Amazon SAA-C02 Online Practice Questions and Exam Preparation

Amazon SAA-C02 Online Questions & Answers

• Question 371:

  A company is hosting its website by using Amazon EC2 instance behind an Elastic Load Balancer across multiple Availability Zones. The instance run in an EC2 Auto Scaling group. The website uses Amazon Elastic Block Store (Amazon EBS) volumes to store product manuals for users to download. The company updates the product content often, so new instance launched by the Auto Scaling group often have old data It can take up to 30 minutes for the new instances to receive all the updates. The updates also requires the EBS volumes to be resized during business hours. The company wants to ensure that the product manuals are always up to data on all that the architecture adjusts quickly to increased user demand. A solutions architect needs to meet these requirements without causing the company to update its application code or adjust its website. What should the solution architect do to accomplish this goal?

  A. Store the product manuals in an EBS volume. Mount that volume to the EC2 instances.
  B. Store the product manuals in an Amazon S3 bucket. Redirect the downloads to this bucket.
  C. Store the product manual in an Amazon Elastic File System (Amazon EFS) volume Mount that volume to the EC2 instances.
  D. Store the product manual in an Amazon S3 Standard-infrequent Access (S3 Standard-IA) bucket Redirect the downloads to this bucket.
  D. Store the product manual in an Amazon S3 Standard-infrequent Access (S3 Standard-IA) bucket Redirect the downloads to this bucket.

• Question 372:

  A company's application integrates with multiple software-as-a-service (SaaS) sources for data collection. The company runs Amazon EC2 instances to receive the data and to upload the data to an Amazon S3 bucket for analysis. The same EC2 instance that receives and uploads the data also sends a notification to the user when an upload is complete. The company has noticed slow application performance and wants to improve the performance as much as possible.

  Which solution will meet these requirements with the LEAST operational overhead?

  A. Create an Auto Scaling group so that EC2 instances can scale out. Configure an S3 event notification to send events to an Amazon Simple Notification Service (Amazon SNS) topic when the upload to the S3 bucket is complete.
  B. Create an Amazon AppFlow flow to transfer data between each SaaS source and the S3 bucket. Configure an S3 event notification to send events to an Amazon Simple Notification Service (Amazon SNS) topic when the upload to the S3 bucket is complete.
  C. Create an Amazon EventBridge (Amazon CloudWatch Events) rule for each SaaS source to send output data. Configure the S3 bucket as the rule's target. Create a second EventBridge (CloudWatch Events) rule to send events when the upload to the S3 bucket is complete. Configure an Amazon Simple Notification Service (Amazon SNS) topic as the second rule's target.
  D. Create a Docker container to use instead of an EC2 instance. Host the containerized application on Amazon Elastic Container Service (Amazon ECS). Configure Amazon CloudWatch Container Insights to send events to an Amazon Simple Notification Service (Amazon SNS) topic when the upload to the S3 bucket is complete.
  B. Create an Amazon AppFlow flow to transfer data between each SaaS source and the S3 bucket. Configure an S3 event notification to send events to an Amazon Simple Notification Service (Amazon SNS) topic when the upload to the S3 bucket is complete.

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  Explanation/Reference:

• Question 373:

  A restaurant reservation application needs to access a waiting list. When a customer tries to reserve atable, and none are available, the customer application will put the user on the waiting list, and theapplication will notify the customer when a table becomes free. The waiting list must preserve the order in which customers were added to the waiting list. Which service should the solutions architect recommend to store this waiting list?

  A. Amazon Simple Notification Service (Amazon SNS)
  B. AWS Step Functions invoking AWS Lambda functions
  C. A FIFO queue in Amazon Simple Queue Service (Amazon SQS)
  D. A standard queue in Amazon Simple Queue Service (Amazon SQS)
  C. A FIFO queue in Amazon Simple Queue Service (Amazon SQS)

• Question 374:

  A company requires a durable backup storage solution for its on-premises database servers while ensuring on-premises applications maintain access to these backups for quick recovery. The company will use AWS storage services as the destination for these backups A solutions architect is designing a solution with minimal operational overhead Which solution should the solutions architect implement?

  A. Deploy an AWS Storage Gateway file gateway on-premises and associate it with an Amazon S3 bucket
  B. Back up the databases to an AWS Storage Gateway volume gateway and access it using the Amazon S3 API.
  C. Transfer the database backup files to an Amazon Elastic Block Store (Amazon EBS) volume attached to an Amazon EC2 instance.
  D. Back up the database directly to an AWS Snowball device and use lifecycle rules to move the data to Amazon S3 Glacier Deep Archive.
  A. Deploy an AWS Storage Gateway file gateway on-premises and associate it with an Amazon S3 bucket

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  Explanation/Reference:

  Network Load Balancer overview

  A Network Load Balancer functions at the fourth layer of the Open Systems Interconnection (OSI) model. It can handle millions of requests per second. After the load balancer receives a connection request, it selects a target from the target group for the default rule. It attempts to open a TCP connection to the selected target on the port specified in the listener configuration. When you enable an Availability Zone for the load balancer, Elastic Load Balancing creates a load balancer node in the Availability Zone. By default, each load balancer node distributes traffic across the registered targets in its Availability Zone only. If you enable cross-zone load balancing, each load balancer node distributes traffic across the registered targets in all enabled Availability Zones. For more information, see Availability Zones. If you enable multiple Availability Zones for your load balancer and ensure that each target group has at least one target in each enabled Availability Zone, this increases the fault tolerance of your applications. For example, if one or more target groups does not have a healthy target in an Availability Zone, we remove the IP address for the corresponding subnet from DNS, but the load balancer nodes in the other Availability Zones are still available to route traffic. If a client doesn't honor the time-to-live (TTL) and sends requests to the IP address after it is removed from DNS, the requests fail.

  For TCP traffic, the load balancer selects a target using a flow hash algorithm based on the protocol, source IP address, source port, destination IP address, destination port, and TCP sequence number. The TCP connections from a client have different source ports and sequence numbers, and can be routed to different targets. Each individual TCP connection is routed to a single target for the life of the connection. For UDP traffic, the load balancer selects a target using a flow hash algorithm based on the protocol, source IP address, source port, destination IP address, and destination port. A UDP flow has the same source and destination, so it is consistently routed to a single target throughout its lifetime. Different UDP flows have different source IP addresses and ports, so they can be routed to different targets. An Auto Scaling group contains a collection of Amazon EC2 instances that are treated as a logical grouping for the purposes of automatic scaling and management. An Auto Scaling group also enables you to use Amazon EC2 Auto Scaling features such as health check replacements and scaling policies.

  Both maintaining the number of instances in an Auto Scaling group and automatic scaling are the core functionality of the Amazon EC2 Auto Scaling service. The size of an Auto Scaling group depends on the number of instances that you set as the desired capacity. You can adjust its size to meet demand, either manually or by using automatic scaling. An Auto Scaling group starts by launching enough instances to meet its desired capacity. It maintains this number of instances by performing periodic health checks on the instances in the group. The Auto Scaling group continues to maintain a fixed number of instances even if an instance becomes unhealthy. If an instance becomes unhealthy, the group terminates the unhealthy instance and launches another instance to replace it.

  https://docs.aws.amazon.com/elasticloadbalancing/latest/network/introduction.html https://docs.aws.amazon.com/autoscaling/ec2/userguide/AutoScalingGroup.html

• Question 375:

  A solutions architect is designing a solution that will include a database in Amazon RDS Corporate security policy mandates that the database its logs, and its backups are all encrypted What is the MOST efficient option to fulfill the security policy using Amazon RDS?

  A. Launch an Amazon RDS instance with encryption enabled Enable encryption for logs and backups
  B. Launch an Amazon RDS instance Enable encryption for the database, logs, and backups
  C. Launch an Amazon RDS instance with encryption enabled Logs and backups are automatically encrypted
  D. Launch an Amazon RDS instance Enable encryption for backups Encrypt logs with a database- engine feature
  C. Launch an Amazon RDS instance with encryption enabled Logs and backups are automatically encrypted

• Question 376:

  A company wants to migrate a Windows-based application from on premises to the AWS Cloud. The application has three tiers, a business tier, and a database tier with Microsoft SQL Server. The company wants to use specific features of SQL Server such as native backups and Data Quality Services. The company also needs to share files for process between the tiers.

  How should a solution architect design the architecture to meet these requirements?

  A. Host all three on Amazon instances. Use Mmazon FSx File Gateway for file sharing between tiers.
  B. Host all three on Amazon EC2 instances. Use Amazon FSx for Windows file sharing between the tiers.
  C. Host the application tier and the business tier on Amazon EC2 instances. Host the database tier on Amazon RDS. Use Amazon Elastic File system (Amazon EFS) for file sharing between the tiers.
  D. Host the application tier and the business tier on Amazon EC2 instances. Host the database tier on Amazon RDS. Use a Provisioned IOPS SSD (io2) Amazon Elastic Block Store (Amazon EBS) volume for file sharing between the tiers.
  B. Host all three on Amazon EC2 instances. Use Amazon FSx for Windows file sharing between the tiers.

• Question 377:

  A company is managing health records on-premises. The company must keep these records indefinitely, disable any modifications to the records once they are stored, and granularly audit access at all levels. The chief technology officer (CTO) is concerned because there are already millions of records not being used by any application, and the current infrastructure is running out of space The CTO has requested a solutions architect design a solution to move existing data and support future records

  Which services can the solutions architect recommend to meet these requirements'?

  A. Use AWS DataSync to move existing data to AWS. Use Amazon S3 to store existing and new data Enable Amazon S3 object lock and enable AWS CloudTrail with data events.
  B. Use AWS Storage Gateway to move existing data to AWS Use Amazon S3 to store existing and new data. Enable Amazon S3 object lock and enable AWS CloudTrail with management events.
  C. Use AWS DataSync to move existing data to AWS Use Amazon S3 to store existing and new data Enable Amazon S3 object lock and enable AWS CloudTrail with management events.
  D. Use AWS Storage Gateway to move existing data to AWS Use Amazon Elastic Block Store (Amazon EBS) to store existing and new data Enable Amazon S3 object lock and enable Amazon S3 server access logging
  A. Use AWS DataSync to move existing data to AWS. Use Amazon S3 to store existing and new data Enable Amazon S3 object lock and enable AWS CloudTrail with data events.

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  Explanation/Reference:

• Question 378:

  A company has an application in which users create a large number of files The company plans to migrate the application from its on-premises data center to AWS Currently, the application uploads the files to a shared storage system A separate fleet of servers then processes the files Access to the files is controlled through Linux file system permissions The company needs to migrate the fleet of servers to Amazon EC2 instances The company must maximize storage scalability and durability without changing the code of the existing application Which solution will meet these requirements?

  A. Migrate the files to an Amazon S3 bucket Mount the S3 bucket on the EC2 instances
  B. Migrate the files to a set of Amazon EC2 instance store volumes Mount the instance store volumes on the EC2 instances
  C. Migrate the files to a set of Amazon Elastic Block Store (Amazon EBS) volumes Mount the EBS volumes on the EC2 instances
  D. Migrate the files to an Amazon Elastic File System (Amazon EFS) file system Mount the EFS file system on the EC2 instances
  D. Migrate the files to an Amazon Elastic File System (Amazon EFS) file system Mount the EFS file system on the EC2 instances

• Question 379:

  A company is using a content management system that runs on a single Amazon EC2 instance. The EC2 instance contains both the web server and the database software. The company must make its website platform highly available and must enable the website to scale to meet user demand

  What should a solutions architect recommend to meet these requirements?

  A. Move the database to Amazon RDS, and enable automatic backups Manually launch another EC2 instance in the same Availability Zone Configure an Application Load Balancer in the Availability Zone and set the two instances as targets
  B. Migrate the database to an Amazon Aurora instance with a read replica in the same Availability Zone as the existing EC2 instance Manually launch another EC2 instance in the same Availability Zone Configure an Application Load Balancer and set the two EC2 instances as targets
  C. Move the database to Amazon Aurora with a read replica in another Availability Zone Create an Amazon Machine Image (AMI) from the EC2 instance Configure an Application Load Balancer in two Availability Zones Attach an Auto Scaling group that uses the AMI across two Availability Zones
  D. Move the database to a separate EC2 instance and schedule backups to Amazon S3 Create an Amazon Machine Image (AMI > from the original EC2 instance Configure an Application Load Balancer in two Availability Zones Attach an Auto Scaling group that uses the AMI across two Availability Zones
  C. Move the database to Amazon Aurora with a read replica in another Availability Zone Create an Amazon Machine Image (AMI) from the EC2 instance Configure an Application Load Balancer in two Availability Zones Attach an Auto Scaling group that uses the AMI across two Availability Zones

• Question 380:

  A solutions architect is using Amazon S3 to design the storage architecture of a new digital media application. The media files must be resilient to the loss of an Availability Zone Some files are accessed frequently while other files are rarely

  accessed in an unpredictable pattern. The solutions architect must minimize the costs of storing and retrieving the media files.

  Which storage option meets these requirements?

  A. S3 Standard
  B. S3 Intelligent-Tiering
  C. S3 Standard-Infrequent Access {S3 Standard-IA)
  D. S3 One Zone-Infrequent Access (S3 One Zone-IA)
  B. S3 Intelligent-Tiering