AWS Interactive Knowledge Tool
Get ready for AWS Certified Solutions Architect - Associate
You’re on a journey toward AWS Certification. Validating your experience with an industry-recognized credential is a great way to gain new skills, solidify knowledge, highlight your value, and accelerate your career trajectory. These Interactive sample questions will help you prepare for the structure and topics covered on the official AWS Certified Solutions Architect – Associate exam.
In addition to the questions, you’ll see, explanations, and other resources designed to enhances your understanding of the principles needed to pass the exam. After you’re comfortable with these principles and sample questions, you’ll be ready to evaluate your knowledge with the official practice examination.
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AWS Certified Solutions Architect - Associate
Your knowledge in review
In addition to the questions, you’ll see answers, explanations, and other resources designed to enhance your understanding of the principles needed to pass the exam. Take a deeper look at all the questions, review your answers, and find links to learning resources specific to that topic. Or, if you’re ready, sign up to take the official practice exam.
A customer relationship management (CRM) application runs on Amazon EC2 instances in multiple Availability Zones behind an Application Load Balancer.
If one of these instances fails, what occurs?
An Application Load Balancer (ALB) sends requests to healthy instances only. An ALB performs periodic health checks on targets in a target group. An instance that fails health checks for a configurable number of consecutive times is considered unhealthy. The load balancer will no longer send requests to the instance until it passes another health check.
A company needs to perform asynchronous processing, and has Amazon SQS as part of a decoupled architecture. The company wants to ensure that the number of empty responses from polling requests are kept to a minimum.
What should a solutions architect do to ensure that empty responses are reduced?
When the ReceiveMessageWaitTimeSeconds property of a queue is set to a value greater than zero, long polling is in effect. Long polling reduces the number of empty responses by allowing Amazon SQS to wait until a message is available before sending a response to a ReceiveMessage request.
A company currently stores data for on-premises applications on local drives. The chief technology officer wants to reduce hardware costs by storing the data in Amazon S3 but does not want to make modifications to the applications. To minimize latency, frequently accessed data should be available locally.
What is a reliable and durable solution for a solutions architect to implement that will reduce the cost of local storage?
An AWS Storage Gateway volume gateway connects an on-premises software application with cloud- backed storage volumes that can be mounted as Internet Small Computer System Interface (iSCSI) devices from on-premises application servers. In cached volumes mode, all the data is stored in Amazon S3 and a copy of frequently accessed data is stored locally.
A company runs a public-facing three-tier web application in a VPC across multiple Availability Zones. Amazon EC2 instances for the application tier running in private subnets need to download software patches from the internet. However, the instances cannot be directly accessible from the internet.
Which actions should be taken to allow the instances to download the needed patches? (Select TWO)
A NAT gateway forwards traffic from the instances in the private subnet to the internet or other AWS services, and then sends the response back to the instances. After a NAT gateway is created, the route tables for private subnets must be updated to point internet traffic to the NAT gateway.
A solutions architect wants to design a solution to save costs for Amazon EC2 instances that do not need to run during a 2-week company shutdown. The applications running on the instances store data in instance memory (RAM) that must be present when the instances resume operation.
Which approach should the solutions architect recommend to shut down and resume the instances?
Hibernating an instance saves the contents of RAM to the Amazon EBS root volume. When the instance restarts, the RAM contents are reloaded.
A company plans to run a monitoring application on an Amazon EC2 instance in a VPC. Connections are made to the instance using its private IPv4 address. A solutions architect needs to design a solution that will allow traffic to be quickly directed to a standby instance if the application fails and becomes unreachable.
Which approach will meet these requirements?
A secondary ENI can be added to an instance. While primary ENIs cannot be detached from an instance, secondary ENIs can be detached and attached to a different instance.
What must a solutions architect do to ensure that the script will successfully execute?
Web browsers will block the execution of a script that originates from a server with a different domain name than the webpage. Amazon S3 can be configured with CORS to send HTTP headers that allow the script execution.
A company’s security team requires that all data stored in the cloud be encrypted at rest at all times using encryption keys stored on-premises.
Which encryption options meet these requirements? (Select TWO)
Server-Side Encryption with Customer-Provided Keys (SSE-C) enables Amazon S3 to encrypt objects server side using an encryption key provided in the PUT request. The same key must be provided in GET requests for Amazon S3 to decrypt the object. Customers also have the option to encrypt data client side before uploading it to Amazon S3 and decrypting it after downloading it. AWS SDKs provide an S3 encryption client that streamlines the process.
A company needs to maintain access logs for a minimum of 5 years due to regulatory requirements. The data is rarely accessed once stored, but must be accessible with one day’s notice if it is needed.
What is the MOST cost-effective data storage solution that meets these requirements?
Data can be stored directly in Amazon S3 Glacier Deep Archive. This is the cheapest S3 storage class.
A company uses Reserved Instances to run its data-processing workload. The nightly job typically takes 7 hours to run and must finish within a 10-hour time window. The company anticipates temporary increases in demand at the end of each month that will cause the job to run over the time limit with the capacity of the current resources. Once started, the processing job cannot be interrupted before completion. The company wants to implement a solution that would allow it to provide increased capacity as cost-effectively as possible.
What should a solutions architect do to accomplish this?
While Spot Instances would be the least costly option, they are not suitable for jobs that cannot be interrupted or must complete within a certain time period. On-Demand Instances would be billed for the number of seconds they are running.