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NEW QUESTION 38
A company needs to quickly ensure that all files created in an Amazon S3 bucket in us-east-1 are also available in another bucket in ap-southeast-2.
Which option represents the SIMPLIEST way to implement this design?
- A. Use SNS to notify the bucket in ap-southeast-2 to create a file whenever the file is created in the bucket in us-east-1.
- B. Add an S3 lifecycle rule to move any files from the bucket in us-east-1 to the bucket in ap- southeast-2.
- C. Enable versioning and configure cross-region replication from the bucket in us-east-1 to the bucket in ap-southeast-2.
- D. Create a Lambda function to be triggered for every new file in us-east-1 that copies the file to the bucket in ap-southeast-2.
Answer: C
NEW QUESTION 39
Your application provides data transformation services. Files containing data to be transformed are first uploaded to Amazon S3 and then transformed by a fleet of spot EC2 instances. Files submitted by your premium customers must be transformed with the highest priority. How should you implement such a system?
- A. Use Route 53 latency based-routing to send high priority tasks to the closest transformation instances.
- B. Use a DynamoDB table with an attribute defining the priority level. Transformation instances will scan the table for tasks, sorting the results by priority level.
- C. Use two SQS queues, one for high priority messages, the other for default priority. Transformation instances first poll the high priority queue; if there is no message, they poll the default priority queue.
- D. Use a single SQS queue. Each message contains the priority level. Transformation instances poll high-priority messages first.
Answer: C
NEW QUESTION 40
For AWS CloudFormation, which stack state refuses UpdateStack calls?
- A. UPDATE_COMPLETE
- B. UPDATE_ROLLBACK_FAILED
- C. UPDATE_ROLLBACK_COMPLETE
- D. CREATE_COMPLETE
Answer: B
Explanation:
When a stack is in the UPDATE_ROLLBACK_FAILED state, you can continue rolling it back to return it to a working state (to UPDATE_ROLLBACK_COMPLETE). You cannot update a stack that is in the UPDATE_ROLLBACK_FAILED state. However, if you can continue to roll it back, you can return the stack to its original settings and try to update it again.
Reference:
http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks- continueupdaterollback.html
NEW QUESTION 41
A company wants to monitor its AWS costs for financial review. The cloud operations team is designing an architecture in the AWS Organizations master account to query AWS Cost and Usage Reports for all member accounts. The team must run this query once a month and provide a detailed analysis of the bill Which solution is the MOST scalable and cost-effective way to meet these requirements?
- A. Enable Cost and Usage Reports for member accounts. Deliver the reports to Amazon S3 Use Amazon Redshift for analysis.
- B. Enable Cost and Usage Reports for member accounts. Deliver the reports to Amazon Kinesis Use Amazon QuicKSight for analysis.
- C. Enable Cost and Usage Reports in the master account. Deliver reports to Amazon Kinesis Use Amazon EMR tor analysis.
- D. Enable Cost and Usage Reports in the master account. Deliver the reports to Amazon S3 Use Amazon Athena for analysis.
Answer: D
NEW QUESTION 42
An application uses an Amazon RDS MySQL cluster for the database layer. Database growth requires periodic resizing of the instance. Currently, administrators check the available disk space manually once a week.
How can this process be improved?
- A. Use AWS CloudTrail to monitor storage capacity.
- B. Use the largest instance type for the database.
- C. Use Auto Scaling to increase storage size.
- D. Use Amazon CloudWatch to monitor storage capacity.
Answer: C
Explanation:
Explanation
https://aws.amazon.com/about-aws/whats-new/2019/06/rds-storage-auto-scaling/
NEW QUESTION 43
Can Provisioned IOPS be used on RDS instances launched in a VPC?
- A. Yes, they can be used only with Oracle based instances.
- B. Yes, they can be used for all RDS instances.
- C. No
- D. Yes, they can be used only with MySQL based instances.
Answer: B
Explanation:
The basic building block of Amazon RDS is the DB instance. DB instance storage comes in three types:
Magnetic, General Purpose (SSD), and Provisioned IOPS (SSD). When you buy a server, you get CPU, memory, storage, and IOPS, all bundled together. With Amazon RDS, these are split apart so that you can scale them independently. So, for example, if you need more CPU, less IOPS, or more storage, you can easily allocate them.
Reference:
http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/RDSFAQ.PIOPS.html
NEW QUESTION 44
You are checking the workload on some of your General Purpose (SSD) and Provisioned IOPS (SSD) volumes and it seems that the I/O latency is higher than you require. You should probably check the _____________ to make sure that your application is not trying to drive more IOPS than you have provisioned.
- A. Time it takes for the I/O operation to complete
- B. Amount of IOPS that are available
- C. Acknowledgement from the storage subsystem
- D. Average queue length
Answer: D
Explanation:
In EBS workload demand plays an important role in getting the most out of your General Purpose (SSD) and Provisioned IOPS (SSD) volumes. In order for your volumes to deliver the amount of IOPS that are available, they need to have enough I/O requests sent to them. There is a relationship between the demand on the volumes, the amount of IOPS that are available to them, and the latency of the request (the amount of time it takes for the I/O operation to complete).
Latency is the true end-to-end client time of an I/O operation; in other words, when the client sends a IO, how long does it take to get an acknowledgement from the storage subsystem that the IO read or write is complete.
If your I/O latency is higher than you require, check your average queue length to make sure that your application is not trying to drive more IOPS than you have provisioned. You can maintain high IOPS while keeping latency down by maintaining a low average queue length (which is achieved by provisioning more IOPS for your volume).
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-workload-demand.html
NEW QUESTION 45
Which services allow the customer to retain full administrative privileges of the underlying EC2 instances? Choose 2 answers
- A. Amazon ElastiCache
- B. AWS Elastic Beanstalk
- C. Amazon Elastic Map Reduce
- D. Amazon Relational Database Service
- E. Amazon DynamoDB
Answer: A,B
NEW QUESTION 46
You have deployed a web application targeting a global audience across multiple AWS Regions under the domain name.example.com. You decide to use Route53 Latency-Based Routing to serve web requests to users from the region closest to the user. To provide business continuity in the event of server downtime you configure weighted record sets associated with two web servers in separate Availability Zones per region. Dunning a DR test you notice that when you disable all web servers in one of the regions Route53 does not automatically direct all users to the other region. What could be happening? (Choose 2 answers)
- A. The value of the weight associated with the latency alias resource record set in the region with the disabled servers is higher than the weight for the other region.
- B. You did not setup an http health check tor one or more of the weighted resource record sets associated with me disabled web servers.
- C. Latency resource record sets cannot be used in combination with weighted resource record sets.
- D. You did not set "Evaluate Target Health" to "Yes" on the latency alias resource record set associated with example com in the region where you disabled the servers.
- E. One of the two working web servers in the other region did not pass its HTTP health check.
Answer: B,D
NEW QUESTION 47
A solutions architect must provide a fully managed replacement for an on-premises solution that allows employees and partners to exchange files The solution must be easily accessible to employees connecting from on-premises systems, remote employees, and external partners Which solution meets these requirements?
- A. Use AWS Snowball Edge for local storage and large-scale data transfers
- B. Use AWS Storage Gateway to create a volume gateway to store and transfer files to Amazon S3.
- C. Use Amazon FSx to store and transfer files to make them available remotely
- D. Use AWS Transfer for SFTP to transfer files into and out of Amazon S3
Answer: A
NEW QUESTION 48
Which of the following requires a custom cloudwatch metric to monitor?
- A. Memory utilization of an EC2 instance
- B. Data transfer of an EC2 instance
- C. CPU utilization of an EC2 instance
- D. Disk usage activity of an EC2 instance
Answer: A
NEW QUESTION 49
A user is thinking to use EBS PIOPS volume.
Which of the below mentioned options is a right use case for the PIOPS EBS volume?
- A. Analytics
- B. System boot volume
- C. Mongo DB
- D. Log processing
Answer: C
Explanation:
Provisioned IOPS volumes are designed to meet the needs of I/O-intensive workloads, particularly database workloads that are sensitive to storage performance and consistency in random access I/O throughput. Provisioned IOPS volumes are designed to meet the needs of I/O-intensive workloads, particularly database workloads, that are sensitive to storage performance and consistency in random access I/O throughput business applications, database workloads, such as NoSQL DB, RDBMS, etc.
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html
NEW QUESTION 50
A solutions architect is moving the static content from a public website hosted on Amazon EC2 instances to an Amazon S3 bucket. An Amazon CloudFront distribution will be used to deliver the static assets. The security group used by the EC2 instances restricts access to a limited set of IP ranges. Access to the static content should be similarly restricted.
Which combination of steps will meet these requirements? (Select TWO.)
- A. Create an AWS WAF web ACL that includes the same IP restrictions that exist in the EC2 security group. Associate this new web ACL with the CloudFront distribution.
- B. Create a new security group that includes the same IP restrictions that exist in the current EC2 security group. Associate this new security group with the CloudFront distribution.
- C. Create a new security group that includes the same IP restrictions that exist in the current EC2 security group. Associate this new security group with the S3 bucket hosting the static content.
- D. Create a new IAM role and associate the role with the distribution. Change the permissions either on the S3 bucket or on the files within the S3 bucket so that only the newly created IAM role has read and download permissions.
- E. Create an origin access identity (OAI) and associate it with the distribution. Change the permissions in the bucket policy so that only the OAI can read the objects.
Answer: A,E
NEW QUESTION 51
A company developed a Java application and deployed it to an Apache Tomcat server that runs on Amazon EC2 instances. The company's Engineering team has implemented AWS CloudFormation and Chef Automate to automate the provisioning of and updates to the infrastructure and configuration of the application in the development, test, and production environments. These implementations have led to significantly improves reliability in releasing changes. The Engineering team reports there are frequent service disruptions due to unexpected errors when updating the application of the Apache Tomcat server.
Which solution will increase the reliability of all releases?
- A. Implement a blue/green deployment methodology.
- B. Implement the canary release methodology.
- C. Implement the all at once deployment methodology.
- D. Configure Amazon CloudFront to serve all requests from the cache while deploying the updates.
Answer: A
Explanation:
Explanation/Reference: https://medium.com/@tom.tikkle/blue-green-deployments-increasing-safety-reliability-speed-
98a5c6b222b0
NEW QUESTION 52
A company is running a .NET three-tier web application on AWS. The team currently uses XL storage optimized instances to store and serve the website's image and video files on local instance storage. The company has encountered issues with data loss from replication and instance failures. The Solutions Architect has been asked to redesign this application to improve its reliability while keeping costs low.
Which solution will meet these requirements?
- A. Use AWS Elastic Beanstalk to deploy the .NET application. Move all images and video files to Amazon EFS. Create an Amazon CloudFront distribution that points to the EFS share. Reserve the m4.4xl instances needed to meet base performance requirements.
- B. Move the entire website to Amazon S3 using the S3 website hosting feature. Remove all the web servers and have Amazon S3 communicate directly with the application servers in Amazon VPC.
- C. Set up a new Amazon EFS share, move all image and video files to this share, and then attach this new drive as a mount point to all existing servers. Create an Elastic Load Balancer with Auto Scaling general purpose instances. Enable Amazon CloudFront to the Elastic Load Balancer. Enable Cost Explorer and use AWS Trusted Advisor checks to continue monitoring the environment for future savings.
- D. Implement Auto Scaling with general purpose instance types and an Elastic Load Balancer. Enable an Amazon CloudFront distribution to Amazon S3 and move images and video files to Amazon S3.
Reserve general purpose instances to meet base performance requirements. Use Cost Explorer and AWS Trusted Advisor checks to continue monitoring the environment for future savings.
Answer: D
NEW QUESTION 53
A company has an asynchronous web application where Amazon API Gateway triggers AWS Lambda functions to perform write and update operations on an Amazon RDS DB instance During periods of extreme use API Gateway and Lambda scale in response to the incoming workload but service outages occur due to congestion with Amazon RDS The company is seeking a cost-effective design to alleviate this congestion What should a solutions architect recommend'?
- A. Use Amazon Kinesis to poll the incoming requests from API Gateway to the Lambda functions
- B. implement RDS storage autoscaling with a larger instance type
- C. Use Amazon Simple Queue Service (Amazon SQS) to buffer the incoming requests before delivering them to the Lambda functions
- D. Create read replicas to alleviate me read requests on the database
Answer: C
NEW QUESTION 54
A Solutions Architect is designing an application in AWS. The Architect must not expose the application or database tier over the Internet for security reasons. The application must be low-cost and have a scalable front end. The databases and application tier must have only one-way Internet access to download software and patch updates.
Which solution helps to meet these requirements?
- A. Use a NAT Gateway as the front end for the application tier and to enable the private resources to have Internet access
- B. Use an Amazon EC2-based proxy server as the front end for the application tier, and a NAT Gateway to allow Internet access for private resources
- C. Use an ELB Classic Load Balancer as the front end for the application tier, and an Amazon EC2 proxy server to allow Internet access for private resources
- D. Use an ELB Classic Load Balancer as the front end for the application tier, and a NAT Gateway to allow Internet access for private resources
Answer: D
Explanation:
Explanation
You configure your load balancer to accept incoming traffic by specifying one or more listeners. A listener is a process that checks for connection requests. It is configured with a protocol and port number for connections from clients to the load balancer and a protocol and port number for connections from the load balancer to the targets.
Elastic Load Balancing supports three types of load balancers: Application Load Balancers, Network Load Balancers, and Classic Load Balancers. There is a key difference between the way you configure these load balancers. With Application Load Balancers and Network Load Balancers, you register targets in target groups, and route traffic to the target groups. With Classic Load Balancers, you register instances with the load balancer.
NEW QUESTION 55
A company wants to share forensic accounting data is stored in an Amazon RDS DB instance with an external auditor. The Auditor has its own AWS account and requires its own copy of the database.
How should the company securely share the database with the auditor?
- A. Make an encrypted snapshot of the database, share the snapshot, and allow access to the AWS Key Management Service (AWS KMS) encryption key.
- B. Export the database contents to text files, store the files in Amazon S3, and create a new IAM user for the auditor with access to that bucket.
- C. Copy a snapshot of the database to Amazon S3 and assign an IAM role to the auditor to grant access to the object in that bucket.
- D. Create a read replica of the database and configure IAM standard database authentication to grant the auditor access.
Answer: D
NEW QUESTION 56
A company is hosting a website behind multiple Application Load Balancers. The company has different distribution rights for its content around the world. A solutions architect needs to ensure that users are served the correct content without violating distribution rights.
Which configuration should the solutions architect choose to meet these requirements?
- A. Configure Amazon Route 53 with a geoproximity routing policy.
- B. Configure Application Load Balancers with AWS WAF.
- C. Configure Amazon CloudFront with AWS WAF.
- D. Configure Amazon Route 53 with a geolocation policy.
Answer: D
Explanation:
Explanation/Reference: https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-policy.html (geolocation routing)
NEW QUESTION 57
A company is running an ecommerce application on Amazon EC2 The application consists of a stateless web tier that requires a minimum of 10 instances, and a peak of 250 instances to support the application's usage The application requires 50 instances 80% of the time Which solution should be used to minimize costs?
- A. Purchase Reserved Instances to cover 80 instances Use Spot Instances to cover the remaining instances
- B. Purchase Reserved Instances to cover 50 instances Use On-Demand and Spot Instances to cover the remaining instances
- C. Purchase On-Demand Instances to cover 40 instances Use Spot Instances to cover the remaining instances
- D. Purchase Reserved Instances to cover 250 instances
Answer: B
Explanation:
Explanation
https://aws.amazon.com/ec2/pricing/reserved-instances/
NEW QUESTION 58
You are responsible for a web application that consists of an Elastic Load Balancing (ELB) load balancer
in front of an Auto Scaling group of Amazon Elastic Compute Cloud (EC2) instances. For a recent
deployment of a new version of the application, a new Amazon Machine Image (AMI) was created, and
the Auto Scaling group was updated with a new launch configuration that refers to this new AMI. During
the deployment, you received complaints from users that the website was responding with errors. All
instances passed the ELB health checks.
What should you do in order to avoid errors for future deployments? (Choose 2 answer)
- A. Enable EC2 instance CloudWatch alerts to change the launch configuration AMI to the previous one.
Gradually terminate instances that are using the new AMI. - B. Increase the Elastic Load Balancing Unhealthy Threshold to a higher value to prevent an unhealthy
instance from going into service behind the load balancer. - C. Create a new launch configuration that refers to the new AMI, and associate it with the group. Double
the size of the group, wait for the new instances to become healthy, and reduce back to the original size.
If new instances do not become healthy, associate the previous launch configuration. - D. Add an Elastic Load Balancing health check to the Auto Scaling group. Set a short period for the health
checks to operate as soon as possible in order to prevent premature registration of the instance to the
load balancer. - E. Set the Elastic Load Balancing health check configuration to target a part of the application that fully
tests application health and returns an error if the tests fail.
Answer: C,E
NEW QUESTION 59
A company's website is using an Amazon RDS MySQL Multi-AZ DB instance for its transactional data storage.
There are other internal systems that query this DB instance to fetch data for internal batch processing. The RDS DB instance slows down significantly the internal systems fetch data. This impacts the website's read and write performance, and the users experience slow response times.
Which solution will improve the website's performance?
- A. Use Amazon ElastiCache to cache the query responses for the website.
- B. Add a read replica to the RDS DB instance and configure the internal systems to query the read replica.
- C. Use an RDS PostgreSQL DB instance instead of a MySQL database.
- D. Add an additional Availability Zone to the current RDS MySQL Multi.AZ DB instance.
Answer: B
Explanation:
Explanation
Amazon RDS Read Replicas
Enhanced performance
You can reduce the load on your source DB instance by routing read queries from your applications to the read replica. Read replicas allow you to elastically scale out beyond the capacity constraints of a single DB instance for read-heavy database workloads. Because read replicas can be promoted to master status, they are useful as part of a sharding implementation.
To further maximize read performance, Amazon RDS for MySQL allows you to add table indexes directly to Read Replicas, without those indexes being present on the master.
https://aws.amazon.com/rds/features/read-replicas/
NEW QUESTION 60
Your department creates regular analytics reports from your company's log files All log data is collected in Amazon S3 and processed by daily Amazon Elastic MapReduce (EMR) jobs that generate daily PDF reports and aggregated tables in CSV format for an Amazon Redshift data warehouse.
Your CFO requests that you optimize the cost structure for this system.
Which of the following alternatives will lower costs without compromising average performance of the system or data integrity for the raw data?
- A. Use reduced redundancy storage (RRS) for PDF and .csv data In Amazon S3. Add Spot Instances to Amazon EMR jobs. Use Reserved Instances for Amazon Redshift.
- B. Use reduced redundancy storage (RRS) for all data in Amazon S3. Add Spot Instances to Amazon EMR jobs. Use Reserved Instances for Amazon Redshift.
- C. Use reduced redundancy storage (RRS) for all data In S3. Use a combination of Spot Instances and Reserved Instances for Amazon EMR jobs. Use Reserved Instances for Amazon Redshift.
- D. Use reduced redundancy storage (RRS) for PDF and .csv data in S3. Add Spot Instances to EMR jobs. Use Spot Instances for Amazon Redshift.
Answer: A
Explanation:
Using Reduced Redundancy StorageAmazon S3 stores objects according to their storage class. It assigns the storage class to an object when it is written to Amazon S3. You can assign objects a specific storage class (standard or reduced redundancy) only when you write the objects to an Amazon S3 bucket or when you copy objects that are already stored in Amazon S3. Standard is the default storage class. For information about storage classes, see Object Key and Metadata.
In order to reduce storage costs, you can use reduced redundancy storage for noncritical, reproducible data at lower levels of redundancy than Amazon S3 provides with standard storage. The lower level of redundancy results in less durability and availability, but in many cases, the lower costs can make reduced redundancy storage an acceptable storage solution. For example, it can be a cost-effective solution for sharing media content that is durably stored elsewhere. It can also make sense if you are storing thumbnails and other resized images that can be easily reproduced from an original image.
Reduced redundancy storage is designed to provide 99.99% durability of objects over a given year. This durability level corresponds to an average annual expected loss of 0.01% of objects. For example, if you store 10,000 objects using the RRS option, you can, on average, expect to incur an annual loss of a single object per year (0.01% of 10,000 objects).
Note
This annual loss represents an expected average and does not guarantee the loss of less than 0.01% of objects in a given year.
Reduced redundancy storage stores objects on multiple devices across multiple facilities, providing 400 times the durability of a typical disk drive, but it does not replicate objects as many times as Amazon S3 standard storage. In addition, reduced redundancy storage is designed to sustain the loss of data in a single facility.
If an object in reduced redundancy storage has been lost, Amazon S3 will return a 405 error on requests made to that object. Amazon S3 also offers notifications for reduced redundancy storage object loss: you can configure your bucket so that when Amazon S3 detects the loss of an RRS object, a notification will be sent through Amazon Simple Notification Service (Amazon SNS). You can then replace the lost object. To enable notifications, you can use the Amazon S3 console to set the Notifications property of your bucket.
SettingRRSNotif
NEW QUESTION 61
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Who should take the AWS Solutions Architect-Associate Exam
The AWS Accredited Solutions Architect Associate Assessment is intended for individuals who have an architectural position in solutions and a realistic background of one or more years designing structures on AWS that are usable, cost-effective, tolerant and scalable. AWS Solutions Architect-Associate exam illustrates successfully how safe and functional frameworks on AWS technology can be planned and applied. Defining a solution focused on consumer needs using architectural design criteria Provided advice on execution during the project life cycle, focused on best practise for the enterprise.
The AWS Solutions Architect-Associate Exam is for entry-level IT specialists and organization professionals with standard knowledge of the AWS platform. The AWS CCP certification validates the potential client’s understanding of these topics and their skills; Standard building principles, key services and also their use cases, security and protection, as well as compliance with the AWS model, paid versions and prices. AWS Solutions Architect-Associate Exam is the appropriate starting point for AWS Associate certification and is also an excellent resource for those interested in non-technical projects.
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