option to assign the IP address while launching the instance. The user has 3 elastic IPs and is trying to assign one of the Elastic IPs to the VPC instance from the console. The console does not show any instance in the IP assignment screen. What is a possible reason that the instance is unavailable in the assigned IP console?

A. The IP address may be attached to one of the instances

B. The IP address belongs to a different zone than the subnet zone

C. The user has not created an internet gateway

D. The IP addresses belong to EC2 Classic; so they cannot be assigned to VPC

Correct Answer:D

A Virtual Private Cloud (VPC. is a virtual network dedicated to the user’s AWS account. A user can create a subnet with VPC and launch instances inside that subnet. When the user is launching an instance he needs toselect an option which attaches a public IP to the instance. If the user has not selected the option to attach the public IP then it will only have a private IP when launched. If the user wants to connect to an instance from the internet he should create an elastic IP with VPC. If the elastic IP is a part of EC2 Classic it cannot be assigned to a VPC instance.

Question 16

- (Topic 3)
When you put objects in Amazon S3, what is the indication that an object was successfully stored?

A. Each S3 account has a special bucket named_s3_log

B. Success codes are written to this bucket with a timestamp and checksu

C. A success code is inserted into the S3 object metadat

D. A HTTP 200 result code and MD5 checksum, taken together, indicate that the operation was successfu

E. Amazon S3 is engineered for 99.999999999% durabilit

F. Therefore there is no need to confirm that data was inserte

Correct Answer:B
Reference:
http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectPUT.html

Question 17

- (Topic 1)
When an EC2 EBS-backed (EBS root) instance is stopped, what happens to the data on any ephemeral store volumes?

A. Data will be deleted and win no longer be accessible

B. Data is automatically saved in an EBS volum

C. Data is automatically saved as an EBS snapshot

D. Data is unavailable until the instance is restarted

Correct Answer:D

Question 18

- (Topic 1)
Your team Is excited about the use of AWS because now they have access to programmable Infrastructure" You have been asked to manage your AWS infrastructure In a manner similar to the way you might manage application code You want to be able to deploy exact copies of different versions of your infrastructure, stage changes into different environments, revert back to previous versions, and identify what versions are running at any particular time (development test QA. production).
Which approach addresses this requirement?

A. Use cost allocation reports and AWS Opsworks to deploy and manage your infrastructur

B. Use AWS CloudWatch metrics and alerts along with resource tagging to deploy and manage your infrastructur

C. Use AWS Beanstalk and a version control system like GIT to deploy and manage your infrastructur

D. Use AWS CloudFormation and a version control system like GIT to deploy and manage your infrastructur

Correct Answer:B
Reference:
http://aws.amazon.com/opsworks/faqs/

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