CPSC 4440 AWS ACA ALL ANSWERS 100% CORRECT SPRING FALL-2023/24 EDITION GUARANTEED GRADE A+

What is the best definition of cloud architecture? A. Combining frontend and backend software and components to create highly available and scalable we services that meet the needs of an organization B. Applying cloud characteristics to a solution that uses cloud services and features to meet technical and business requirements C. Designing applications in cloud-based, shared IT infrastructure by using virtual machines and fault tolerant data stores in the cloud D. Relocation traditional on premises data centers to internet centers that a vendor manages B. Applying cloud characteristics to a solution that uses cloud services and features to meet technical and business requirements The AWS Well Architecture Framework has five pillars. Two of the pillars are security and operational excellence. What are the other pillars? (Select 3) A. Reliability B. Governance C. Privacy D. Performance Efficiency E. Risk Management F. Cost Optimization A. Reliability D. Performance Efficiency F. Cost Optimization (Sustainability bonus) Which actions are consistent with the operational excellence pillar of the AWS Well Architecture Framework? (select 2) A. Evaluate organizational structures and roles to identify skill gaps B. Apply software engineering principles and methodology to infrastructure as code C. Ensure operations personnel document changes to the infrastructure D. plan and manage the full lifecycle of hardware assets E. Review and improve processes and procedures on a continuous cycle B. Apply software engineering principles and methodology to infrastructure as code E. Review and improve processes and procedures on a continuous cycle An application requires a frontend web tier of multiple servers that communicate with a backend application tier of multiple servers. Which design most closely follows Amazon Web Services best practices? A. Assign a dedicated application server and a dedicated connection to each web server B. Create multiple instances that each combine a web fronted and application backend in the same instance C. design the web tier to communication with the application tier through Elastic Load Balancing Service D. Create a full mesh framework between the web and application tiers so that each web server can communicate directly with every application server C. design the web tier to communication with the application tier through Elastic Load Balancing Service A solutions architect is developing a process for handling server failures. Which process most closely follows AWS best practices? A. Operations detects a system failure. They notify the systems admin, who provisions a new server by using the AWS management Console B. Amazon CloudWatch detects a system failure. It notifies the system administrator, who provisions a new server by using the AWS Man. Console C. Operations detects a system failure. They trigger automation to provision a new server D. Amazon CloudWatch detects a system failure. It triggers automation to provision a new server. D. Amazon CloudWatch detects a system failure. It triggers automation to provision a new server. A company wants to change some functionality of their website. They are unsure of what will happen if they make the change. Which approach most closely follows AWS best practices? A. Change the production site while it is online Use backups to undo the change. B. Change the production site during offline maintenance hours. Use backups to undo the change. C. Provision a new server and make changes to it. Use DNS to gradually migrate users to the new server. Shut down the original server after all users migrate D. Test the change on an existing development server. Change the production site during offline maintenance hours. Use backups to undo the change. C. Provision a new server and make changes to it. Use DNS to gradually migrate users to the new server. Shut down the original server after all users migrate A company stores read only data in Amazon S3. Most users are in the same country as the company headquarters. Some users are located around the world. Which design decision most closely follows AWS best practices? A. Use a bucket in the AWS region closest to the company headquarters B. Use a bucket in the AWS region that has the lowest average latency for all users C. Replicate objects across buckets in AWS regions around the world. Users access the bucket in the AWS region closest to them D. Use a bucket in the AWS region closest to the company headquarters. All users access the data through Amazon Cloudfront D. Use a bucket in the AWS region closest to the company headquarters. All users access the data through Amazon Cloudfront A consultant must access a large object in an S3 bucket. They need a day to access the file. Which method for granting access most closely follows AWS best practices? A. create a preassigned URL to the object that expires in 24 hours and give it to the consultant B. Enable public access on the S3 bucket. Give the object URL to the consultant. C. Copy the object to a new S3 bucket. Enable public access on the new bucket. From the new bucket, get the object URL, and give it to the consultant D. Create a user account for the consultant. Grant the user account permissions to access the S3 bucket through the AWS management console A. create a preassigned URL to the object that expires in 24 hours and give it to the consultant What are the main considerations that influence which AWS regions to use? (select 2) A. security and access control B. latency reduction for end users C. Protection against localized natural disasters D. application resiliency during system failures E. compliance with laws and regulations B. latency reduction for end users E. compliance with laws and regulations What are the main considerations that influence which AZ to use? (select two) A. security and access control B. latency reduction for end users C. Protection against localized natural disasters D. application resiliency during system failures E. compliance with laws and regulations C. Protection against localized natural disasters D. application resiliency during system failures Which statement about Amazon EC2 Auto Scaling is accurate? A. it requires the customer to purchase reserved instances B. it can launch amazon EC2 instances in multiple AZs C. It can launch EC2 instances, but customers must terminate instances after they are no longer needed D. it can only launch new EC2 instances based on a schedule B. it can launch amazon EC2 instances in multiple AZs You detected that the demand on a fleet of EC2 instances in an auto scaling group increases by a set amount each day. Which type of scaling is the most appropriate for this scenario? A. scheduled B. dynamic C. predictive D. manual A. scheduled A fleet of EC2 instances are launched in an auto scaling group behind an elastic load balancer. The EC2 instances must maintain 50 percent average CPU utilization. Which type of scaling provides the simplest way to achieve this requirement? A. step scaling B. simple scaling C. target tracking scaling D. manual scaling C. target tracking scaling How do you vertically scale an RDS database? A. by adding read replicas B. by creating dedicated read and write nodes C. by sharding the database D. by changing the instance class D. by changing the instance class How do you horizontally scale an Amazon Aurora database? A. by adding aurora replica instances B. by increasing the size of the buffer cache configuration C. by creating cloudwatch alarms D. by changing the instance type A. by adding aurora replica instances How does dynamoDB perform automatic scaling? A. it adds and removes database instances in response to changes in traffic B. it adds read replicas in response to increased read demand C. it adjusts the provisioned throughput capacity in response to traffic patterns D. it changes the instance type in response to changes in processing load C. it adjusts the provisioned throughput capacity in response to traffic patterns A fleet of EC2 instances launch in an auto scaling group. The instances run an application that uses a custom protocol on TCO port 42000. Connections from client systems on the internet must balance across the instances. Which load balancing solution ensures the highest availability? A. round robin DNS B. application load balancer C. network load balancer D. instance based load balancer C. network load balancer Users in location A connect to an application in Region A. Users in location B connect to the same application in Region B. If the application in Region A becomes unhealthy, clients in location A must be redirected to the application in Region B. Which solution can meet this requirement? A. Use an application load balancer with cloudwatch alarms B. use geolocation routing with failover records in route 53 C. use latency based routing in route 53 with cloudwatch alarms D. use geoproximity routing and a network load balancer that is attached to both regions B. use geolocation routing with failover records in route 53 A company must build a highly available website that uses server-side scripts to serve dynamic HTML. Which solution provides the highest availability for the least cost and complexity? A. an auto scaling group launches EC2 instances, which are served by an application load balancer. DNS name resolution points to the load balancer CONTINUED...