Answer: C

Explanation:

AutoScaIing attempts to distribute instances evenly between the Availability Zones that are enabled for the user’s AutoScaIing group. Auto Scaling does this by attempting to launch new instances in the Availability Zone with the fewest instances.

Reference:http://docs.aws.amazon.com/AutoScaIing/latest/Deve|operGuide/AS_Concepts.htmI

Answer: A

Explanation:

To configure the message retention period, set the lVIessageRetentionPeriod attribute using the SetQueueAttributes method. This attribute is used to specify the number of seconds a message will be retained by SQS. Currently the default value for the message retention period is 4 days. Using the lVIessageRetentionPeriod attribute, the message retention period can be set anywhere from 60 seconds (1 minute), up to 1209600 seconds (14 days).

Reference: https://aws.amazon.com/sqs/faqs/

Answer: C

Explanation:

The X-Forvvarded-Port request header helps the user identify the port used by the client while sending a request to ELB.

Reference: http://docs.aws.amazon.com/EIasticLoadBalancing/latest/DeveIoperGuide/TerminologyandKeyConcepts. html

Answer: D

Explanation:

You can use the CLI tools to manage your Amazon EC2 resources (such as instances, security groups, and volumes) and your Amazon VPC resources (such as VPCs, subnets, route tables, and Internet gateways). Before you can start using the tools, you must download and configure them.

The following are valid CLI commands for EC2 instances: ec2-accept-vpc-peering-connection

ec2-allocate-address

ec2-assign-private-ip-addresses ec2-associate-address

ec2-associate-dhcp-options ec2-associate-route-table

ec2-attach-internet-gateway

ec2-attach-network-interface (not ec2-allocate-interface) Reference:

http://docs.aws.amazon.com/AWSEC2/latest/CommandLineReference/command-reference.html

Answer: C

Explanation:

These services are designed to complement each other. AWS Elastic Beanstalk provides an environment to easily develop and run applications in the cloud. It is integrated with developer tools and provides a one-stop experience for you to manage the lifecycle of your applications. AWS CIoudFormation is a convenient deployment mechAMsm for a broad range of AWS resources. It supports the infrastructure needs of many different types of applications such as existing enterprise applications, legacy applications, applications built using a variety of AWS resources and container-based solutions (including those built using AWS Elastic Beanstalk).

AWS CIoudFormation introduces two new concepts: The template, a JSON-format, text-based file that describes all the AWS resources you need to deploy to run your application and the stack, the set of AWS resources that are created and managed as a single unit when AWS CIoudFormation instantiates a template.

Reference: http://aws.amazon.com/c|oudformation/faqs/

Answer: D

Explanation:

It is a recommended approach to avoid using the access and secret access keys of the root account.

Thus, do not download or delete it. Instead make the IAM user as powerful as the root account and use its credentials. The user cannot generate their own access and secret access keys as they are always  generated by AWS.

Reference:       http://docs.aws.amazon.com/IAM/latest/UserGuide/IAMBestPractices.html

Answer: C

Explanation:

In DynamoDB, SSDs help achieve design goals of predictable low-latency response times for storing and accessing data at any scale. The high I/O performance of SSDs also enables to serve high-scale request workloads cost efficiently, and to pass this efficiency along in low request pricing.

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

Answer: D

Explanation:

You can configure your load balancer in ELB (Elastic Load Balancing) to use a SSL certificate in order to improve your system security.The load balancer uses the certificate to terminate and then decrypt   requests before sending them to the back-end instances. Elastic Load Balancing uses AWS Identity and Access Management (IAM) to upload your certificate to your load balancer.

Reference: http://docs.aws.amazon.com/EIasticLoadBaIancing/latest/DeveIoperGuide/US_SettingUpLoadBaIancerH TTPS.htmI

Answer: C 

Explanation:

The data model of DynamoDB is: "TabIe", a collection of Items;

"Items", with Keys and one or more Attribute; "Attribute", with Name and Value.

Reference:        http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DataModeI.html

Answer: D

Explanation:

AWS IAM allows an orgAMzation to create multiple users and provide them access to various AWS services. By default when the user is created, he does not have password enabled and can not login to   AWS console. If the orgAMzation wants to allow the users to login to AWS console, they can enable password for each user. It is required that IAM users follow certain guidelines to set their IAM login password. For this IAM provides root account owner to setup passwrod policy. The password policy also lets the specify whether all IAM users can change their own passwords. As part of policy, orgAMzation can specify that passwords for IAM users must be of a certain minimum length, must include certain   characters, and a few more criteria such as below.

One upper/ lower or both letters One alpha numeric

One number

Reference:         http://docs.aws.amazon.com/|AM/Iatest/UserGuide/Using_ManagingPasswordPoIicies.htm|