AWS-1

A company is planning to run a global marketing application in the AWS Cloud. The application will feature videos that can be viewed by users. The company must ensure that all users can view these videos with low latency. Which AWS service should the company use to meet this requirement?

• Elastic Load Balancing

• Amazon CloudFront

• Amazon Kinesis Video Streams

• AWS Auto Scaling

Which pillar of the AWS Well-Architected Framework refers to the ability of a system to recover from infrastructure or service disruptions and dynamically acquire computing resources to meet demand?

• Security

• Cost optimization

• Performance efficiency

• Reliability

Which of the following are benefits of migrating to the AWS Cloud? (Choose two.)

• Business excellence Business excellence

• Increased staff retention

• Operational resilience

• Discounts for products on Amazon.com

• Business agility

Answer explanation

There are several benefits to migrating to the AWS Cloud, including: A. Operational resilience: The AWS Cloud is designed to be highly available and scalable, which can help organizations improve their operational resilience and reduce the impact of failures or disruptions. C. Business agility: Migrating to the AWS Cloud can help organizations to increase their business agility by allowing them to quickly and easily deploy new applications and services, scale their infrastructure up or down as needed, and experiment with new technologies.

A company is planning to replace its physical on-premises compute servers with AWS serverless compute services. The company wants to be able to take advantage of advanced technologies quickly after the migration.Which pillar of the AWS Well-Architected Framework does this plan represent?

• Operational excellence

• Security

• Performance efficiency

• Reliability

Answer explanation

Reference: https://aws.amazon.com/blogs/apn/the-6-pillars-of-the-aws-well-architected-framework/ My answer would be B because of the following reason: In the official documentation, for the design principle of pillar "Operational Efficiency" we don't see the work serverless computing mentioned as below: Design Principles There are five design principles for operational excellence in the cloud: Perform operations as code Make frequent, small, reversible changes Refine operations procedures frequently Anticipate failure Learn from all operational failures but we could see the "serverless computing" mentioned in pillar "Performance Efficiency" Design Principles There are five design principles for performance efficiency in the cloud: Democratize advanced technologies Go global in minutes #####Use serverless architectures##### Experiment more often Consider mechanical sympathy

A large company has multiple departments. Each department has its own AWS account. Each department has purchased Amazon EC2 Reserved Instances.Some departments do not use all the Reserved Instances that they purchased, and other departments need more Reserved Instances than they purchased.The company needs to manage the AWS accounts for all the departments so that the departments can share the Reserved Instances.Which AWS service or tool should the company use to meet these requirements?

• AWS Systems Manager

• Cost Explorer

• AWS Organizations

• AWS Trusted Advisor

Answer explanation

The AWS service that the company should use to manage AWS accounts for all the departments so that the departments can share the Reserved Instances is D. AWS Organizations. AWS Organizations is a service that helps you centrally manage and govern your AWS accounts. With AWS Organizations, you can consolidate multiple AWS accounts into an organization that you create and centrally manage. Once the accounts are organized, you can use AWS Organizations to apply policies and control access to AWS services across those accounts. In this scenario, the company can use AWS Organizations to consolidate the multiple AWS accounts into an organization and apply policies that allow departments to share Reserved Instances. This would enable departments that are not using all of their Reserved Instances to make them available to other departments that need more Reserved Instances. Therefore, the correct answer is D. AWS Organizations.

Which component of the AWS global infrastructure is made up of one or more discrete data centers that have redundant power, networking, and connectivity?

• Edge location

• AWS Outposts

• Availability Zone

• AWS Region

Answer explanation

The component of the AWS global infrastructure that is made up of one or more discrete data centers that have redundant power, networking, and connectivity is B. Availability Zone. An Availability Zone is a separate data center within a region that has independent power, cooling, and networking, which are connected to other Availability Zones through high-bandwidth, low-latency links. By using multiple Availability Zones, customers can design and operate applications and services that are highly available, fault-tolerant, and scalable.

Which duties are the responsibility of a company that is using AWS Lambda?

• Security inside of code

• Security of underlying infrastructure

• Writing and updating of code

• Patching of operating system

• Selection of CPU resources

Answer explanation

Lambda runs your code on high availability compute infrastructure and performs all the administration of your compute resources. This includes server and operating system maintenance, capacity provisioning and automatic scaling, code and security patch deployment, and code monitoring and logging. All you need to do is supply the code. Ref:https://aws.amazon.com/lambda/features/

Which AWS services or features provide disaster recovery solutions for Amazon EC2 instances? (Choose two.)

• Reserved Instances

• EC2 Amazon Machine Images (AMIs)

• Amazon Elastic Block Store (Amazon EBS) snapshots

• Amazon GuardDuty

• AWS Shield

A company is migrating to the AWS Cloud instead of running its infrastructure on premises.Which of the following are advantages of this migration? (Choose two.)

• Increased global reach and agility Most Voted

• Ability to deploy globally in minutes

• Elimination of the need to perform security auditing

• Redundancy by default for all compute services

• Elimination of the cost of IT staff members

A user is comparing purchase options for an application that runs on Amazon EC2 and Amazon RDS. The application cannot sustain any interruption. The application experiences a predictable amount of usage, including some seasonal spikes that last only a few weeks at a time. It is not possible to modify the application.Which purchase option meets these requirements MOST cost-effectively?

• Review the AWS Marketplace and buy Partial Upfront Reserved Instances to cover the predicted and seasonal load.

• Buy Reserved Instances for the predicted amount of usage throughout the year. Allow any seasonal usage to run at an On-Demand rate.

• Buy Reserved Instances to cover all potential usage that results from the seasonal usage.

• Buy Reserved Instances for the predicted amount of usage throughout the year. Allow any seasonal usage to run on Spot Instances.

Answer explanation

the question explicitly mentioned that "The application cannot sustain any interruption" of which Spot Instances are ideal for workloads with flexible start and end times, or that can withstand interruptions. Ideally we want pricing that doesn't allow interruption in this case it will be On-Demand.