AWS-Certified-Developer-Associate Free Practice Test

When you use the AWS Elastic Beanstalk console to deploy a new application you’II need to upload a source bundle and it should .

1. A. Consist of a single .zip file
2. B. Consist of a single .war file
3. C. Consist of a single .zip file or .war file
4. D. Consist of a folder with all files

Correct Answer: C
When you use the AWS Elastic Beanstalk console to deploy a new application or an application version, you’II need to upload a source bundle. Your source bundle must meet the following requirements: Consist of a single .zip file or .war file
Not exceed 512 MB
Not include a parent folder or top-level directory (subdirectories are fine) Reference:
http://docs.aws.amazon.com/elasticbeanstaIk/latest/dg/using-features.depIoyment.source.html

What is the format of structured notification messages sent by Amazon SNS?

1. A. An XML object containing MessageId, UnsubscribeURL, Subject, lVIessage and other values
2. B. An JSON object containing MessageId, DupIicateFIag, lVIessage and other values
3. C. An XML object containing MessageId, DupIicateFIag, lVIessage and other values
4. D. An JSON object containing MessageId, unsubscribeURL, Subject, lVIessage and other values

Correct Answer: D

You have been doing a lot of testing of your VPC Network by deliberately failing EC2 instances to test whether instances are failing over properly. Your customer who will be paying the AWS bill for all this asks you if he being charged for all these instances. You try to explain to him how the billing works on EC2 instances to the best of your knowledge. What would be an appropriate response to give to the customer
in regards to this?

1. A. Billing commences when Amazon EC2 AMI instance is completely up and billing ends as soon as the instance starts to shutdown.
2. B. Billing commences when Amazon EC2 initiates the boot sequence of an AMI instance and billing ends when the instance shuts down.
3. C. Billing only commences only after 1 hour of uptime and billing ends when the instance terminates.
4. D. Billing commences when Amazon EC2 initiates the boot sequence of an AMI instance and billing ends as soon as the instance starts to shutdown.

Correct Answer: B
Billing commences when Amazon EC2 initiates the boot sequence of an AMI instance. Billing ends when the instance shuts down, which could occur through a web services command, by running "shutdown -h", or through instance failure.
Reference: http://aws.amazon.com/ec2/faqs/#BiIIing

An orgAMzation is having an application which can start and stop an EC2 instance as per schedule. The orgAMzation needs the MAC address of the instance to be registered with its software. The instance is launched in EC2-CLASSIC. How can the orgAMzation update the MAC registration every time an instance is booted?

1. A. The instance MAC address never change
2. B. Thus, it is not required to register the MAC address every time.
3. C. The orgAMzation should write a boot strapping script which will get the MAC address from the instance metadata and use that script to register with the application.
4. D. AWS never provides a MAC address to an instance; instead the instance ID is used for identifying the instance for any software registration.
5. E. The orgAMzation should provide a MAC address as a part of the user dat
6. F. Thus, whenever the instance is booted the script assigns the fixed MAC address to that instance.

Correct Answer: B
AWS provides an on demand, scalable infrastructure. AWS EC2 allows the user to launch On-Demand instances. AWS does not provide a fixed MAC address to the instances launched in EC2-CLASSIC. If the instance is launched as a part of EC2-VPC, it can have an ENI which can have a fixed MAC. However, with EC2-CLASSIC, every time the instance is started or stopped it will have a new MAC address.
To get this MAC, the orgAMzation can run a script on boot which can fetch the instance metadata and get the MAC address from that instance metadata. Once the MAC is received, the orgAMzation can register that MAC with the software.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AESDG-chapter-instancedata.html

Which of the following device names is recommended for an EBS volume that can be attached to an Amazon EC2 Instance running Windows?

1. A. xvd[a-e]
2. B. /mnt/sd[b-e]
3. C. xvd[f-p]
4. D. /dev/sda1

Correct Answer: C
The xvd[f-p] is the recommended device name for EBS volumes that can be attached to the Amazon EC2 Instances running on Windows.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/device_naming.html