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255 Questions & Answers [AWS Certification Dumps] AWS Certified Developer – Associate Part 4

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This post is continuation of part 3

in case if you miss the previous parts, get them from here:

Part 1: 255 Questions & Answers [AWS Certification Dumps] AWS Certified Developer – Associate Part 1

Part 2: 255 Questions & Answers [AWS Certification Dumps] AWS Certified Developer – Associate Part 2

Part 3: 255 Questions & Answers [AWS Certification Dumps] AWS Certified Developer – Associate Part 3

Amazon AWS-Certified-Developer-Associate Exam

Answer: B

Explanation:
The Manual Scaling as part of Auto Scaling allows the user to change the capacity of Auto Scaling group. The user can add / remove EC2 instances on the fly. To execute manual scaling, the user should modify the desired capacity. AutoScaling will adjust instances as per the requirements. If the user is trying to CLI, he can use command as-set-desired-capacity <Auto Scaling Group Name> –desired-capacity <New Capacity>
Reference: http://docs.aws.amazon.com/AutoScaling/latest/DeveloperGuide/as-manual-scaling.html

Question No: 193
A user has configured a website and launched it using the Apache web server on port 80. The user is using ELB with the EC2 instances for Load Balancing. What should the user do to ensure that the EC2 instances accept requests only from ELB?

  1. Open the port for an ELB static IP in the EC2 security group
    B. Configure the security group of EC2, which allows access to the ELB source security group C. Configure the EC2 instance so that it only listens on the ELB port
    D. Configure the security group of EC2, which allows access only to the ELB listener
    Answer: B

Explanation:
When a user is configuring ELB and registering the EC2 instances with it, ELB will create a source security group. If the user wants to allow traffic only from ELB, he should remove all the rules set for the other requests and open the port only for the ELB source security group.
Reference: http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/using-elb-security-groups.html

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Question No: 194
When working with AWS CloudFormation Templates what is the maximum number of stacks that you can create?

  1. 500 B. 50 C. 20
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