Amazon SAA-C01 Online Practice Questions and Exam Preparation

Amazon SAA-C01 Online Questions & Answers

• Question 271:

  A university is running an internal web application on AWS that students can access from the university network to check their exam results. The web application runs on Amazon EC2 instances and pulls results from an Amazon DynamoDB table. Auto Scaling is currently configured to add a new web server when CPU is greater than 80% for 5 minutes. DynamoDB is configured to increase both read and write capacity units by five when utilization is greater than 80%. Exam results are released at 9:00 a.m. each Monday, and 80% of students, attempt to access their unique result within the first 30 minutes. Despite Auto Scaling being enabled, students are complaining of slow response times and errors when they view the site. There are no performance complaints after 9:30 a.m. on Monday.

  Which recommendation should a Solutions Architect make to improve performance in a cost-effective manner?

  A. Scale out the EC2 instances to ensure that the environment scales up and down based on the highest load.
  B. Implement Amazon DynamoDB Accelerator to improve database performance and remove the need to scale the read/write units.
  C. Use a scheduled job to scale out EC2 before 9:00 a.m. on Monday and to scale down after 9:30 a.m.
  D. Use Amazon CloudFront to cache web request and reduce the load on EC2 and DynamoDB.
  D. Use Amazon CloudFront to cache web request and reduce the load on EC2 and DynamoDB.

• Question 272:

  A company maintains an application on an on-premises server. The company wants to automatically redirect users to a static maintenance page hosted on Amazon S3 when the application is unavailable. What is the MOST efficient method to ensure the users are automatically redirected?

  A. Use an Amazon Route 53 failover routing policy, and configure the application as primary and the Amazon S3 static page as secondary.
  B. Use Amazon CloudWatch Events to trigger an AWS Lambda function that changes the DNS to point to the static page.
  C. Use an Amazon Route 53 weighted routing policy, and configure the application higher and the Amazon S3 static page lower.
  D. Use Amazon Route 53 to set up multiple A records for both the application and Amazon S3.
  A. Use an Amazon Route 53 failover routing policy, and configure the application as primary and the Amazon S3 static page as secondary.

• Question 273:

  A Solutions Architect is designing a microservices-based application using Amazon ECS. The application includes a WebSocket component, and the traffic needs to be distributed between microservices based on the URL. Which service should the Architect choose to distribute the workload?

  A. ELB Classic Load Balancer
  B. Amazon Route 53 DNS
  C. ELB Application Load Balancer
  D. Amazon CloudFront
  C. ELB Application Load Balancer

• Question 274:

  A company wants to expand its web services from us-east-1 into ap-southeast-1. The company stores a large amount of static content on its website, and recently received complaints about slow loading speeds and the website timing out. What should be done to meet the expansion goal while also addressing the latency and timeout issues?

  A. Store the static content in Amazon S3 and enable S3 Transfer Acceleration.
  B. Store the static content in an Amazon EBS volume in the ap-southeast-1 region and provision larger Amazon EC2 instances for the website.
  C. Use an Amazon Route 53 simple routing policy to distribute cached content across three regions.
  D. Use Amazon S3 to store the static content and configure an Amazon CloudFront distribution.
  D. Use Amazon S3 to store the static content and configure an Amazon CloudFront distribution.

• Question 275:

  Company B is launching a new game app for mobile devices. Users will log into the game using their existing social media account to streamline data capture. Company B would like to directly save player data and scoring information from the mobile app to a DynamoDS table named Score Data When a user saves their game the progress data will be stored to the Game state S3 bucket. What is the best approach for storing data to DynamoDB and S3?

  A. Use an EC2 Instance that is launched with an EC2 role providing access to the Score Data DynamoDB table and the GameState S3 bucket that communicates with the mobile app via web services.
  B. Use temporary security credentials that assume a role providing access to the Score Data DynamoDB table and the Game State S3 bucket using web identity federation.
  C. Use Login with Amazon allowing users to sign in with an Amazon account providing the mobile app with access to the Score Data DynamoDB table and the Game State S3 bucket.
  D. Use an IAM user with access credentials assigned a role providing access to the Score Data DynamoDB table and the Game State S3 bucket for distribution with the mobile app.
  B. Use temporary security credentials that assume a role providing access to the Score Data DynamoDB table and the Game State S3 bucket using web identity federation.

• Question 276:

  An e-commerce application is hosted in AWS. The last time a new product was launched, the application experienced a performance issue due to an enormous spike in traffic. Management decided that capacity must be doubled the week after the product is launched.

  Which is the MOST efficient way for management to ensure that capacity requirements are met?

  A. Add a Step Scaling policy.
  B. Add a Dynamic Scaling policy.
  C. Add a Scheduled Scaling action.
  D. Add Amazon EC2 Spot Instances.
  B. Add a Dynamic Scaling policy.

• Question 277:

  You've been brought in as solutions architect to assist an enterprise customer with their migration of an e-commerce platform to Amazon Virtual Private Cloud (VPC) The previous architect has already deployed a 3-tier VPC, The configuration is as follows:

  

  You are now ready to begin deploying EC2 instances into the VPC. Web servers must have direct access to the internet. Application and database servers cannot have direct access to the internet. Which configuration below will allow you the ability to remotely administer your application and database servers, as well as allow these servers to retrieve updates from the Internet?

  A. Create a bastion and NAT instance in subnet-258bc44d, and add a route from rtb- 238bc44b to the NAT instance.
  B. Add a route from rtb-238bc44b to igw-2d8bc445 and add a bastion and NAT instance within subnet-248bc44c.
  C. Create a bastion and NAT instance in subnet-248bc44c, and add a route from rtb- 238bc44b to subnet-258bc44d.
  D. Create a bastion and NAT instance in subnet-258bc44d, add a route from rtb-238bc44b to Igw- 2d8bc445, and a new NACL that allows access between subnet-258bc44d and subnet-248bc44c.
  A. Create a bastion and NAT instance in subnet-258bc44d, and add a route from rtb- 238bc44b to the NAT instance.

• Question 278:

  An AWS workload in a VPC is running a legacy database on an Amazon EC2 instance. Data is stored on a 200GB Amazon EBS (gp2) volume. At peak load times, logs show excessive wait time. What solution should be implemented to improve database performance using persistent storage?

  A. Migrate the data on the Amazon EBS volume to an SSD-backed volume.
  B. Change the EC2 instance type to one with EC2 instance store volumes.
  C. Migrate the data on the EBS volume to provisioned IOPS SSD (io1).
  D. Change the EC2 instance type to one with burstable performance.
  D. Change the EC2 instance type to one with burstable performance.

• Question 279:

  A company wants to improve the performance of their web application after receiving customer complaints. An analysis concluded that the same complex database queries were causing increased latency. What should a Solutions Architect recommend to improve the application's performance?

  A. Migrate the database to MySQL.
  B. Use Amazon RedShift to analyze the queries.
  C. Integrate Amazon ElastiCache into the application.
  D. Use a Lambda-triggered request to the backend database.
  C. Integrate Amazon ElastiCache into the application.

• Question 280:

  A Solutions Architect is designing an architecture for a mobile gaming application. The application is expected to be very popular. The Architect needs to prevent the Amazon RDS MySQL database from becoming a bottleneck due to frequently accessed queries.

  Which service or feature should the Architect add to prevent a bottleneck?

  A. Multi-AZ feature on the RDS MySQL Database
  B. ELB Classic Load Balancer in front of the web application tier
  C. Amazon SQS in front of RDS MySQL Database
  D. Amazon ElastiCache in front of the RDS MySQL Database
  D. Amazon ElastiCache in front of the RDS MySQL Database