The user is allowed to send data up to one-thousandth of a second. CloudWatch aggregates the data by each minute and generates a metric for that.

Reference: http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/publishingMetrics. html

 

 

 

 

Question: 759

When rebalancing, Auto Scaling launches new instances before terminating the old ones, so that rebalancing does not compromise the performance or availability of your application. Because Auto Scaling attempts to launch new instances before terminating the old ones, being at or near the specified maximum capacity could impede or completely halt rebalancing activities. What does Auto Scaling do in order to avoid this problem?

A.It can temporarily exceed the specified maximum capacity of a group by a 20 percent margin (or by a 2-instance margin, whichever is greater) during a rebalancing activity.

B.It can add new reserved instances you have defined.

C.It can temporarily exceed the specified maximum capacity of a group by a 10 percent margin (or by a 1-instance margin, whichever is greater) during a rebalancing activity.

D.It can temporarily exceed the specified maximum capacity of a group by a 5 percent margin (or by a 1-instance margin, whichever is greater) during a rebalancing activity.

 

 

 

 

Answer: C

Explanation:

When rebalancing, Auto Scaling launches new instances before terminating the old ones, so that

rebalancing does not compromise the performance or availability of your application. Because Auto Scaling attempts to launch new instances before terminating the old ones, being at or near the specified maximum capacity could impede or completely halt rebalancing activities. To avoid

this problem, the system can temporarily exceed the specified maximum capacity of a group by a 10 percent margin (or by a 1-instance margin, whichever is greater) during a rebalancing activity.

Reference: http://docs.aws.amazon.com/autoscaling/latest/userguide/auto-scaling- benefits.html

 

 

 

 

Question: 760

What does the AWS Storage Gateway provide?

A.It provides data security features by enabling an encrypted data storage on Amazon S3.

B.It provides an encrypted SSL endpoint for backups in the cloud.

C.It provides seamless integration with data security features between your on-premises IT environment and the Amazon Web Services (AWS) storage infrastructure.

D.It provides a backup solution to on-premises Cloud storage.

 

 

 

 

Answer: C

Explanation:

AWS Storage Gateway connects an on-premises software appliance with cloud-based storage to provide seamless integration with data security features between your on-premises IT environment and the Amazon Web Services (AWS) storage infrastructure.

Reference: http://docs.aws.amazon.com/storagegateway/latest/userguide/WhatIsStorageGateway.html

 

 

 

 

Question: 761

By default, how many Elastic IP addresses can you have per region for your EC2 instances?

A.10

B.2

C.20

D.5

 

 

 

 

Answer: D

Explanation:

The number of Elastic IP addresses you can have in EC2 per region is 5.

Reference: http://docs.aws.amazon.com/general/latest/gr/aws_service_limits.html#limits_ec2 Question: 762

Elasticity is one of the benefits of using Elastic Beanstalk. Which of the following best describes the concept of elasticity?

A.It is the ability for counting the number of architectural design considerations that are required to develop a console.

B.It is the streamlining of resource acquisition and release, so that your infrastructure can rapidly scale in and scale out as demand fluctuates.

C.It is the process of examining the amount of security credentials required to access a data volume.

D.It is the procedure of estimating the resource cost, so that you can run a specific project on AWS.

 

 

 

 

Answer: B

Explanation:

Because applications deployed using Elastic Beanstalk run on Amazon cloud resources, you

should keep several things in mind when designing your application: scalability, security, persistent storage, fault tolerance, content delivery, software updates and patching, and connectivity. Elasticity is the streamlining of resource acquisition and release, so that your infrastructure can rapidly scale in and scale out as demand fluctuates.

Reference: http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/concepts.concepts.design.html

 

 

 

 

Question: 763

What is an Auto Scaling group?

A.It is a group of ELBs that are used to add instances from various regions.

B.It is a logical grouping of EC2 instances that share similar characteristics for scaling and management.

C.It is a collection of EC2 instance launch parameters with different characteristics for scaling and management.

D.It is a group of launch configurations for Elastic load balancers in the same region.

 

 

 

 

Answer: B

Explanation:

An Auto Scaling group contains a collection of EC2 instances that share similar characteristics

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